HighEnd MCU

The STM32F437xx and STM32F439xx 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 STM32F437xx and STM32F439xx 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.a true random number generator (RNG), and a cryptographic acceleration cell. They also feature standard and advanced communication interfaces.

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

V_BATsupply 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 × I²C 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 I²S 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

Cryptographic acceleration: hardware acceleration for AES 128, 192, 256, Triple DES, HASH (MD5, SHA-1, SHA-2), and HMAC

True random number generator

CRC calculation unit

RTC: subsecond accuracy, hardware calendar

96-bit unique ID