High-performance foundation line, ARM Cortex-M4 core with DSP and FPU, 512 Kbytes Flash, 180 MHz CPU, ART Accelerator, Dual QSPI

The STM32F446xC/E devices are based on the high-performance ARM®Cortex®-M4 32-bit RISC core operating at a frequency of up to 180 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 STM32F446xC/E devices incorporate high-speed embedded memories (Flash memory up to 512 Kbyte, up to 128 Kbyte of SRAM), up to 4 Kbytes of backup SRAM, 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.

All devices offer three 12-bit ADCs, two DACs, a low-power RTC, twelve general-purpose 16-bit timers including two PWM timers for motor control, two general-purpose 32-bit timers.

They also feature standard and advanced communication interfaces.

Key Features

  • Core: ARM® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution from Fl ash memory, frequency up to 180 MHz, MPU, 225 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions
  • Memories
    • 512 kB of Flash memory
    • 128 KB of SRAM
    • Flexible external memory controller with up to 16-bit data bus: SRAM,PSRAM,SDRAM/LPSDR SDRAM, Flash NOR/NAND memories
    • Dual mode Quad SPI interface
  • LCD parallel interface, 8080/6800 modes
  • Clock, reset and supply management
    • 1.7 V to 3.6 V application supply and I/Os
    • POR, PDR, PVD and BOR
    • 4-to-26 MHz crystal oscillator
    • Internal 16 MHz factory-trimmed RC (1% accuracy)
    • 32 kHz oscillator for RTC with calibration
    • Internal 32 kHz RC with calibration
  • Low power
    • Sleep, Stop and Standby modes
    • VBAT supply for RTC, 20×32 bit backup registers + optional 4 KB backup SRAM
  • 3×12-bit, 2.4 MSPS ADC: up to 24 channels and 7.2 MSPS in triple interleaved mode
  • 2×12-bit D/A converters
  • General-purpose DMA: 16-stream DMA controller with FIFOs and burst support
  • Up to 17 timers: 2x watchdog, 1x SysTick timer and up to twelve 16-bit and two 32-bit timers up to 180 MHz, each with up to 4 IC/OC/PWM or pulse counter
  • Debug mode
    • SWD & JTAG interfaces
    • Cortex®-M4 Trace Macrocell™
  • Up to 114 I/O ports with interrupt capability
    • Up to 111 fast I/Os up to 90 MHz
    • Up to 112 5 V-tolerant I/Os
  • Up to 20 communication interfaces
    • SPDIF-Rx
    • Up to 4 × I2 C interfaces (SMBus/PMBus)
    • Up to 4 USARTs/2 UARTs (11.25 Mbit/s, ISO7816 interface, LIN, IrDA, modem control)
    • Up to 4 SPIs (45 Mbits/s), 3 with muxed I2 S for audio class accuracy via internal audio PLL or external clock
    • 2 x SAI (serial audio interface)
    • 2 × CAN (2.0B Active)
    • SDIO interface
    • Consumer electronics control (CEC) I/F
  • Advanced connectivity
    • USB 2.0 full-speed device/host/OTG controller with on-chip PHY
    • USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI
    • Dedicated USB power rail enabling on-chip PHYs operation throughout the entire MCU power supply range
  • 8- to 14-bit parallel camera interface up to 54 Mbytes/s
  • CRC calculation unit
  • RTC: subsecond accuracy, hardware calendar
  • 96-bit unique ID

Circuit Diagram

Resources

Technical Documentation

Product Specifications
Description Version Size
ARM® Cortex®-M4 32b MCU+FPU, 225DMIPS, up to 512kB Flash/128+4KB RAM, USB OTG HS/FS, 17 TIMs, 3 ADCs, 20 comm. interfaces 6.0 2 MB
Application Notes
Description Version Size
Audio and waveform generation using the DAC in STM32 microcontrollers 3.0 816 KB
Audio playback and recording using the STM32F4DISCOVERY 1.2 169 KB
Basics and low-cost solution proposals to move from legacy USB2.0 connector to USB Type-C™ connector with STM32 devices 1.0 443 KB
CAN protocol used in the STM32 bootloader 6.0 630 KB
Digital camera interface (DCMI) on STM32 MCUs 1.0 2 MB
EMC design guide for ST microcontrollers 2.0 843 KB
Electrostatic discharge sensitivity measurement 1.6 49 KB
Extending the DAC performance of STM32 microcontrollers 2.0 365 KB
General-purpose timer cookbook 2.0 1 MB
Getting started with STM32F4xxxx MCU hardware development 6.0 1 MB
Handling of soft errors in STM32 applications 2.1 410 KB
High-speed SI simulations using IBIS and board-level simulations using HyperLynx SI on STM32 32-bit ARM® Cortex® MCUs 1.1 2 MB
How to get the best ADC accuracy in STM32 microcontrollers 3.1 1 MB
How to implement a vocoder solution using STM32 microcontrollers 1.1 466 KB
I2C protocol used in the STM32 bootloader 5.0 682 KB
Managing memory protection unit (MPU) in STM32 MCUs 1.0 284 KB
Managing the Driver Enable signal for RS-485 and IO-Link communications with the STM32™’s USART 1.3 191 KB
Migration and compatibility guidelines for STM32 microcontroller applications 3.1 127 KB
Migration of applications from STM32F429/439 lines to STM32F446 line 1.0 396 KB
Oscillator design guide for STM8AF/AL/S and STM32 microcontrollers 11.0 2 MB
PDM audio software decoding on STM32 microcontrollers 1.3 90 KB
Peripherals interconnections on STM32F405/7xx, STM32F415/7xx, STM32F42xxx, STM32F43xxx, STM32F446xx and STM32F469/479xx 3.0 401 KB
Quad-SPI (QSPI) interface on STM32 microcontrollers 1.0 2 MB
SPI protocol used in the STM32 bootloader 4.0 551 KB
STM32 MCUs spread-spectrum clock generation principles, properties and implementation 1.0 551 KB
STM32 USART automatic baud rate detection 1.0 268 KB
STM32 cross-series timer overview 6.0 555 KB
STM32 microcontroller debug toolbox 2.0 5 MB
STM32 microcontroller system memory boot mode 31.0 3 MB
STM32 microcontrollers random number generation validation using NIST statistical test suite 2.0 517 KB
STM32Cube firmware examples for STM32F4 Series 4.0 496 KB
STM8S and STM32™ MCUs: a consistent 8/32-bit product line for painless migration 1.3 212 KB
USART protocol used in the STM32 bootloader 7.0 617 KB
USB DFU protocol used in the STM32 bootloader 6.0 373 KB
Using STM32 device PWM shut-down features for motor control and digital power conversion 4.0 834 KB
Using an electromyogram technique to detect muscle activity 1.0 634 KB
Using the STM32F2, STM32F4 and STM32F7 Series DMA controller 3.0 1 MB
Using the hardware real-time clock (RTC) in low-power modes with STM32 microcontrollers 3.0 1 MB
Virtually increasing the number of serial communication peripherals in STM32 applications 1.1 338 KB
Technical Notes & Articles
Description Version Size
Description of WLCSP for microcontrollers and recommendations for its use 4.0 1 MB
How to use EWARM 6.2x with projects built with EWARM 6.1 and previous versions 1.2 97 KB
Overview of the STM32F0x/F100xx/F103xx and STM32F2xx/F30x/F4xx MCUs PMSM single/dual FOC SDK V4.0 4.1 284 KB
Tape and reel shipping media for STM32 microcontrollers in BGA packages 2.1 745 KB
Tape and reel shipping media for STM8 and STM32 microcontrollers in FPN packages 3.0 753 KB
Tape and reel shipping media for STM8 and STM32 microcontrollers in QFP packages 3.0 830 KB
Tape and reel shipping media for STM8 and STM32 microcontrollers in SO packages 1.0 755 KB
Tape and reel shipping media for STM8 and STM32 microcontrollers in TSSOP and SSOP packages 1.0 743 KB
Reference Manuals
Description Version Size
STM32F446xx advanced ARM®-based 32-bit MCUs 3.0 15 MB
Programming Manuals
Description Version Size
STM32F3 Series, STM32F4 Series, STM32L4 Series and STM32L4+ Series Cortex®-M4 programming manual 6.0 3 MB
Errata Sheets
Description Version Size
STM32F446xC/xE device limitations 2.0 434 KB

HW Model, CAD Libraries & SVD

HW Model, CAD Libraries & SVD
Description Version Size
STM32F4 CAD Symbol and Footprint files 1.3 2 MB
STM32F4 System View Description 1.2 922 KB
STM32F446 Boundary Scan Decription Language (BSDL) files 1.0 29 KB
STM32F446 IBIS models 1.0 10 MB

Presentations & Training Material

Presentations
Description Version Size
STM32 - 32-bit ARM Cortex-M MCUs 3.0 1 MB
STM32 and STM8 Functional Safety Packages 2 1 MB

Publications and Collaterals

Flyers
Description Version Size
Get ready for the largest IoT development ecosystem 17.02 741 KB
STM32 Nucleo boards - Unified scalable offering 17.11 1 MB
STM32 for makers - Releasing your creativity 17.06 2 MB
Brochures
Description Version Size
STM32 32-bit MCU family - Leading supplier of ARM® Cortex®-M microcontrollers 17.10 2 MB

Quality & Reliability

Product Certifications
Description Version Size
STM32 CAN conformance test authentication sheet 1.0 182 KB

Tools and Software

Development Tools
Hardware Development Tools
Software Development Tools
Embedded Software
MCUs Embedded Software
Evaluation Tools
Product Evaluation Tools
Support & Community


Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STM32F446VET6 LQFP 100 14x14x1.4 Tray -40 85 Active 4.744 10000 NEC 3A991A2 PHILIPPINES MORE INFO DISTRIBUTOR AVAILABILITY
STM32F446VET6TR LQFP 100 14x14x1.4 Tape And Reel -40 85 Active 4.744 10000 NEC 3A991A2 PHILIPPINES MORE INFO No availability reported, please contact our Sales office
STM32F446VET7 LQFP 100 14x14x1.4 Tray -40 105 Active 5.076 10000 NEC 3A991A2 PHILIPPINES MORE INFO No availability reported, please contact our Sales office
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(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM32F446VET6 ActiveLQFP 100 14x14x1.4IndustrialEcopack2 0 0
STM32F446VET6TR ActiveLQFP 100 14x14x1.4IndustrialEcopack2 0 0
STM32F446VET7 ActiveLQFP 100 14x14x1.4IndustrialEcopack2 0 0
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(**) 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.

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