STM32H7B3AI

概要

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製品概要

概要

STM32H7B3xI devices are based on the high-performance Arm^® Cortex^®-M7 32-bit RISC core operating at up to 280 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. STM32H7B3xI devices support a full set of DSP instructions and a memory protection unit (MPU) to enhance application security.

STM32H7B3xI devices incorporate high-speed embedded memories with a dual-bank flash memory of 2 Mbytes, around 1.4 Mbyte of RAM (including 192 Kbytes of TCM RAM, 1.18 Mbytes of user SRAM and 4 Kbytes of backup SRAM), as well as an extensive range of enhanced I/Os and peripherals connected to four APB buses, three AHB buses, a 32-bit multi-AHB bus matrix and a multi layer AXI interconnect supporting internal and external memory access.

All the devices offer two ADCs, two DACs (one dual and one single DAC), two ultra-low power comparators, a low-power RTC, 12 general-purpose 16-bit timers, two PWM timers for motor control, three low-power timers, a true random number generator (RNG), and a cryptographic acceleration cell and a HASH processor. The devices support nine digital filters for external sigma delta modulators (DFSDM). They also feature standard and advanced communication interfaces.

特徴
Includes ST state-of-the-art patented technology

コア

32-bit Arm^® Cortex^®-M7 core with double-precision FPU and L1 cache: 16 Kbytes of data and 16 Kbytes of instruction cache allowing to fill one cache line in a single access from the 128-bit embedded flash memory; frequency up to 280 MHz, MPU, 599 DMIPS/ 2.14 DMIPS/MHz (Dhrystone 2.1), and DSP instructions

メモリ

2 Mbytes of flash memory with read while write support, plus 1 Kbyte of OTP

~1.4 Mbytes of RAM: 192 Kbytes of TCM RAM (inc. 64 Kbytes of ITCM RAM + 128 Kbytes of DTCM RAM for time critical routines), 1.18 Mbytes of user SRAM, and 4 Kbytes of SRAM in Backup domain

2x Octo-SPI memory interfaces with on-the-fly decryption, I/O multiplexing and support for serial PSRAM/NOR, Hyper RAM/flash frame formats, running up to 140 MHz in SRD mode and up to 110 MHz in DTR mode

Flexible external memory controller with up to 32-bit data bus:
SRAM, PSRAM, NOR flash memory clocked up to 125 MHz in Synchronous mode

SDRAM/LPSDR SDRAM,

8/16-bit NAND flash memory

CRC calculation unit

セキュリティ

ROP, PC-ROP, active tamper, secure firmware upgrade support, Secure access mode

General-purpose input/outputs

Up to 168 I/O ports with interrupt capability
Fast I/Os capable of up to 133 MHz

Up to 164 5 V-tolerant I/Os

Low-power consumption

Stop: down to 32 µA with full RAM retention

Standby: 2.8 µA (Backup SRAM OFF, RTC/LSE ON, PDR OFF)

V_BAT: 0.8 µA with RTC and LSE ON

Clock management

Internal oscillators: 64 MHz HSI, 48 MHz RC, 4 MHz CSI, 32 kHz LSI

External oscillators: 4-50 MHz HSE, 32.768 kHz LSE

3× PLLs (1 for the system clock, 2 for kernel clocks) with fractional mode

Reset and power management

2 separate power domains, which can be independently clock gated to maximize power efficiency:
CPU domain (CD) for Arm^® Cortex^® core and its peripherals , which can be independently switched in Retention mode

mart run domain (SRD) for reset and clock control, power management and some peripherals

1.62 to 3.6 V application supply and I/Os

POR, PDR, PVD and BOR

Dedicated USB power embedding a 3.3 V internal regulator to supply the internal PHYs

Dedicated MMC power supply

High power efficiency SMPS step-down converter regulator to directly supply V_CORE or an external circuitry

Embedded regulator (LDO) with configurable scalable output to supply the digital circuitry

Voltage scaling in Run and Stop mode

Backup regulator (~0.9 V)

Low-power modes: Sleep, Stop and Standby

V_BAT battery operating mode with charging capability

CPU and domain power state monitoring pins

Interconnect matrix
5 DMA controllers to unload the CPU

1× high-speed general-purpose master direct memory access controller (MDMA)

2× dual-port DMAs with FIFO and request router capabilities

1× basic DMA with request router capabilities

1x basic DMA dedicated to DFSDM

Up to 35 communication peripherals

4× I2C FM+ interfaces (SMBus/PMBus)

5× USART/5x UARTs (ISO7816 interface, LIN, IrDA, modem control) and 1x LPUART

6× SPIs, including 4 with muxed full-duplex I2S audio class accuracy via internal audio PLL or external clock and 1 x SPI/I2S in LP domain (up to 125 MHz)

2x SAIs (serial audio interface)

SPDIFRX interface

SWPMI single-wire protocol master I/F

MDIO Slave interface

2× SD/SDIO/MMC interfaces (up to 133 MHz)

2× CAN controllers: 2 with CAN FD, 1 with time-triggered CAN (TT-CAN)

1× USB OTG interfaces (1HS/FS)

HDMI-CEC

8- to 14-bit camera interface up to 80 MHz

8-/16-bit parallel synchronous data input/output slave interface (PSSI)

11 analog peripherals

2× ADCs with 16-bit max. resolution (up to 24 channels, up to 3.6 MSPS)

1× analog and 1x digital temperature sensors

1× 12-bit single-channel DAC (in SRD domain) + 1× 12-bit dual-channel DAC

2× ultra-low-power comparators

2× operational amplifiers (8 MHz bandwidth)

2× digital filters for sigma delta modulator (DFSDM), 1x with 8 channels/8 filters and 1x in SRD domain with 2 channels/1 filter

Graphics

LCD-TFT controller up to XGA resolution

Chrom-ART graphical hardware Accelerator (DMA2D) to reduce CPU load

Hardware JPEG Codec

Chrom-GRC™ (GFXMMU)

Up to 19 timers and 2 watchdogs

2× 32-bit timers with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input (up to 280 MHz)

2× 16-bit advanced motor control timers (up to 280 MHz)

10× 16-bit general-purpose timers (up to 280 MHz)

3× 16-bit low-power timers (up to 280 MHz)

2× watchdogs (independent and window)

1× SysTick timer

RTC with sub-second accuracy and hardware calendar

Cryptographic acceleration

AES chaining modes: ECB,CBC,CTR,GCM,CCM for 128, 192 or 256

HASH (MD5, SHA-1, SHA-2), HMAC

2x OTFDEC AES-128 in CTR mode for Octo-SPI memory encryption/decryption

1x 32-bit, NIST SP 800-90B compliant , true random generator

Debug mode

SWD & JTAG interfaces

4 Kbytes Embedded Trace Buffer

96-bit unique ID
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