High-performance advanced line, ARM Cortex-M4 core with DSP and FPU, 2 Mbytes Flash, 180 MHz CPU, ART Accelerator, Chrom-ARTAccelerator, FMC with SDRAM, TFT

The STM32F427xx and STM32F429xx 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 STM32F427xx and STM32F429xx devices incorporate high-speed embedded memories (Flash memory up to 2 Mbyte, up to 256 kbytes 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 Flash memory, frequency up to 180 MHz, MPU, 225 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions
  • Memories
    • Up to 2 MB of Flash memory organized into two banks allowing read-while-write
    • Up to 256+4 KB of SRAM including 64-KB of CCM (core coupled memory) data RAM
    • Flexible external memory controller with up to 32-bit data bus: SRAM,PSRAM,SDRAM/LPSDR SDRAM , Compact Flash/NOR/NAND memories
  • LCD parallel interface, 8080/6800 modes
  • LCD-TFT controller up to XGA resolution with dedicated Chrom-ART Accelerator™ for enhanced graphic content creation (DMA2D)
  • 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
    • 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: 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 and quadrature (incremental) encoder input
  • Debug mode
    • SWD & JTAG interfaces
    • Cortex-M4 Trace Macrocell™
  • Up to 168 I/O ports with interrupt capability
    • Up to 164 fast I/Os up to 90 MHz
    • Up to 166 5 V-tolerant I/Os
  • Up to 21 communication interfaces
    • Up to 3 × I2 C interfaces (SMBus/PMBus)
    • Up to 4 USARTs/4 UARTs (11.25 Mbit/s, ISO7816 interface, LIN, IrDA, modem control)
    • Up to 6 SPIs (45 Mbits/s), 2 with muxed full-duplex I2 S for audio class accuracy via internal audio PLL or external clock
    • 1 x SAI (serial audio interface)
    • 2 × CAN (2.0B Active) and SDIO interface
  • 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
    • 10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2 hardware, MII/RMII
  • 8- to 14-bit parallel camera interface up to 54 Mbytes/s
  • True random number generator
  • CRC calculation unit
  • RTC: subsecond accuracy, hardware calendar
  • 96-bit unique ID


Technical Documentation

Product Specifications
Description Version Size
DS9405 DS9405: ARM Cortex-M4 32b MCU+FPU, 225DMIPS, up to 2MB Flash/256+4KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 20 comm. interfaces, camera & LCD-TFT 9.0 3 MB
Application Notes
Description Version Size
AN4660 AN4660: Migration of microcontroller applications from STM32F42xxx/STM32F43xxx to STM32F74xxx/STM32F75xxx 2.0 306 KB
AN3126 AN3126: Audio and waveform generation using the DAC in STM32 microcontrollers 2.0 829 KB
AN3997 AN3997: Audio playback and recording using the STM32F4DISCOVERY 1.2 169 KB
AN4775 AN4775: 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
AN3154 AN3154: CAN protocol used in the STM32 bootloader 5.0 632 KB
AN1709 AN1709: EMC design guide for ST microcontrollers 2.0 843 KB
AN1181 AN1181: Electrostatic discharge sensitivity measurement 1.6 49 KB
AN4566 AN4566: Extending the DAC performance of STM32 microcontrollers 2.0 365 KB
AN4776 AN4776: General-purpose timer cookbook 1.0 1 MB
AN4488 AN4488: Getting started with STM32F4xxxx MCU hardware development 5.0 1 MB
AN4750 AN4750: Handling of soft errors in STM32 applications 2.1 410 KB
AN4803 AN4803: High-speed SI simulations using IBIS and board-level simulations using HyperLynx SI on STM32 32-bit ARM® Cortex® MCUs 1.1 2 MB
AN2834 AN2834: How to get the best ADC accuracy in STM32Fx Series and STM32L1 Series devices 2.1 845 KB
AN4229 AN4229: How to implement a vocoder solution using STM32 microcontrollers 1.0 466 KB
AN4073 AN4073: How to improve ADC accuracy when using STM32F2xx and STM32F4xx microcontrollers 5.1 522 KB
AN4221 AN4221: I2C protocol used in the STM32 bootloader 4.0 681 KB
AN4838 AN4838: Managing memory protection unit (MPU) in STM32 MCUs 1.0 284 KB
AN3070 AN3070: Managing the Driver Enable signal for RS-485 and IO-Link communications with the STM32™’s USART 1.3 191 KB
AN4547 AN4547: Migrating from STM32F407xx/417xx to STM32F427xx/429xx/437xx/439xx 1.0 145 KB
AN3364 AN3364: Migration and compatibility guidelines for STM32 microcontroller applications 3.1 127 KB
AN4658 AN4658: Migration of applications from STM32F429/439 lines to STM32F446 line 1.0 396 KB
AN4675 AN4675: Migration of microcontroller applications from STM32F42xxx/STM32F43xxx to STM32F469xx/STM32F479xx 3.0 347 KB
AN2867 AN2867: Oscillator design guide for STM8S, STM8A and STM32 microcontrollers 10.0 2 MB
AN3998 AN3998: PDM audio software decoding on STM32 microcontrollers 1.3 90 KB
AN4640 AN4640: Peripherals interconnections on STM32F405/7xx, STM32F415/7xx, STM32F42xxx, STM32F43xxx, STM32F446xx and STM32F469/479xx 3.0 401 KB
AN4286 AN4286: SPI protocol used in the STM32 bootloader 3.0 505 KB
AN4850 AN4850: STM32 MCUs spread-spectrum clock generation principles, properties and implementation 1.0 551 KB
AN4013 AN4013: STM32 cross-series timer overview 6.0 555 KB
AN2606 AN2606: STM32 microcontroller system memory boot mode 28.0 3 MB
AN4230 AN4230: STM32 microcontrollers random number generation validation using NIST statistical test suite 2.0 517 KB
AN4739 AN4739: STM32Cube firmware examples for STM32F4 Series 3.0 424 KB
AN2945 AN2945: STM8S and STM32™ MCUs: a consistent 8/32-bit product line for painless migration 1.3 212 KB
AN3155 AN3155: USART protocol used in the STM32 bootloader 6.1 1 MB
AN3156 AN3156: USB DFU protocol used in the STM32 bootloader 4.0 394 KB
AN4879 AN4879: USB hardware and PCB guidelines using STM32 MCUs 1.0 369 KB
AN4277 AN4277: Using STM32 device PWM shut-down features for motor control and digital power conversion 4.0 834 KB
AN4365 AN4365: Using STM32F4 MCU power modes with best dynamic efficiency 2.0 824 KB
AN4031 AN4031: Using the STM32F2, STM32F4 and STM32F7 Series DMA controller 3.0 1 MB
AN4655 AN4655: Virtually increasing the number of serial communication peripherals in STM32 applications 1.1 338 KB
Technical Notes & Articles
Description Version Size
TN1163 TN1163: Description of WLCSP for microcontrollers and recommendations for its use 4.0 1 MB
TN0830 TN0830: How to use EWARM 6.2x with projects built with EWARM 6.1 and previous versions 1.2 97 KB
TN0516 TN0516: Overview of the STM32F0x/F100xx/F103xx and STM32F2xx/F30x/F4xx MCUs PMSM single/dual FOC SDK V4.0 4.0 285 KB
TN1204 TN1204: Tape and reel shipping media for STM32 microcontrollers in BGA packages 2.1 745 KB
TN1205 TN1205: Tape and reel shipping media for STM8 and STM32 microcontrollers in FPN packages 3.0 753 KB
TN1206 TN1206: Tape and reel shipping media for STM8 and STM32 microcontrollers in QFP packages 3.0 830 KB
TN1207 TN1207: Tape and reel shipping media for STM8 and STM32 microcontrollers in SO packages 1.0 755 KB
TN1208 TN1208: Tape and reel shipping media for STM8 and STM32 microcontrollers in TSSOP and SSOP packages 1.0 743 KB
Reference Manuals
Description Version Size
RM0090 RM0090: STM32F405/415, STM32F407/417, STM32F427/437 and STM32F429/439 advanced ARM®-based 32-bit MCUs 13.0 20 MB
Programming Manuals
Description Version Size
PM0214 PM0214: STM32F3, STM32F4 and STM32L4 Series Cortex®-M4 programming manual 5.0 3 MB
Errata Sheets
Description Version Size
ES0206 ES0206: STM32F427/437 and STM32F429/439 line limitations 9.0 520 KB

HW Model & CAD Libraries

HW Model & CAD Libraries
Description Version Size
STM32F427/437 and STM32F429/439 Boundary Scan Description Language (BSDL) files 1.0 56 KB
STM32F427/437 and STM32F429/439 IBIS models 1.0 19 MB

Presentations & Training Material

Description Version Size
STM32 - 32-bit ARM Cortex-M MCUs 3.0 1 MB
STM32 Embedded Software overview 2.3.0 777 KB
STM32 and STM8 Functional Safety Packages 2 1 MB
STM32 and STM8 embedded software solutions 2.0 2 MB

Publications and Collaterals

Description Version Size
Get ready for the largest IoT development ecosystem 16.08 721 KB
STM32 Nucleo boards 16.07 1 MB
STM32 for makers Releasing your creativity 16.09 1 MB
Description Version Size
STM32™ 32-bit MCU family - Leading supplier of ARM® Cortex®-M microcontrollers 16.02 1 MB

Quality & Reliability

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

Tools and Software

Development Tools
Embedded Software
Evaluation Tools
Hardware Development Tools
Software Development Tools
MCUs Embedded Software
Product Evaluation Tools

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
STM32F429ZIY6JTR WLCSP 143 BALLS DIE 419 P 0.4MM Tape And Reel -40 85 Active 7.911 10000 NEC 3A991A2 TAIWAN MORE INFO
STM32F429ZIT6 LQFP 144 20x20x1.4 Tray -40 85 Active 8.546 10000 NEC 3A991A2 PHILIPPINES MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
STM32F429ZIY6TR WLCSP 143 BALLS DIE 419 P 0.4MM Tape And Reel -40 85 Active 6.879 10000 NEC 3A991A2 TAIWAN MORE INFO
STM32F429ZIT6TR LQFP 144 20x20x1.4 Tape And Reel -40 85 Active 8.546 10000 NEC 3A991A2 PHILIPPINES MORE INFO

(*) 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**
STM32F429ZIY6JTR ActiveWLCSP 143 BALLS DIE 419 P 0.4MMIndustrialEcopack2
STM32F429ZIT6 ActiveLQFP 144 20x20x1.4IndustrialEcopack2 0 0
STM32F429ZIY6TR ActiveWLCSP 143 BALLS DIE 419 P 0.4MMIndustrialEcopack2 0 0
STM32F429ZIT6TR ActiveLQFP 144 20x20x1.4IndustrialEcopack2

(**) 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.