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STM32L151CC

Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, USB, 2xOp-amp
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The ultra-low-power STM32L15xxC devices incorporate the connectivity power of the universal serial bus (USB) with the high-performance ARM®Cortex®-M3 32-bit RISC core operating at a 32 MHz frequency, a memory protection unit (MPU), high-speed embedded memories (Flash memory up to 256 Kbytes and RAM up to 32 Kbytes) and an extensive range of enhanced I/Os and peripherals connected to two APB buses.

The STM32L15xxC devices offer two operational amplifiers, one 12-bit ADC, two DACs, two ultra-low-power comparators, one general-purpose 32-bit timer, six general-purpose 16-bit timers and two basic timers, which can be used as time bases.

Moreover, the STM32L15xxC devices contain standard and advanced communication interfaces: up to two I2Cs, three SPIs, two I2S, three USARTs and an USB. The STM32L15xxC devices offer up to 23 capacitive sensing channels to simply add touch sensing functionality to any application.

They also include a real-time clock and a set of backup registers that remain powered in Standby mode.

Finally, the integrated LCD controller has a built-in LCD voltage generator that allows you to drive up to 8 multiplexed LCDs with contrast independent of the supply voltage.

The ultra-low-power STM32L15xxC devices operate from a 1.8 to 3.6 V power supply (down to 1.65 V at power down) with BOR and from a 1.65 to 3.6 V power supply without BOR option. They are available in the -40 to +85 °C temperature range, extended to 105°C in low-power dissipation state. A comprehensive set of power-saving modes allows the design of low-power applications

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Errata Sheet
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Datasheet

Key Features

  • Ultra-low-power platform
  • 1.65 V to 3.6 V power supply
  • -40 °C to 85 °C/105 °C temperature range
  • 0.29μA Standby mode (3 wakeup pins)
  • 1.15 μA Standby mode + RTC
  • 0.44 μA Stop mode (16 wakeup lines)
  • 1.4 μA Stop mode + RTC
  • 8.6 μA Low-power Run mode
  • 185 μA/MHz Run mode
  • 10 nA ultra-low I/O leakage
  • 8 μs wakeup time
  • Core: ARM®Cortex®-M3 32-bit CPU
  • From 32 kHz up to 32 MHz max
  • 33.3 DMIPS peak (Dhrystone 2.1)
  • Memory protection unit
  • Reset and supply management
  • Low power, ultrasafe BOR (brownout reset) with 5 selectable thresholds
  • Ultra-low-power POR/PDR
  • Programmable voltage detector (PVD)
  • Clock sources
  • 1 to 24 MHz crystal oscillator
  • 32 kHz oscillator for RTC with calibration
  • High Speed Internal 16 MHz factory-trimmed RC (+/- 1%)
  • Internal Low Power 37 kHz RC
  • Internal multispeed low power 65 kHz to 4.2 MHz PLL for CPU clock and USB (48 MHz)
  • Pre-programmed bootloader
  • USB and USART supported
  • Development support
  • Serial wire debug supported
  • JTAG and trace supported
  • Up to 83 fast I/Os (70 I/Os 5V tolerant), all mappable on 16 external interrupt vectors
  • Memories
  • 256 KB Flash with ECC
  • 32 KB RAM
  • 8 KB of true EEPROM with ECC
  • 128 Byte Backup Register
  • LCD Driver for up to 8x40 segments
  • Support contrast adjustment
  • Support blinking mode
  • Step-up converter on board
  • Rich analog peripherals (down to 1.8 V)
  • 2x Operational Amplifier
  • 12-bit ADC 1Msps up to 25 channels
  • 12-bit DAC 2 channels with output buffers
  • 2x Ultra-low-power-comparators(window mode and wake up capability)
  • DMA controller 12x channels
  • 9x peripherals communication interface
  • 1x USB 2.0 (internal 48 MHz PLL)
  • 3x USART
  • 3x SPI 16 Mbits/s (2x SPI with I2S)
  • 2x I2C (SMBus/PMBus)
  • 11x timers: 1x 32-bit, 6x 16-bit with up to 4 IC/OC/PWM channels, 2x 16-bit basic timer, 2x watchdog timers (independent and window)
  • Up to 23 capacitive sensing channels
  • CRC calculation unit, 96-bit unique ID

Circuit Diagram

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS8890: Ultra-low-power 32-bit MCU ARM®-based Cortex®-M3, 256KB Flash, 32KB SRAM, 8KB EEPROM, LCD, USB, ADC, DAC
9.0 1,856 KB

Application Notes

Description Version Size
pdf
AN1181: Electrostatic discharge sensitivity measurement
1.4 59 KB
pdf
AN1709: EMC design guide for ST microcontrollers
1.7 657 KB
pdf
AN2606: STM32™ microcontroller system memory boot mode
19.0 1,871 KB
pdf
AN2834: How to get the best ADC accuracy in STM32Fx Series and STM32L1 Series devices
2.0 846 KB
pdf
AN2869: Guidelines for designing touch sensing applications
6.1 977 KB
pdf
AN3155: USART protocol used in the STM32 bootloader
6.0 1,157 KB
pdf
AN3156: USB DFU protocol used in the STM32 bootloader
4.0 395 KB
pdf
AN3193: STM32L1xx ultralow power features overview
2.0 234 KB
pdf
AN3216: Getting started with STM32L1xxx hardware development
7.0 674 KB
pdf
AN3236: Guidelines to increase the number of touch sensing touchkeys
3.0 310 KB
pdf
AN3248: Using STM32L1 analog comparators in application cases
3.0 318 KB
pdf
AN3307: Guidelines for obtaining IEC 60335 Class B certification for any STM32 application
4.0 431 KB
pdf
AN3364: Migration and compatibility guidelines for STM32 microcontroller applications
3.0 128 KB
pdf
AN3371: Using the hardware real-time clock (RTC) in STM32 F0, F2, F3, F4 and L1 series of MCUs
5.0 422 KB
pdf
AN3413: STM32L1x current consumption measurement and touch sensing demonstration firmware
2.0 319 KB
pdf
AN3422: Migration of microcontroller applications from STM32F1 to STM32L1 series
2.0 312 KB
pdf
AN3998: PDM audio software decoding on STM32 microcontrollers
1.2 91 KB
pdf
AN4013: STM32F0, STM32F1, STM32F2, STM32F4, STM32L1 series, STM32F30xC/Bx, STM32F358xC, STM32F37x, timer overview
3.0 407 KB
pdf
AN4229: How to implement a vocoder solution using STM32 microcontrollers
1.0 467 KB
pdf
AN4246: Proprietary Code Read Out Protection on STM32L1 microcontrollers
1.0 285 KB
pdf
AN4310: Sampling capacitor selection guide for MCU based touch sensing applications
2.0 175 KB
pdf
AN4312: Guidelines for designing touch sensing applications with surface sensors
1.0 973 KB
pdf
AN4316: Tuning a STMTouch-based application
2.0 1,178 KB
pdf
AN4566: Extending the DAC performance of STM32 microcontrollers
1.0 364 KB

Technical Notes & Articles

Description Version Size
pdf
TA0340: STM32L Cortex-M3 microcontroller for usage in low-power healthcare applications
1.0 358 KB
pdf
TA0342: Accurate power consumption estimation for STM32L1 series of ultra-low-power microcontrollers
2.0 343 KB
pdf
TN0830: How to use EWARM 6.2x with projects built with EWARM 6.1 and previous versions
1.1 97 KB

Reference Manual

Description Version Size
pdf
RM0038: STM32L100xx, STM32L151xx, STM32L152xx and STM32L162xx advanced ARM®-based 32-bit MCUs
11.0 15,196 KB

Programming Manual

Description Version Size
pdf
PM0056: STM32F10xxx/20xxx/21xxx/L1xxxx Cortex-M3 programming manual
5.0 4,101 KB

Errata Sheet

Description Version Size
pdf
ES0238: STM32L100RC and STM32L15xxC ultra-low-power MCU limitations
2.0 450 KB

HW Model & CAD Libraries

HW Model & CAD Libraries

Description Version Size
zip
STM32 Boundary Scan Description Language (BSDL) files
3.0.0 195 KB

Presentations & Training Material

Presentations

Description Version Size
pdf
Fire alarms and smoke detectors - Application guide
1.0.0 336 KB
pdf
STM32 Embedded Software
1.0.0 571 KB
pdf
STM32 and STM8 embedded software solutions
3.0 1,771 KB
pdf
STM8L and STM32 L1 series - Ultra-low-power platform
790 KB

Related Tools and Software

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STM32CubeF2 Embedded software for STM32 F2 series (HAL low level drivers, USB, TCP/IP, File system, RTOS, Graphic - coming with examples running on ST boards)
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STemWin Professional graphical stack library enabling the building up of Graphical User Interfaces (GUIs) (AN4323)
STM32-EXPERIMENT IAR Experiment! Kits for STM32 MCUs
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STSW-STM32127 STM32F10xx, STM32F2xx, STM32F4xx and STM32L1xx I2C Communication peripheral application library (CPAL) (UM1029)
STSW-STM32121 STM32F10x, STM32L1xx and STM32F3xx USB full speed device library (UM0424)
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STSW-STM32077 STM32L1xx standard peripherals library
STSW-STM32076 STM32L1xx internal RC oscillators calibration (AN3300)
STSW-STM32075 STM32L1xx in-application programming (IAP) using the USART (AN3310)
STSW-STM32017 STM32F10xxx Speex library firmware STM32, StdPeriph Lib, speex, audio (AN2812)
STSW-STM32002 Clock configuration tool for STM32L1xx microcontrollers (AN3309)
STMPRIMER EvoPrimer components to build your own EvoPrimer for easy evaluation and development with STM32 and STM8 MCUs
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STSW-STM32099 STM32 secure firmware upgrade (SFU) overview (AN4023)
STSW-STM32098 STM32 embedded GUI library (AN3128)
STSW-STM32094 STM32 in-application programming over the I2C bus (AN3078)
STSW-STM32047 Implementing receivers for infrared remote control protocols using STM32F1 microcontrollers (AN3174)
STSW-STM32028 STM32's ADC modes and their applications (AN3116)
STSW-STM32025 Managing the Driver Enable signal for RS-485 and IO-Link communications with the STM32 USART
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CoIDE A free and highly-integrated software development environment for ARM Cortex MCUs
TrueVERIFIER Tool for advanced test automation. The product performs source code analysis and auto-generate unit tests that exercise an extensive set of different execution paths
TrueANALYSER A tool that performs advanced test quality measurements. The product performs dynamic execution flow analysis and provides rigorous code coverage measurements.
TrueINSPECTOR A tool that detects potential coding issues at an early stage. The product performs static source code inspection and generates software metrics and code complexity measurements
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Hitop5 Universal user interface, IDE and debugger for all Hitex development tools
MULTI Integrated development and debug environment for embedded applications using C and C++.
EmbestIDE Includes project manager, source-code editor, compiler, debugger, ARM instruction set simulator
AsIDE Includes the SlickEditor, project management, build capability and pre-packaged adaptation for most popular third-party tools
TASKINGVX TASKING VX-toolset for ARM based on Altium's Viper C compiler technology
STM-STUDIO STM Studio run-time variables monitoring and visualization tool for STM8 and STM32 microcontrollers
ST-LINK/V2 ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32
STVP ST Visual Programmer for programming ST7, STM8 and STM32
STX-PRO/RAIS Unlimited in-circuit debugging/programming tool for STM32, STR7 and STR9
STX-RLINK In-circuit debugger/programmer for STM8, ST7, STM32, STR7 and STR9 microcontrollers
STSW-STM32103 STM32 Serial Wire Viewer (SWV) and Embedded Trace Macrocell (ETM)capabilities. Examples and technical note.
STSW-STM32102 STM32 Virtual COM Port Driver
TAP-KNX-KAIStack KNX home automation for STM8 and STM32, from Tapko Technologies GMBH
STM32-PRIMER/LAB Complete EvoPrimer ready-to-use from Raisonance for STM32 standalone programmer & application monitor
ALTIA-GUI Altia DeepScreen for STM32: Graphical user interface (GUI)
WITT-RTOS Wittenstein OpenRTOS, commercial flavor of open source FreeRTOS
WITT-RTOS-SAFE Wittenstein SafeRTOS, safety-certified flavor of open source FreeRTOS
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IAR-EWARM IAR Integrated development environment and optimizing C/C++ compiler for ARM Cortex-M
WEI-KNX Weinzierl KNX standard communication protocols for the STM32 ARM Cortex-M Microcontrollers families (KNX Stack)
YOG-fRSTL Functional safety Test Libraries from Yogitech for STM32 ARM Cortex-M Microcontrollers families
emtas-CANopen CANopen Protocol Stack for STM32
EXP-TRACE Express Logic TraceX Graphical finetuning tool
EXP-FILE Express Logic FileX file system
EXP-USB Express Logic USBX USB stack
EXP-RTOS Express Logic ThreadX Real time operating system (RTOS)
ORYX-SSL Oryx CycloneSSL lightweight SSL/TLS implementation
ORYX-TCP Oryx CycloneTCP TCP/IP stack (IPv4, IPv6)
WITT-MW Wittenstein Middleware components (USB, File System, TCP/IP, ...)

Publications and Collaterals

Flyer

Description Version Size
pdf
STM32 32-bit MCU family
2,651 KB
pdf
STM32 32-bit MCU family (Japanese Version)
222 KB
pdf
STM32 Nucleo boards
1.0 2,572 KB

Brochure

Description Version Size
pdf
Products and solutions for Factory automation and Control
4,504 KB

White Paper

Description Version Size
pdf
STM32 More Than a Core - Circuit Cellar, Tom Cantrell
1.0 355 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Order From STUnit Price (US$)*
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Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STM32L151CCT6ActiveLQFP 48 7x7x1.4Tray-4085-2.816Distributor reported inventory date: 2014-12-19
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA14571500
Newark Element14Order NowAMERICA6790
ARROWOrder NowEUROPE50
Farnell Element14Order NowEUROPE14271
RUTRONIKOrder NowEUROPE4311
MOUSEROrder NowWORLDWIDE13931
Ecopack2-
STM32L151CCT6JActiveLQFP 48 7x7x1.4Tray-4085-3.379No availability reported, please contact our Sales officeEcopack2-
STM32L151CCT6TRActiveLQFP 48 7x7x1.4Tape And Reel-4085-2.816No availability reported, please contact our Sales officeEcopack2-
STM32L151CCU6ActiveUFQFPN 48 7x7x0.55Tray-4085-2.816Distributor reported inventory date: 2014-12-19
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA12471560
Farnell Element14Order NowEUROPE5201
RUTRONIKOrder NowEUROPE1751
Ecopack2-
STM32L151CCU6TRActiveUFQFPN 48 7x7x0.55Tape And Reel-4085-2.816No availability reported, please contact our Sales officeEcopack2-

(*) 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
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