STM32H503CB Series

High-performance, Arm Cortex-M33, MCU with 128-Kbyte Flash, 32-Kbyte RAM, 250 MHz CPU

Catalog

High-performance, Arm Cortex-M33, MCU with 128-Kbyte Flash, 32-Kbyte RAM, 250 MHz CPU

Part	Oscillator Type	Program Memory Size	Mounting Type	Core Size	Program Memory Type	Number of I/O	Data Converters	Package / Case	Core Processor	Supplier Device Package	Speed	Connectivity	Peripherals	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Operating Temperature [Max]	Operating Temperature [Min]
STMicroelectronics STM32H503CBT6	External Internal	128 KB	Surface Mount	32-Bit	FLASH	35	A/D 10x12b SAR D/A 1x12b	48-LQFP	ARM® Cortex®-M33	48-LQFP (7x7)	250 MHz	CANbus FIFO I2C IrDA LINbus SCI SDIO SMBus SPI UART/USART USB	Brown-out Detect/Reset DMA I2S PDR POR PWM SHA TRNG Voltage Detect WDT	3.6 V	1.71 V	85 °C	-40 °C
STMicroelectronics STM32H503CBU6	External Internal	128 KB	Surface Mount	32-Bit	FLASH	35	A/D 10x12b SAR D/A 1x12b	48-UFQFN Exposed Pad	ARM® Cortex®-M33	48-UFQFPN (7x7)	250 MHz	CANbus FIFO I2C IrDA LINbus SCI SDIO SMBus SPI UART/USART USB	Brown-out Detect/Reset DMA I2S PDR POR PWM SHA TRNG Voltage Detect WDT	3.6 V	1.71 V	85 °C	-40 °C
STMicroelectronics STM32H503KBU6TR	External Internal	128 KB	Surface Mount	32-Bit	FLASH	24	A/D 10x12b SAR D/A 1x12b	32-UFQFN Exposed Pad	ARM® Cortex®-M33	32-UFQFPN (5x5)	250 MHz	CANbus FIFO I2C IrDA LINbus SCI SDIO SMBus SPI UART/USART USB	Brown-out Detect/Reset DMA I2S PDR POR PWM SHA TRNG Voltage Detect WDT	3.6 V	1.71 V	85 °C	-40 °C
STMicroelectronics STM32H503RBT7	External Internal	128 KB	Surface Mount	32-Bit	FLASH	49	A/D 16x12b SAR D/A 1x12b	64-LQFP	ARM® Cortex®-M33	64-LQFP (10x10)	250 MHz	CANbus FIFO I2C IrDA LINbus SCI SDIO SMBus SPI UART/USART USB	Brown-out Detect/Reset DMA I2S PDR POR PWM SHA TRNG Voltage Detect WDT	3.6 V	1.71 V	105 °C	-40 °C

Catalog

High-performance, Arm Cortex-M33, MCU with 128-Kbyte Flash, 32-Kbyte RAM, 250 MHz CPU

Key Features

• Core

- Arm®Cortex®-M33 CPU with FPU, frequency up to 250 MHz, MPU, 375 DMIPS (Dhrystone 2.1), and DSP instructions

• ART Accelerator

- 8-Kbyte instruction cache allowing 0-wait-state execution from flash memory (frequency up to 250 MHz)

• Benchmarks

- 1.5 DMIPS/MHz (Drystone 2.1)

- 1023 CoreMark®(4.092 CoreMark®/MHz)

• Memories

- 128 Kbytes of embedded flash memory with ECC, two banks of read-while-write

- 2-Kbyte OTP (one-time programmable)

- 32-Kbyte SRAM with ECC

- 2 Kbytes of backup SRAM (available in the lowest power modes)

• Clock, reset, and supply management

- 1.71 V to 3.6 V application supply and I/O

- POR, PDR, PVD, and BOR

- Embedded regulator (LDO)

- Internal oscillators: 64 MHz HSI, 48 MHz HSI48, 4 MHz CSI, 32 kHz LSI

- Two PLLs for system clock, USB, audio, and ADC

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

• Low-power modes

- Sleep, Stop and Standby modes

- VBATsupply for RTC, 32 backup registers (32 bits)

• General-purpose inputs/outputs

- Up to 49 fast I/Os with interrupt capability (most 5 V tolerant)

- Up to 9 I/Os with independent supply down to 1.08 V

Description

The STM32H503xx devices are a high-performance microcontrollers family (STM32H5 series) based on the high-performance Arm®Cortex®-M33 32-bit RISC core. They operate at a frequency of up to 250 MHz. The Cortex®-M33 core features a single-precision floating-point unit (FPU) that supports all the Arm®single-precision data-processing instructions and all the data types. The Cortex®-M33 core also implements a full set of DSP (digital signal processing) instructions and a memory protection unit (MPU) that enhances the application security. The devices embed high-speed memories (128 Kbytes of dual bank flash memory and 32 Kbytes of SRAM), and an extensive range of enhanced I/Os and peripherals connected to three APB buses, three AHB buses, and a 32-bit multi-AHB bus matrix. The devices feature several protection mechanisms for embedded flash memory and SRAM: secure life cycle management, write protection and hide protection areas. The devices embed several peripherals reinforcing security: a HASH hardware accelerator and a true random number generator. The devices offer active tamper detection and protection against transient and environmental perturbation attacks. It is done thanks to several internal monitoring that generate a secret data erase in case of an attack. The devices offer a fast 12-bit ADC, two DAC channels, an OPAMP, a comparator, a low-power RTC, one 32-bit general-purpose timer, one 16-bit PWM timer dedicated to motor control, one 16-bit general-purpose timer, two 16-bit basic timers and two 16-bit low-power timers. The devices also feature standard and advanced communication interfaces such as: two I²Cs, two I3Cs shared with I²C, three SPIs with muxed full-duplex I2S, three USARTs and one low-power UART, one FDCAN, and one USB full-speed. The devices operate in the - 40 to + 85 °C/105 °C, and up to 125 °C at low dissipation (+130 °C junction) temperature ranges from a 1.71 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications. Some independent power supplies are supported like an analog independent supply input for ADC, DACs, COMP and OPAMP, and a dedicated supply input for some GPIOs. A VBAT input is available for connecting a backup battery. This battery preserves the RTC functionality and backup 32x 32-bit registers and 2-Kbyte SRAM. The devices offer five packages from 25-pin to 64-pin.