STM32H735IGK6

Arm® Cortex®-M7 32-bit 550 MHz MCU, 1 MB Flash, 564 KB RAM,
Ethernet, USB, 3x FD-CAN, Graphics, 2x1 6-bit ADCs, crypto/hash

Features
Includes ST state-of-the-art patented
technology
Core
• 32-bit Arm® Cortex®-M7 CPU with DP-FPU, L1
cache: 32-Kbyte data cache and 32-Kbyte
instruction cache allowing 0-wait state
execution from embedded Flash memory and
external memories, frequency up to 550 MHz,
MPU, 1177 DMIPS/2.14 DMIPS/MHz
(Dhrystone 2.1), and DSP instructions
Memories
• 1 Mbyte of embedded Flash memory with ECC
• SRAM: total 564 Kbytes all with ECC, including
128 Kbytes of data TCM RAM for critical realtime data + 432 Kbytes of system RAM (up to
256 Kbytes can remap on instruction TCM
RAM for critical real time instructions) +
4 Kbytes of backup SRAM (available in the
lowest-power modes)
• Flexible external memory controller with up to
24-bit data bus: SRAM, PSRAM,
SDRAM/LPSDR SDRAM, NOR/NAND
memories
• 2 x Octo-SPI interface with XiP and on-the-fly
decryption support
• 2 x SD/SDIO/MMC interface
• Bootloader with security services support (SFI
and SB-SFU)
Graphics
• Chrom-ART Accelerator graphical hardware
accelerator enabling enhanced graphical user
interface to reduce CPU load
• LCD-TFT controller supporting up to XGA

Clock, reset and supply management
• 1.62 V to 3.6 V application supply and I/O
• POR, PDR, PVD and BOR
• Dedicated USB power
• Embedded DCDC and LDO regulator
(*)VFQFPN68 variant is DCDC only
• Internal oscillators: 64 MHz HSI, 48 MHz
HSI48, 4 MHz CSI, 32 kHz LSI
• External oscillators: 4-50 MHz HSE,
32.768 kHz LSE
Low power
• Sleep, Stop and Standby modes
• VBAT supply for RTC, 32×32-bit backup
registers
Analog
• 2×16-bit ADC, up to 3.6 MSPS in 16-bit: up to
22 channels and 7.2 MSPS in doubleinterleaved mode

• 1 x 12-bit ADC, up to 5 MSPS in 12-bit, up to 12
channels
• 2 x comparators
• 2 x operational amplifier GBW = 8 MHz
• 2× 12-bit D/A converters
Digital filters for sigma delta modulator
(DFSDM)
• 8 channels/4 filters
4 DMA controllers to offload the CPU
• 1 × MDMA with linked list support
• 2 × dual-port DMAs with FIFO
• 1 × basic DMA with request router capabilities
24 timers
• Seventeen 16-bit (including 5 x low power
16-bit timer available in stop mode) and four
32-bit timers, each with up to 4 IC/OC/PWM or
pulse counter and quadrature (incremental)
encoder input
• 2x watchdogs, 1x SysTick timer
Debug mode
• SWD and JTAG interfaces
• 2-Kbyte embedded trace buffer
Up to 128 I/O ports with interrupt
capability
Up to 35 communication interfaces
• Up to 5 × I2C FM+ interfaces
(SMBus/PMBus™)
• Up to 5 USARTs/5 UARTs (ISO7816 interface,
LIN, IrDA, modem control) and 1 x LPUART
• Up to 6 SPIs with 4 with muxed duplex I2S for
audio class accuracy via internal audio PLL or
external clock and up to 5 x SPI (from 5 x
USART when configured in synchronous
mode

• 2x SAI (serial audio interface)
• 1× FD/TT-CAN and 2x FD-CAN
• 8- to 14-bit camera interface
• 16-bit parallel slave synchronous interface
• SPDIF-IN interface
• HDMI-CEC
• Ethernet MAC interface with DMA controller
• USB 2.0 high-speed/full-speed
device/host/OTG controller with dedicated
DMA, on-chip FS PHY and ULPI for external
HS PHY
• SWPMI single-wire protocol master I/F
• MDIO slave interface
Mathematical acceleration
• CORDIC for trigonometric functions
acceleration
• FMAC: Filter mathematical accelerator
Digital temperature sensor
Cryptographic/HASH acceleration
• AES 128, 192, 256, TDES, HASH (MD5, SHA1, SHA-2), HMAC
• 2x OTFDEC AES-128 in CTR mode for OctoSPI memory encryption/decryption
True random number generator
CRC calculation unit
RTC with sub-second accuracy and
hardware calendar
ROP, PC-ROP, tamper detection, secure
firmware upgrade support
96-bit unique ID
All packages are ECOPACK2 compliant