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High-performance and DSP with DP-FPU, Arm Cortex-M7 MCU with 128 Kbytes Flash, 564 Kbytes RAM, 550 MHz CPU, L1 cache, external memory interface, SMPS, subset of peripherals including a Crypto accelerator

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Product overview


STM32H730xB devices are based on the high-performance Arm® Cortex®-M7 32-bit RISC core operating at up to 550 MHz. The Cortex® -M7 core features a floating-point unit (FPU) which supports Arm® double-precision (IEEE 754 compliant) and single-precision data-processing instructions and data types. The Cortex -M7 core includes 32 Kbytes of instruction cache and 32 Kbytes of data cache. STM32H730xB devices support a full set of DSP instructions and a memory protection unit (MPU) to enhance application security.

STM32H730xB devices incorporate high-speed embedded memories with 128 Kbytes of flash memory, up to 564 Kbytes of RAM (including 192 Kbytes that can be shared between ITCM and AXI, plus 64 Kbytes exclusively ITCM, plus 128 Kbytes exclusively AXI, 128 Kbyte DTCM, 48 Kbytes AHB and 4 Kbytes of backup RAM), as well as an extensive range of enhanced I/Os and peripherals connected to APB buses, AHB buses, 2x32-bit multi-AHB bus matrix and a multilayer AXI interconnect supporting internal and external memory access. To improve application robustness, all memories feature error code correction (one error correction, two error detections).

The devices embed peripherals allowing mathematical/arithmetic function acceleration (CORDIC coprocessor for trigonometric functions and FMAC unit for filter functions). All the devices offer three ADCs, two DACs, two operational amplifiers, two ultra-low-power comparators, a low-power RTC, four general-purpose 32-bit timers, 12 general-purpose 16-bit timers including two PWM timers for motor control, five low-power timers, a true random number generator (RNG), and a cryptographic acceleration cell, and a HASH processor. The devices support four digital filters for external sigma-delta modulators (DFSDM). They also feature standard and advanced communication interfaces.

  • All 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
      • 128 Kbytes of embedded flash memory with ECC
      • SRAM: total 564 Kbytes all with ECC, including 128 Kbytes of data TCM RAM for critical real-time 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 resolution
    • 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
      • 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 double-interleaved 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, SHA-1, SHA-2), HMAC
      • 2x OTFDEC AES-128 in CTR mode for Octo-SPI memory encryption/decryption
    • True random number generator
    • CRC calculation unit
    • RTC with subsecond accuracy and hardware calendar
    • ROP, PC-ROP, tamper detection, secure firmware upgrade support
    • 96-bit unique ID
    • All packages are ECOPACK2 compliant

Circuit Diagram

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STMicroelectronics - STM32H730AB

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
UFBGA 169 7x7x0.6 P 0.5 mm Industrial Ecopack2



UFBGA 169 7x7x0.6 P 0.5 mm

Material Declaration**:


Marketing Status



UFBGA 169 7x7x0.6 P 0.5 mm



RoHS Compliance Grade


(**) The Material Declaration forms available on 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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