Product overview
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.
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All 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
- VBAT supply 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
- Analog
- One 12-bit ADC, up to 2.5 MSPS
- One 12-bit dual-channel DAC
- One ultra-low-power comparator
- One operational amplifier (7 MHz bandwidth)
- One digital temperature sensor
- Up to 11 timers
- Six 16-bit (including two low-power 16-bit timer available in Stop mode) and one 32-bit timer
- Two watchdogs
- One SysTick timer
- RTC with hardware calendar, alarms, and calibration
- Communication interfaces
- Up to two I2Cs FM + interfaces (SMBus/PMBus®)
- Up to two I3Cs shared with I2C
- Up to three USARTs (ISO7816 interface, LIN, IrDA, modem control) and one LPUART
- Up to three SPIs including three muxed with full-duplex I2S for audio class accuracy via internal audio PLL or external clock and up to three additional SPI from three USART when configured in synchronous mode
- One FDCAN
- One USB 2.0 full-speed host and device
- Two DMA controllers to offload the CPU
- Security
- HASH (SHA-1, SHA-2), HMAC
- True random generator
- 96-bit unique ID
- Active tamper
- Debug
- Authenticated debug
- Serial wire-debug (SWD) and JTAG interfaces
- ECOPACK2 compliant packages
- Core
Circuit Diagram
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STMicroelectronics - STM32H503KB
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All resources
| Resource title | Version | Latest update |
|---|
System View Description (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.4 | 12 Aug 2024 | 12 Aug 2024 |
IBIS models (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 2.0 | 01 Jul 2024 | 01 Jul 2024 |
BSDL files (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 2.0 | 09 Sep 2024 | 09 Sep 2024 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| STM32H503KBU6 | Active | UFQFPN 32 5x5x0.55 mm | Industrial | Ecopack2 | |
| STM32H503KBU7 | Active | UFQFPN 32 5x5x0.55 mm | Industrial | Ecopack2 | |
| STM32H503KBU7TR | Active | UFQFPN 32 5x5x0.55 mm | Industrial | Ecopack2 | |
STM32H503KBU6
Package:
UFQFPN 32 5x5x0.55 mmMaterial Declaration**:
PDFSTM32H503KBU7
Package:
UFQFPN 32 5x5x0.55 mmMaterial Declaration**:
STM32H503KBU7TR
Package:
UFQFPN 32 5x5x0.55 mmMaterial Declaration**:
(**) The Material Declaration forms available on st.com 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.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | D/A Converters (typ) (12-bit) | Timers (typ) (16-bit) | Timers (typ) (32-bit) | Number of Channels (typ) | SMPS | Number of Channels (typ) | UART (typ) | I/Os (High Current) | Integrated op-amps | Comparator | SPI (typ) | USART (typ) | Number of Channels (typ) | I2S (typ) | Advanced Motor Control Timers | CAN (2.0) | CAN (FD) | Ethernet | ||
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| STM32H503KBU7TR | | | distributors No availability of distributors reported, please contact our sales office |
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| STM32H503KBU6 | | | distributors No availability of distributors reported, please contact our sales office |
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| STM32H503KBU7 | | | distributors No availability of distributors reported, please contact our sales office |
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STM32H503KBU7TR Active
STM32H503KBU6 Active
STM32H503KBU7 Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors