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The STM32L443xx devices are the ultra-low-power microcontrollers based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all Arm® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.
The STM32L443xx devices embed high-speed memories (256 Kbyte of Flash memory, 64 Kbyte of SRAM), a Quad SPI flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.
The STM32L443xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall.
The devices offer a fast 12-bit ADC (5 Msps), two comparators, one operational amplifier, two DAC channels, an internal voltage reference buffer, a low-power RTC, one general-purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, four general-purpose 16-bit timers, and two 16-bit low-power timers.
In addition, up to 21 capacitive sensing channels are available. The devices also embed an integrated LCD driver 8x40 or 4x44, with internal step-up converter.
They also feature standard and advanced communication interfaces.Key Features
- Ultra-low-power with FlexPowerControl
- 1.71 V to 3.6 V power supply
- -40 °C to 85/105/125 °C temperature range
- 200 nA in VBAT mode: supply for RTC and 32x32-bit backup registers
- 8 nA Shutdown mode (5 wakeup pins)
- 28 nA Standby mode (5 wakeup pins)
- 280 nA Standby mode with RTC
- 1.0 µA Stop 2 mode, 1.28 µA with RTC
- 84 µA/MHz run mode
- Batch acquisition mode (BAM)
- 4 µs wakeup from Stop mode
- Brown out reset (BOR)
- Interconnect matrix
- Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait-state execution from Flash memory, frequency up to 80 MHz, MPU, 100DMIPS and DSP instructions
- Performance benchmark
- 1.25 DMIPS/MHz (Drystone 2.1)
- 273.55 CoreMark® (3.42 CoreMark/MHz @ 80 MHz)
- Energy benchmark
- 347 ULPMark™ CP score
- 121 ULPMark™ PP score
- Clock Sources
- 4 to 48 MHz crystal oscillator
- 32 kHz crystal oscillator for RTC (LSE)
- Internal 16 MHz factory-trimmed RC (±1%)
- Internal low-power 32 kHz RC (±5%)
- Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy)
- Internal 48 MHz with clock recovery
- 2 PLLs for system clock, USB, audio, ADC
- Up to 83 fast I/Os, most 5 V-tolerant
- RTC with HW calendar, alarms and calibration
- LCD 8× 40 or 4× 44 with step-up converter
- Up to 21 capacitive sensing channels: support touchkey, linear and rotary touch sensors
- 11x timers: 1x 16-bit advanced motor-control, 1x 32-bit and 2x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
- Memories
- 256 KB single bank Flash, proprietary code readout protection
- 64 KB of SRAM including 16 KB with hardware parity check
- Quad SPI memory interface
- Rich analog peripherals (independent supply)
- 1x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 µA/Msps
- 2x 12-bit DAC output channels, low-power sample and hold
- 1x operational amplifier with built-in PGA
- 2x ultra-low-power comparators
- AES: 128/256-bit key encryption hardware accelerator
- 17x communication interfaces
- USB 2.0 full-speed crystal less solution with LPM and BCD
- 1x SAI (serial audio interface)
- 3x I2C FM+(1 Mbit/s), SMBus/PMBus
- 4x USARTs (ISO 7816, LIN, IrDA, modem)
- 1x LPUART (Stop 2 wake-up)
- 3x SPIs (and 1x Quad SPI)
- CAN (2.0B Active) and SDMMC interface
- SWPMI single wire protocol master I/F
- IRTIM (Infrared interface)
- 14-channel DMA controller
- True random number generator
- CRC calculation unit, 96-bit unique ID
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
- All packages are ECOPACK2® compliant
- Ultra-low-power with FlexPowerControl
Circuit Diagram
Sample & Buy
| Part Number | Package | Packing Type | Marketing Status | ECCN (US) | Country of Origin | Temperature (°C) | Timers (typ) (16 bit) | Timers (typ) (32 bit) | Number of A/D Converters (typ) | Number of A/D Converters (typ) | Number of A/D Converters (typ) | D/A Converters (typ) (12 bit) | Comparator | I/Os (High Current) | CAN (typ) | CAN FD (typ) | SPI (typ) | I2S (typ) | USART (typ) | UART (typ) | Integrated op-amps | SMPS | More info | Budgetary Price (US$)*/Qty | Order from ST | Order from Distributors | |
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| STM32L443CCU6 | UFQFPN 48 7x7x0.55 | Tray | Active | 5A992C | CHINA | -40 | 85 | 5 | 1 | - | - | - | 2 | 2 | 38 | 1 | - | 3 | - | 3 | - | 1 | - | MORE INFO Timers (typ) (16 bit): 5 Timers (typ) (32 bit): 1 Number of A/D Converters (typ): - Number of A/D Converters (typ): - Number of A/D Converters (typ): - D/A Converters (typ) (12 bit): 2 Comparator: 2 I/Os (High Current): 38 CAN (typ): 1 CAN FD (typ): - SPI (typ): 3 I2S (typ): - USART (typ): 3 UART (typ): - Integrated op-amps: 1 SMPS: - | 2.2358 / 10k | Buy now | Check Availability |
| STM32L443CCT6 | LQFP 48 7x7x1.4 | Tray | Active | 5A992C | CHINA | -40 | 85 | 5 | 1 | - | - | - | 2 | 2 | 38 | 1 | - | 3 | - | 3 | - | 1 | - | MORE INFO Timers (typ) (16 bit): 5 Timers (typ) (32 bit): 1 Number of A/D Converters (typ): - Number of A/D Converters (typ): - Number of A/D Converters (typ): - D/A Converters (typ) (12 bit): 2 Comparator: 2 I/Os (High Current): 38 CAN (typ): 1 CAN FD (typ): - SPI (typ): 3 I2S (typ): - USART (typ): 3 UART (typ): - Integrated op-amps: 1 SMPS: - | 2.2997 / 10k | Buy now | Check Availability |
| STM32L443CCY6TR | WLCSP 49L DIE 435 P 0.4 MM | Tape And Reel | Active | 5A992C | TAIWAN | -40 | 85 | 5 | 1 | - | - | - | 2 | 2 | 39 | 1 | - | 3 | - | 3 | - | 1 | - | MORE INFO Timers (typ) (16 bit): 5 Timers (typ) (32 bit): 1 Number of A/D Converters (typ): - Number of A/D Converters (typ): - Number of A/D Converters (typ): - D/A Converters (typ) (12 bit): 2 Comparator: 2 I/Os (High Current): 39 CAN (typ): 1 CAN FD (typ): - SPI (typ): 3 I2S (typ): - USART (typ): 3 UART (typ): - Integrated op-amps: 1 SMPS: - | 2.2039 / 10k | Buy now | Check Availability |
| STM32L443CCF6TR | THIN WLCSP 49L 435 PITCH 0.4 | Tape And Reel | Active | 5A992C | - | -40 | 85 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | MORE INFO Timers (typ) (16 bit): - Timers (typ) (32 bit): - Number of A/D Converters (typ): - Number of A/D Converters (typ): - Number of A/D Converters (typ): - D/A Converters (typ) (12 bit): - Comparator: - I/Os (High Current): - CAN (typ): - CAN FD (typ): - SPI (typ): - I2S (typ): - USART (typ): - UART (typ): - Integrated op-amps: - SMPS: - | 2.2039 / 10k | No availability of distributors reported, please contact our sales office | |
STM32L443CCF6TR
Package
THIN WLCSP 49L 435 PITCH 0.4Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
2.2039 / 10k(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
Featured Videos
As part of our embedded online event, we had the pleasure of filming with Reinhard Keil, a Senior Director of Embedded Tools at ARM.
This video is about the STM32L5, our recently announced ultra-low power microcontroller bringing a new security dimension. The STM32L5 is now in full production and all its ecosystem is available including hardware kits, software tools, firmware and all documentations of course. This is our first STM32 based on Cortex-M33 and its Trustzone and using specific ST security implementation - watch the video to find out more!
The STM32L5 is based on Arm® Cortex-M33 and TrustZone® technology combined with STMicroelectronics security implementation. On your STM32L562E-DK discovery board, TrustZone is disabled (factory setting) and you can develop as on any other STM32 device. This video shows how to enable TrustZone on STM32L562E-DK discovery using STM32CubeProgrammer and create, compile and debug or run a new project with STM32CubeIDE. It also shows how to open an example project delivered in STM32CubeL5 MCU Package, modify, compile and debug or run it. For further information, you can refer to AN5394 and AN5424 application notes.
Development Tools
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Picture Part number Manufacturer Description Arm Keil ULINKplus Arm Keil High-performance debug adapter, isolated, with JTAG, SWD, SWV, power measurement, and test I/O Arm Keil ULINKpro Arm Keil High-performance debug adapter via JTAG or SWD and streaming trace via SWV (data/event trace) or ETM (instruction trace) CYCLONE P&E Microcomputer Systems Automated, Stand-Alone Production Programmer, Debug & Test. CYCLONE FX P&E Microcomputer Systems Automated, Stand-Alone Production Programmer, Debug & Test. 
FlashPro Elprotronic Flash programmer for STM8 and ARM based MCUs. Flasher ATE SEGGER Microcontroller Flasher ATE is a gang-programmer for mass production Flasher Portable Plus SEGGER Microcontroller Flasher Portable Plus is a battery driven programming system Flasher Secure SEGGER Microcontroller Flasher Secure is a secure mass production programming system 
GangPro Elprotronic Gang programmer for STM8 and ARM based MCUs. I-jet IAR Systems Debug probe I-jet Trace IAR Systems Debug trace probe 
J-Link SEGGER Microcontroller Segger J-Link debug probe for STM32 J-Trace Pro for Cortex-M SEGGER Microcontroller SEGGER J-Trace Pro debug and trace probe Multilink ACP P&E Microcomputer Systems Debug Probe for ARM devices. Multilink Universal FX P&E Microcomputer Systems High-Speed Debug Probe for ARM and other devices. SIGFOX-USB2-C XoverIoT USB Kickstart-Development Kit. The SIGFOX-USB2 is a baseboard with a SIGFOX-DEV1-C monted on it. 
ST-LINK/V2 ST ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 
STLINK-V3SET ST STLINK-V3 modular in-circuit debugger and programmer for STM32/STM8 Part NumberHigh-performance debug adapter, isolated, with JTAG, SWD, SWV, power measurement, and test I/O
High-performance debug adapter via JTAG or SWD and streaming trace via SWV (data/event trace) or ETM (instruction trace)
Automated, Stand-Alone Production Programmer, Debug & Test.
Automated, Stand-Alone Production Programmer, Debug & Test.
Flash programmer for STM8 and ARM based MCUs.
Flasher ATE is a gang-programmer for mass production
Flasher Portable Plus is a battery driven programming system
Flasher Secure is a secure mass production programming system
Gang programmer for STM8 and ARM based MCUs.
Debug probe
Debug trace probe
Segger J-Link debug probe for STM32
SEGGER J-Trace Pro debug and trace probe
Debug Probe for ARM devices.
High-Speed Debug Probe for ARM and other devices.
USB Kickstart-Development Kit. The SIGFOX-USB2 is a baseboard with a SIGFOX-DEV1-C monted on it.
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32
STLINK-V3 modular in-circuit debugger and programmer for STM32/STM8
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Picture Part number Manufacturer Description Arm Keil MDK Arm Keil Complete software development solution for all STM32 devices. Includes C/C++ Compiler, IDE/Debugger, CMSIS, RTOS, middleware Arm tool: ARM Development Studio ARM Development Solutions Comprehensive embedded toolchain for any Arm-based device: Eclipse-based IDE/debugger, C/C++ Compiler, CMSIS, performance analyzer, graphics debugger. CXSTM32 Cosmic Software STM32 Full Development Package (Compiler + Debugger) CoIDE CooCox CooCox CoIDE, a free and highly-integrated software development environment for ARM Cortex MCUs Compilers for ARM MikroElektronika mikroC PRO for ARM, mikroBasic PRO for ARM and mikroPascal PRO for ARM are fully-featured compilers for ARM® Cortex®-M0, M0+, M3, M4, and M7 microcontrollers. CrossWorks Rowley Rowley Associates CrossWorks, integrated development environment with JTAG Flash download and debug EMP-Thunder Emprog Emprog ThunderBench, fully integrated and well-crafted development C/C++ tools for ARM Cortex FLASHER-STM32 ST STM32 Flash loader demonstrator (UM0462) IAR C-RUN for Arm IAR Systems Run-time analysis tool; add-on product to IAR Embedded Workbench for Arm IAR C-STAT IAR Systems Static analysis tool; add-on product to IAR Embedded Workbench IAR Embedded Workbench for Arm IAR Systems Integrated Development Environment IAR Embedded Workbench for Arm - Functional Safety IAR Systems Integrated Development Environment IAR Visual State IAR Systems State-machine modelling tool MULTI Green Hills Software GreenHills integrated development and debug environment for embedded applications using C and C++ RIDE-STM32 Raisonance Raisonance branded integrated development environment for STM32 MCUs Remedy Bootloader Package RoweBots Remedy Bootloader - Easy Updates and Advanced Protection. Remedy Datalogger Package RoweBots Remedy Datalogger with capabilities for dynamic remote data logging and control. SEGGER Embedded Studio SEGGER Microcontroller Cross-platform Integrated Development Environment (IDE) for managing, building, testing, and deploying embedded applications SENSE Fieldscale An end-to-end solution for the design, schematic capture, and system-level simulation of capacitive touch sensors. 
ST MCU Finder ST STM32 and STM8 product finder for mobile devices and desktops 
ST-MCU-FINDER-PC ST STM32 and STM8 product finder for desktops 
STM-STUDIO-STM32 ST STM Studio run-time variables monitoring and visualization tool for STM32 microcontrollers 
STM32CubeIDE ST Integrated Development Environment for STM32 
STM32CubeMX ST STM32Cube initialization code generator 
STM32CubeProg ST STM32CubeProgrammer software for all STM32 STSW-STM32080 ST DfuSe USB device firmware upgrade STMicroelectronics extension: contains the demo GUI, debugging GUI, all sources files and the protocol layer (UM0412) STSW-STM32095 ST STM32CubeMX Eclipse plug in for STM32 configuration and initialization C code generation STSW-STM32102 ST STM32 Virtual COM Port Driver STSW-STM32103 ST STM32 Serial Wire Viewer (SWV) and Embedded Trace Macrocell (ETM)capabilities. Examples and technical note. STVP-LIB-STM32 ST STVP programming toolkit: C++ source files for creating PC programming interface STVP-STM32 ST ST Visual Programmer STM32 SW4STM32 AC6 System Workbench for STM32: free IDE on Windows, Linux and OS X Storyboard Designer Crank Software Development Tools to create optimized GUIs. TASKINGVX-STM32 TASKING Altium's C/C++ compiler and debugger tools for ARM based MCUs 
TrueSTUDIO Atollic A powerful eclipse based C/C++ integrated development tool for your STM32 projects winIDEA-STM32 iSYSTEM iSYSTEM's complete software development and test solution for the STM32 MCUs Part NumberComplete software development solution for all STM32 devices. Includes C/C++ Compiler, IDE/Debugger, CMSIS, RTOS, middleware
Comprehensive embedded toolchain for any Arm-based device: Eclipse-based IDE/debugger, C/C++ Compiler, CMSIS, performance analyzer, graphics debugger.
STM32 Full Development Package (Compiler + Debugger)
CooCox CoIDE, a free and highly-integrated software development environment for ARM Cortex MCUs
mikroC PRO for ARM, mikroBasic PRO for ARM and mikroPascal PRO for ARM are fully-featured compilers for ARM® Cortex®-M0, M0+, M3, M4, and M7 microcontrollers.
Rowley Associates CrossWorks, integrated development environment with JTAG Flash download and debug
Emprog ThunderBench, fully integrated and well-crafted development C/C++ tools for ARM Cortex
STM32 Flash loader demonstrator (UM0462)
Run-time analysis tool; add-on product to IAR Embedded Workbench for Arm
Static analysis tool; add-on product to IAR Embedded Workbench
Integrated Development Environment
Integrated Development Environment
State-machine modelling tool
GreenHills integrated development and debug environment for embedded applications using C and C++
Raisonance branded integrated development environment for STM32 MCUs
Remedy Bootloader - Easy Updates and Advanced Protection.
Remedy Datalogger with capabilities for dynamic remote data logging and control.
Cross-platform Integrated Development Environment (IDE) for managing, building, testing, and deploying embedded applications
An end-to-end solution for the design, schematic capture, and system-level simulation of capacitive touch sensors.
STM32 and STM8 product finder for mobile devices and desktops
STM32 and STM8 product finder for desktops
STM Studio run-time variables monitoring and visualization tool for STM32 microcontrollers
Integrated Development Environment for STM32
STM32Cube initialization code generator
STM32CubeProgrammer software for all STM32
DfuSe USB device firmware upgrade STMicroelectronics extension: contains the demo GUI, debugging GUI, all sources files and the protocol layer (UM0412)
STM32CubeMX Eclipse plug in for STM32 configuration and initialization C code generation
STM32 Virtual COM Port Driver
STM32 Serial Wire Viewer (SWV) and Embedded Trace Macrocell (ETM)capabilities. Examples and technical note.
STVP programming toolkit: C++ source files for creating PC programming interface
ST Visual Programmer STM32
System Workbench for STM32: free IDE on Windows, Linux and OS X
Development Tools to create optimized GUIs.
Altium's C/C++ compiler and debugger tools for ARM based MCUs
A powerful eclipse based C/C++ integrated development tool for your STM32 projects
iSYSTEM's complete software development and test solution for the STM32 MCUs
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Ecosystems
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Picture Part number Manufacturer Description AWS IoT Core AWS AWS IoT Core is a managed cloud service that lets connected devices easily and securely interact with cloud applications and other devices AZURE Cloud Microsoft Microsoft Azure is an ever-expanding set of cloud services to help your organization meet your business challenges. It's the freedom to build, manage, and deploy applications on a massive, global network using your favorite tools and frameworks. TomTom Online API's TomTom TomTom Online APIs for Search, Map Display, Routing and Real Time Trattic for Location Based Application Developers. Watson IoT Platform IBM IBM Watson IoT Platform is a managed, cloud-hosted service designed to make it simple to derive value from your Internet of Things devices. Part NumberAWS IoT Core is a managed cloud service that lets connected devices easily and securely interact with cloud applications and other devices
Microsoft Azure is an ever-expanding set of cloud services to help your organization meet your business challenges. It's the freedom to build, manage, and deploy applications on a massive, global network using your favorite tools and frameworks.
TomTom Online APIs for Search, Map Display, Routing and Real Time Trattic for Location Based Application Developers.
IBM Watson IoT Platform is a managed, cloud-hosted service designed to make it simple to derive value from your Internet of Things devices.
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Picture Part number Manufacturer Description SIGFOX-MOD1-C XoverIoT The SIGFOX-MOD1 is a ultra-low-power module designed especially for sensor node applications mounted with chip antenna. SIGFOX-MOD1-E XoverIoT The SIGFOX-MOD1-E is an ultra-low-power module designed especially for sensor node applications. Same features as the SIGFOX-MOD1-C but with an U.FL connector for usage of external antennas. SensiBLE SensiEDGE Ready-to-use BLE System-on-Module packed with sensors, low power ARM® 32-bit Cortex®-M4 CPU and coin battery. Speed up IoT product development today! SensiBLE 2.0 SensiEDGE SensiBLE 2.0 SoM integrates a rechargeable Li-Ion battery, a variety of sensors, and a low power Cortex M0 core that executes Bluetooth protocols. 
SensiBLE 2.1 SensiEDGE SensiBLE 2.1 SoM integrates a rechargeable Li-Ion battery, a variety of sensors, and a low power Cortex M0 core that executes Bluetooth protocols. SensiSUB SensiEDGE Connecting low-power SUB 1GHZ RF transceiver to the Cloud with fully customisable sensors, ARM® 32-bit Cortex®-M4 CPU and coin battery. Serial NOR Flash, SLC NAND Flash, eMMC Macronix Macronix delivers high quality, innovative and performance driven range of Non-Volatile products such as NOR Flash SLC NAND Flash and eMMC, ideal for diverse applications from computing, consumer, networking to industrial, automotive, and Internet of Things. A wide product offering suitable for Data and Code storage, Execution-in-Place and Energy-efficient applications Part NumberThe SIGFOX-MOD1 is a ultra-low-power module designed especially for sensor node applications mounted with chip antenna.
The SIGFOX-MOD1-E is an ultra-low-power module designed especially for sensor node applications. Same features as the SIGFOX-MOD1-C but with an U.FL connector for usage of external antennas.
Ready-to-use BLE System-on-Module packed with sensors, low power ARM® 32-bit Cortex®-M4 CPU and coin battery. Speed up IoT product development today!
SensiBLE 2.0 SoM integrates a rechargeable Li-Ion battery, a variety of sensors, and a low power Cortex M0 core that executes Bluetooth protocols.
SensiBLE 2.1 SoM integrates a rechargeable Li-Ion battery, a variety of sensors, and a low power Cortex M0 core that executes Bluetooth protocols.
Connecting low-power SUB 1GHZ RF transceiver to the Cloud with fully customisable sensors, ARM® 32-bit Cortex®-M4 CPU and coin battery.
Macronix delivers high quality, innovative and performance driven range of Non-Volatile products such as NOR Flash SLC NAND Flash and eMMC, ideal for diverse applications from computing, consumer, networking to industrial, automotive, and Internet of Things. A wide product offering suitable for Data and Code storage, Execution-in-Place and Energy-efficient applications
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Embedded Software
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Picture Part number Manufacturer Description Amazon FreeRTOS AWS Amazon FreeRTOS extends the FreeRTOS kernel with open source libraries to easily and securely connect your microcontroller devices to the cloud. CANopen emotas CANopen Master/Slave stack with communication services CycloneCrypto Oryx Embedded Cryptographic library CycloneSSL Oryx Embedded Embedded SSL/TLS library CycloneTCP Oryx Embedded Embedded TCP/IP stack (dual IPv4/IPv6) Flexible Safety RTOS Embedded Office The "Flexible Safety RTOS" is a pre-certified real time kernel. FreeRTOS Kernel AWS The FreeRTOS kernel is an open source real time operating system and the de-facto standard solution for microcontrollers and small microprocessors Gizwits GAgent Gizwits An application program running on various communication modules that provide two-way data communication between upper-layer applications and devices. Gizwits ICUBE Gizwits Gizwits IoT software expansion for STM32Cube. HCC Bootloaders HCC Embedded HCC has developed optimized bootloaders for many years and has a range of high quality solutions that will fit almost any scenario. HCC Embedded Encryption Manager (EEM) HCC Embedded Embedded Encryption Manager (EEM ) allows developers to secure embedded systems using multiple encryption or hash algorithms through a uniform interface. HCC FAT File Systems HCC Embedded HCC is renowned for its deep knowledge of flash storage media. In embedded systems, it is not possible to achieve the required efficiency, performance or reliability with a single file system. HCC Fail-Safe File System HCC Embedded All Flashs File Systems with fail-safe mechanisms for STM32, from HCC Embedded HCC IPSec/IKE HCC Embedded IPSec/IKE provides a robust approach to security in embedded applications such as cars, "point-of-sale" terminals, medical devices, industrial equipment and many others. HCC IPv4 and IPv6 HCC Embedded HCC has developed an advanced, embedded IPv6 - Dual IPv4/v6 stack with no third party or open source content using a structured software development process. HCC MISRA TCP/IP HCC Embedded MISRA Compliant TCP/IP is a highly efficient, embedded stack developed using a verifiable process and conforming strongly to MISRA coding standards. HCC MQTT HCC Embedded MQTT is a small and efficient machine-to-machine protocol. HCC Nichestack HCC Embedded InterNiche Technologies has been a leader in embedded networking for more than 25 years. Now a part of HCC Embedded, Nichestack technology is a valuable resource for any embedded developer. HCC SMFS HCC Embedded HCC has taken the radical approach of defining a system built around the needs of smart-meters. Metering applications usually have well-defined record structures and HCC has used its extensive flash experience to take advantage of this. HCC TLS SSL HCC Embedded Verifiable TLS/SSL: a highly optimized software module designed to provide secure network communications for embedded devices. HCC USB Stack HCC Embedded USB Host & Device stacks for STM32, from HCC Embedded. I-CUBE-EMBOS SEGGER Microcontroller embOS software expansion for STM32Cube I-CUBE-UNISON RoweBots UNISON software expansion for STM32Cube J1939 emotas SAE J1939 protocol stack MicroControl CANopen Master MicroControl The CANopen master protocol stack offers a variety of configuration options and forms the basis for controlling and monitoring complex CANopen networks. The CANopen master protocol stack provides the complete functionality for integration of the CANopen. MicroControl CANopen Slave MicroControl The CANopen slave protocol stack has been optimized for low resource requirements. MicroControl CANopen bootloader MicroControl The CANopen bootloader protocol stack provides the complete functionality for integration of a bootloader according to the CANopen standard in your existing devices. MicroControl J1939 MicroControl The J1939 protocol stack offers the complete functionality for integration of the SAE J1939 standard. Nanoedge AI™ Cartesiam NanoEdge AI™ by Cartesiam is the firstMachine Learning Software specifically developed to entirely run on microcontrollers. OPENRTOS WITTENSTEIN high integrity systems OPENRTOS, The High Performance RTOS from WITTENSTEIN high integrity systems Port CANOpen port industrial automation The CANopen stack is supported by a powerful Design Tool, creating and maintaining the complex and powerful object dictionary. Prevas Simple Connect Prevas A communication infrastructure that provides a secure instant communication between clients and devices connected through the Internet. ProvenCore-M Prove & Run High security operating system for STM32 Arm Cortex-M microcontrollers. SAFERTOS WITTENSTEIN high integrity systems SAFERTOS, The Safety Critical RTOS from WITTENSTEIN high integrity systems SAFERTOS CORE WITTENSTEIN high integrity systems SAFERTOS CORE, The RTOS for embedded systems that need to consider safety, but do not require certification STM32-WMA/DEC ST Audio Engine WMA Decoder and Utilities 
STM32CubeL4 ST STM32Cube MCU Package for STM32L4 series and STM32L4 Plus series (HAL, Low-Layer APIs and CMSIS (CORE, DSP, RTOS), USB, TouchSensing, File system, RTOS, Graphic - coming with examples running on ST boards: STM32 Nucleo, Discovery kits and Evaluation boards) Sigfox Connectivity Sigfox Sigfox IoT connectivity feed your innovation strategy and make the digital transformation of your business a reality. Sigfox IoT connectivity brings value in various business activities. With the continued miniaturization of sensors and technologic advancements such as energy harvesting, we will witness a continuous ow of data, merging the physical world to the digital world. Sigfox Geolocation Sigfox Sigfox Geolocation, the simplest and most efficient IoT location service. Sigfox Geolocation is a low-energy location service for all devices equipped with the simplest Sigfox module, without GPS. There is no need to retrofit to upgrade specific hardware, or to update software: Sigfox can now provide a location for all existing and future devices all over the world. Storyboard Engine Crank Software Embedded Software to create optimized GUIs. UNISON Busses RoweBots UNISON RTOS provides the possibility to work with the core serial busses. UNISON File System RoweBots UNISON FATFS and UNISON Power Safe FAT File System UNISON Kernel RoweBots UNISON Real Time Operating System Kernel UNISON Security RoweBots UNISON RTOS Security Protocols UNISON TCP/IP IPv6/IPv4 Networking Stack RoweBots Complete networking server with or without IPv6 and other network components. UNISON USB RoweBots UNISON USB Embedded Host Server, Embedded Device Server, OTG Server. UNISON Wireless RoweBots Supports various wireless modules. 
X-CUBE-AI ST AI expansion pack for STM32CubeMX X-CUBE-CRYPTOLIB ST STM32 cryptographic firmware library software expansion for STM32Cube (UM1924) X-CUBE-DBFU ST On-the-fly firmware update for dual bank STM32 microcontrollers (AN4767) X-CUBE-DSPDEMO ST Digital Signal Processing with STM32, software expansion for STM32Cube (AN4841) X-CUBE-EEPROM ST EEPROM emulation expansion software for STM32Cube X-CUBE-FPUDEMO ST Floating point unit demonstration on STM32 microcontrollers, software expansion for STM32Cube (AN4044) X-CUBE-IAP-USART ST STM32Cube in-application programming using the USART embedded software (AN4657) X-CUBE-IRREMOTE ST Implementing transmitters and receivers for infrared remote control protocols using STM32Cube (AN4834) X-CUBE-LPTIMER ST Low-power timer (LPTIM) applicative use-cases on STM32 MCUs software expansion for STM32Cube (AN4865) X-CUBE-LPUART ST STM32Cube embedded software demo of power consumption using LPUART (AN4635) X-CUBE-PARAL-COM ST Parallel Synchronous Transmission using GPIO and DMA software expansion for STM32Cube (AN4666) X-CUBE-PCROP ST Proprietary code read-out protection (PCROP) software expansion for STM32Cube (AN4701, AN4758 and AN4968) X-CUBE-RC-CALIB ST STM32L0 and STM32L4 calibration software expansion for STM32Cube (AN4631 and AN4736) X-CUBE-REF-PM ST Reference power mode examples on STM32 MCUs software expansion for STM32Cube (AN4777) X-CUBE-RTC ST Real Time Clock (RTC) software expansion for STM32Cube (AN4759) 
X-CUBE-SBSFU ST Secure boot & secure firmware update software expansion for STM32Cube X-CUBE-SMBUS ST STM32Cube SMBus/PMBus embedded software (AN4502) 
X-CUBE-STL ST Functional safety package to achieve IEC 61508 Safety Integrity Level (SIL2/3) certification with STM32 cURL wolfSSL cURL is a computer software project providing a library for transferring data using various protocols. 
embOS SEGGER Microcontroller embOS priority-controlled RTOS for embedded real time application from Segger 
embOS/IP SEGGER Microcontroller embOS/IP highly efficient IP stack from Segger wolfBoot wolfSSL wolfBoot is open source, commercial grade, embedded security software. wolfCrypt wolfSSL wolfCrypt is open source, commercial grade, FIPS-validated embedded security software. wolfMQTT wolfSSL wolfMQTT is open source, commercial grade, embedded security software. wolfSSH wolfSSL wolfSSH is open source, commercial grade, embedded security software. wolfSSL wolfSSL wolfSSL is open source, commercial grade, embedded security software. wolfSSL JNI and JSSE Provider wolfSSL wolfSSL is open source, commercial grade, embedded security software. wolfTPM wolfSSL wolfTPM is open source, commercial grade, embedded security software. Part NumberAmazon FreeRTOS extends the FreeRTOS kernel with open source libraries to easily and securely connect your microcontroller devices to the cloud.
CANopen Master/Slave stack with communication services
Cryptographic library
Embedded SSL/TLS library
Embedded TCP/IP stack (dual IPv4/IPv6)
The "Flexible Safety RTOS" is a pre-certified real time kernel.
The FreeRTOS kernel is an open source real time operating system and the de-facto standard solution for microcontrollers and small microprocessors
An application program running on various communication modules that provide two-way data communication between upper-layer applications and devices.
Gizwits IoT software expansion for STM32Cube.
HCC has developed optimized bootloaders for many years and has a range of high quality solutions that will fit almost any scenario.
Embedded Encryption Manager (EEM ) allows developers to secure embedded systems using multiple encryption or hash algorithms through a uniform interface.
HCC is renowned for its deep knowledge of flash storage media. In embedded systems, it is not possible to achieve the required efficiency, performance or reliability with a single file system.
All Flashs File Systems with fail-safe mechanisms for STM32, from HCC Embedded
IPSec/IKE provides a robust approach to security in embedded applications such as cars, "point-of-sale" terminals, medical devices, industrial equipment and many others.
HCC has developed an advanced, embedded IPv6 - Dual IPv4/v6 stack with no third party or open source content using a structured software development process.
MISRA Compliant TCP/IP is a highly efficient, embedded stack developed using a verifiable process and conforming strongly to MISRA coding standards.
MQTT is a small and efficient machine-to-machine protocol.
InterNiche Technologies has been a leader in embedded networking for more than 25 years. Now a part of HCC Embedded, Nichestack technology is a valuable resource for any embedded developer.
HCC has taken the radical approach of defining a system built around the needs of smart-meters. Metering applications usually have well-defined record structures and HCC has used its extensive flash experience to take advantage of this.
Verifiable TLS/SSL: a highly optimized software module designed to provide secure network communications for embedded devices.
USB Host & Device stacks for STM32, from HCC Embedded.
embOS software expansion for STM32Cube
UNISON software expansion for STM32Cube
SAE J1939 protocol stack
The CANopen master protocol stack offers a variety of configuration options and forms the basis for controlling and monitoring complex CANopen networks. The CANopen master protocol stack provides the complete functionality for integration of the CANopen.
The CANopen slave protocol stack has been optimized for low resource requirements.
The CANopen bootloader protocol stack provides the complete functionality for integration of a bootloader according to the CANopen standard in your existing devices.
The J1939 protocol stack offers the complete functionality for integration of the SAE J1939 standard.
NanoEdge AI™ by Cartesiam is the firstMachine Learning Software specifically developed to entirely run on microcontrollers.
OPENRTOS, The High Performance RTOS from WITTENSTEIN high integrity systems
The CANopen stack is supported by a powerful Design Tool, creating and maintaining the complex and powerful object dictionary.
A communication infrastructure that provides a secure instant communication between clients and devices connected through the Internet.
High security operating system for STM32 Arm Cortex-M microcontrollers.
SAFERTOS, The Safety Critical RTOS from WITTENSTEIN high integrity systems
SAFERTOS CORE, The RTOS for embedded systems that need to consider safety, but do not require certification
Audio Engine WMA Decoder and Utilities
STM32Cube MCU Package for STM32L4 series and STM32L4 Plus series (HAL, Low-Layer APIs and CMSIS (CORE, DSP, RTOS), USB, TouchSensing, File system, RTOS, Graphic - coming with examples running on ST boards: STM32 Nucleo, Discovery kits and Evaluation boards)
Sigfox IoT connectivity feed your innovation strategy and make the digital transformation of your business a reality. Sigfox IoT connectivity brings value in various business activities. With the continued miniaturization of sensors and technologic advancements such as energy harvesting, we will witness a continuous ow of data, merging the physical world to the digital world.
Sigfox Geolocation, the simplest and most efficient IoT location service. Sigfox Geolocation is a low-energy location service for all devices equipped with the simplest Sigfox module, without GPS. There is no need to retrofit to upgrade specific hardware, or to update software: Sigfox can now provide a location for all existing and future devices all over the world.
Embedded Software to create optimized GUIs.
UNISON RTOS provides the possibility to work with the core serial busses.
UNISON FATFS and UNISON Power Safe FAT File System
UNISON Real Time Operating System Kernel
UNISON RTOS Security Protocols
Complete networking server with or without IPv6 and other network components.
UNISON USB Embedded Host Server, Embedded Device Server, OTG Server.
Supports various wireless modules.
AI expansion pack for STM32CubeMX
STM32 cryptographic firmware library software expansion for STM32Cube (UM1924)
On-the-fly firmware update for dual bank STM32 microcontrollers (AN4767)
Digital Signal Processing with STM32, software expansion for STM32Cube (AN4841)
EEPROM emulation expansion software for STM32Cube
Floating point unit demonstration on STM32 microcontrollers, software expansion for STM32Cube (AN4044)
STM32Cube in-application programming using the USART embedded software (AN4657)
Implementing transmitters and receivers for infrared remote control protocols using STM32Cube (AN4834)
Low-power timer (LPTIM) applicative use-cases on STM32 MCUs software expansion for STM32Cube (AN4865)
STM32Cube embedded software demo of power consumption using LPUART (AN4635)
Parallel Synchronous Transmission using GPIO and DMA software expansion for STM32Cube (AN4666)
Proprietary code read-out protection (PCROP) software expansion for STM32Cube (AN4701, AN4758 and AN4968)
STM32L0 and STM32L4 calibration software expansion for STM32Cube (AN4631 and AN4736)
Reference power mode examples on STM32 MCUs software expansion for STM32Cube (AN4777)
Real Time Clock (RTC) software expansion for STM32Cube (AN4759)
Secure boot & secure firmware update software expansion for STM32Cube
STM32Cube SMBus/PMBus embedded software (AN4502)
Functional safety package to achieve IEC 61508 Safety Integrity Level (SIL2/3) certification with STM32
cURL is a computer software project providing a library for transferring data using various protocols.
embOS priority-controlled RTOS for embedded real time application from Segger
embOS/IP highly efficient IP stack from Segger
wolfBoot is open source, commercial grade, embedded security software.
wolfCrypt is open source, commercial grade, FIPS-validated embedded security software.
wolfMQTT is open source, commercial grade, embedded security software.
wolfSSH is open source, commercial grade, embedded security software.
wolfSSL is open source, commercial grade, embedded security software.
wolfSSL is open source, commercial grade, embedded security software.
wolfTPM is open source, commercial grade, embedded security software.
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Evaluation Tools
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Picture Part number Manufacturer Description 
32L476GDISCOVERY ST Discovery kit with STM32L476VG MCU 
32L496GDISCOVERY ST Discovery kit with STM32L496AG MCU 
B-L475E-IOT01A ST STM32L4 Discovery kit IoT node, low-power wireless, BLE, NFC, SubGHz, Wi-Fi EasyMx PRO v7 for STM32 MikroElektronika Development board for STM32 ARM Cortex M0, M3, M4, and M7 mcus. Fusion for STM32 -- World?s first DEBUGGER over WIFI. 
NUCLEO-L412KB ST STM32 Nucleo-32 development board with STM32L412KB MCU, supports Arduino nano connectivity 
NUCLEO-L412RB-P ST STM32 Nucleo-64 development board with STM32L412RB MCU, SMPS, supports Arduino, ST Zio and morpho connectivity 
NUCLEO-L432KC ST STM32 Nucleo-32 development board with STM32L432KC MCU, supports Arduino nano connectivity 
NUCLEO-L433RC-P ST STM32 Nucleo-64 development board with STM32L433RC MCU, SMPS, supports Arduino, ST Zio and morpho connectivity 
NUCLEO-L452RE ST STM32 Nucleo-64 development board with STM32L452RE MCU, supports Arduino and ST morpho connectivity 
NUCLEO-L452RE-P ST STM32 Nucleo-64 development board with STM32L452RE MCU, SMPS, supports Arduino, ST Zio and morpho connectivity 
NUCLEO-L476RG ST STM32 Nucleo-64 development board with STM32L476RG MCU, supports Arduino and ST morpho connectivity 
NUCLEO-L496ZG ST STM32 Nucleo-144 development board with STM32L496ZG MCU, supports Arduino, ST Zio and morpho connectivity 
NUCLEO-L496ZG-P ST STM32 Nucleo-144 development board with STM32L496ZGTP MCU, SMPS, supports Arduino, ST Zio and morpho connectivity 
NUCLEO-L4A6ZG ST STM32 Nucleo-144 development board with STM32L4A6ZG MCU, supports Arduino, ST Zio and morpho connectivity 
P-L496G-CELL02 ST LTE Cellular to Cloud Pack with STM32L496AG MCU 
STM32L476G-EVAL ST Evaluation board with STM32L476ZG MCU Part NumberDiscovery kit with STM32L476VG MCU
Discovery kit with STM32L496AG MCU
STM32L4 Discovery kit IoT node, low-power wireless, BLE, NFC, SubGHz, Wi-Fi
Development board for STM32 ARM Cortex M0, M3, M4, and M7 mcus.
World?s first DEBUGGER over WIFI.
STM32 Nucleo-32 development board with STM32L412KB MCU, supports Arduino nano connectivity
STM32 Nucleo-64 development board with STM32L412RB MCU, SMPS, supports Arduino, ST Zio and morpho connectivity
STM32 Nucleo-32 development board with STM32L432KC MCU, supports Arduino nano connectivity
STM32 Nucleo-64 development board with STM32L433RC MCU, SMPS, supports Arduino, ST Zio and morpho connectivity
STM32 Nucleo-64 development board with STM32L452RE MCU, supports Arduino and ST morpho connectivity
STM32 Nucleo-64 development board with STM32L452RE MCU, SMPS, supports Arduino, ST Zio and morpho connectivity
STM32 Nucleo-64 development board with STM32L476RG MCU, supports Arduino and ST morpho connectivity
STM32 Nucleo-144 development board with STM32L496ZG MCU, supports Arduino, ST Zio and morpho connectivity
STM32 Nucleo-144 development board with STM32L496ZGTP MCU, SMPS, supports Arduino, ST Zio and morpho connectivity
STM32 Nucleo-144 development board with STM32L4A6ZG MCU, supports Arduino, ST Zio and morpho connectivity
LTE Cellular to Cloud Pack with STM32L496AG MCU
Evaluation board with STM32L476ZG MCU
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Support and Applications
| Part Number | Marketing Status | Package | SMPS | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|---|
| STM32L443CCF6TR | Active | THIN WLCSP 49L 435 PITCH 0.4 | - | Industrial | Ecopack2 | |
| STM32L443CCT6 | Active | LQFP 48 7x7x1.4 | - | Industrial | Ecopack2 | |
| STM32L443CCU6 | Active | UFQFPN 48 7x7x0.55 | - | Industrial | Ecopack2 | |
| STM32L443CCY6TR | Active | WLCSP 49L DIE 435 P 0.4 MM | - | Industrial | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
