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This is information on a product in full production.

September 2013 DocID024030 Rev 2 1/208

STM32F427xx

STM32F429xx

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

Datasheet - production data

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,

Compact Flash/NOR/NAND memories

• LCD parallel interface, 8080/6800 modes

• LCD-TFT controller up to SVGA resolution with

dedicated Chrom-ART Accelerator™ for

enhanced graphic content creation (DMA2D)

• Clock, reset and supply management

– 1.8 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

–V

BAT

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 Embedded 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 × I

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 I

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

• 96-bit unique ID

• RTC: subsecond accuracy, hardware calendar

Table 1. Device summary

Reference Part number

STM32F427xx

STM32F427VG, STM32F427ZG, STM32F427IG,

STM32F427VI, STM32F427ZI, STM32F427II

STM32F429xx

STM32F429VG, STM32F429ZG, STM32F429IG,

STM32F429VI, STM32F429ZI, STM32F429II,

STM32F429BG, STM32F429BI, STM32F429NI,

STM32F429NG

LQFP100 (14 × 14 mm)

LQFP144 (20 × 20 mm)

UFBGA176 (10 × 10 mm)

LQFP176 (24 × 24 mm)

LQFP208 (28 x 28 mm)

TFBGA216 (13 x 13 mm)

&"'!

WLCSP143

www.st.com

Contents STM32F427xx STM32F429xx

2/208 DocID024030 Rev 2

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.1 Full compatibility throughout the family . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3 Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1 ARM

Cortex™-M4 with FPU and embedded Flash and SRAM . . . . . . . 20

3.2 Adaptive real-time memory accelerator (ART Accelerator™) . . . . . . . . . 20

3.3 Memory protection unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.4 Embedded Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.5 CRC (cyclic redundancy check) calculation unit . . . . . . . . . . . . . . . . . . . 21

3.6 Embedded SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.7 Multi-AHB bus matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.8 DMA controller (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.9 Flexible memory controller (FMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.10 LCD-TFT controller (available only on STM32F429xx) . . . . . . . . . . . . . . 23

3.11 Chrom-ART Accelerator™ (DMA2D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.12 Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . . . . 24

3.13 External interrupt/event controller (EXTI) . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.14 Clocks and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.15 Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.16 Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.17 Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.17.1 Internal reset ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.17.2 Internal reset OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.18 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.18.1 Regulator ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.18.2 Regulator OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.18.3 Regulator ON/OFF and internal reset ON/OFF availability . . . . . . . . . . 31

3.19 Real-time clock (RTC), backup SRAM and backup registers . . . . . . . . . . 31

3.20 Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3.21 V

BAT

operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

DocID024030 Rev 2 3/208

STM32F427xx STM32F429xx Contents

3.22 Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.22.1 Advanced-control timers (TIM1, TIM8) . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.22.2 General-purpose timers (TIMx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.22.3 Basic timers TIM6 and TIM7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.22.4 Independent watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.22.5 Window watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.22.6 SysTick timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.23 Inter-integrated circuit interface (I

C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.24 Universal synchronous/asynchronous receiver transmitters (USART) . . 36

3.25 Serial peripheral interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

3.26 Inter-integrated sound (I

S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

3.27 Serial Audio interface (SAI1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

3.28 Audio PLL (PLLI2S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

3.29 Audio and LCD PLL(PLLSAI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

3.30 Secure digital input/output interface (SDIO) . . . . . . . . . . . . . . . . . . . . . . . 39

3.31 Ethernet MAC interface with dedicated DMA and IEEE 1588 support . . . 39

3.32 Controller area network (bxCAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

3.33 Universal serial bus on-the-go full-speed (OTG_FS) . . . . . . . . . . . . . . . . 40

3.34 Universal serial bus on-the-go high-speed (OTG_HS) . . . . . . . . . . . . . . . 40

3.35 Digital camera interface (DCMI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3.36 Random number generator (RNG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3.37 General-purpose input/outputs (GPIOs) . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3.38 Analog-to-digital converters (ADCs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3.39 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

3.40 Digital-to-analog converter (DAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

3.41 Serial wire JTAG debug port (SWJ-DP) . . . . . . . . . . . . . . . . . . . . . . . . . . 42

3.42 Embedded Trace Macrocell™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4 Pinouts and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5 Memory mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

6.1 Parameter conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

6.1.1 Minimum and maximum values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Contents STM32F427xx STM32F429xx

4/208 DocID024030 Rev 2

6.1.2 Typical values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

6.1.3 Typical curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

6.1.4 Loading capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

6.1.5 Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

6.1.6 Power supply scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

6.1.7 Current consumption measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

6.2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

6.3 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

6.3.1 General operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

6.3.2 VCAP1/VCAP2 external capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

6.3.3 Operating conditions at power-up / power-down (regulator ON) . . . . . . 94

6.3.4 Operating conditions at power-up / power-down (regulator OFF) . . . . . 94

6.3.5 Embedded reset and power control block characteristics . . . . . . . . . . . 95

6.3.6 Over-drive switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

6.3.7 Supply current characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

6.3.8 Wakeup time from low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . 112

6.3.9 External clock source characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 113

6.3.10 Internal clock source characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 117

6.3.11 PLL characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

6.3.12 PLL spread spectrum clock generation (SSCG) characteristics . . . . . 122

6.3.13 Memory characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

6.3.14 EMC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

6.3.15 Absolute maximum ratings (electrical sensitivity) . . . . . . . . . . . . . . . . 128

6.3.16 I/O current injection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

6.3.17 I/O port characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

6.3.18 NRST pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

6.3.19 TIM timer characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

6.3.20 Communications interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

6.3.21 12-bit ADC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

6.3.22 Temperature sensor characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

6.3.23 V

BAT

monitoring characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

6.3.24 Embedded reference voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

6.3.25 DAC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

6.3.26 FMC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

6.3.27 Camera interface (DCMI) timing specifications . . . . . . . . . . . . . . . . . . 181

6.3.28 LCD-TFT controller (LTDC) characteristics . . . . . . . . . . . . . . . . . . . . . 182

6.3.29 SD/SDIO MMC card host interface (SDIO) characteristics . . . . . . . . . 184

DocID024030 Rev 2 5/208

STM32F427xx STM32F429xx Contents

6.3.30 RTC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

7 Package characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

7.1 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

7.2 Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

8 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Appendix A Application block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

A.1 USB OTG full speed (FS) interface solutions . . . . . . . . . . . . . . . . . . . . . 202

A.2 USB OTG high speed (HS) interface solutions . . . . . . . . . . . . . . . . . . . . 204

A.3 Ethernet interface solutions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

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