# STM32H503CBT7TR (Component)

## Description

32\-bit Arm Cortex\-M33 Microcontroller \(MCU\) – High\-performance microcontroller with a 250 MHz Cortex\-M33 CPU, 128 KB Flash, and 32 KB SRAM, designed for embedded control and processing applications\. The STMicroelectronics STM32H503CBT7TR integrates a 12\-bit ADC, dual\-channel 12\-bit DAC, I²C/I3C, SPI, USART, FDCAN, and USB 2\.0 Full\-Speed interfaces, along with a comparator, operational amplifier, timers, RTC, DMA, and hardware security features\. It operates from 1\.71 V to 3\.6 V and is housed in a 48\-pin LQFP \(7 × 7 mm\) package\.

\#STMicroelectronics \#STM32H503 \#STM32H503CBT7TR \#CortexM33 \#Microcontroller \#MCU \#128KBFlash \#32KBSRAM \#ADC \#DAC \#I3C \#USB \#FDCAN \#EmbeddedSystems \#PCBDesign

## Component Details

- **Owner:** silicon\-yard
- **Created:** 8/26/2026
- **Last Updated:** 8/26/2026
- **Visibility:** Public
- **Manufacturer Part Number:** STM32H503CBT7TR
- **Part Type:** Integrated Circuits
- **Manufacturer Name:** STMicroelectronics
- **Symbol Style:** parametric\-v1
- **Datasheet URL:** https://www\.st\.com/resource/en/datasheet/stm32h503eb\.pdf
- **Used in:** 1 project

## Distributor Pricing (qty 1)

*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*

| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/stm32h503cbt7tr/stmicroelectronics.html?utm_currency=USD&region=asia) | N/A | N/A |
| [Digi\-Key](https://www.digikey.com/en/products/detail/stmicroelectronics/STM32H503CBT7TR/26254227) | N/A | N/A |
| [Mouser](https://www.mouser.com/en/ProductDetail/STMicroelectronics/STM32H503CBT7TR?qs=a2MtRaTmNORhkR9YwW4TMA%253D%253D) | N/A | N/A |

- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** STMicroelectronics
- **MPN:** STM32H503CBT7TR
- **Mount Type:** PCB
- **Package / Case Code:** 48\-LQFP
- **Pin Count:** 48
- **Logic Function:** AND
## Pins

| Pin | Name | Type |
|-----|------|------|
| 9 | VDDA/VREF\+ | Unspecified |
| 22 | VCAP\_1 | Unspecified |
| 46 | VCAP\_2 | Unspecified |
| 24 | VDD\_1 | Unspecified |
| 1 | VBAT | Unspecified |
| 48 | VDD\_3 | Unspecified |
| 36 | VDD\_2 | Unspecified |
| 5 | PH0\-OSC\_IN | Unspecified |
| 6 | PH1\-OSC\_OUT | Unspecified |
| 3 | PC14\-OSC32\_IN | Unspecified |
| 4 | PC15\-OSC32\_OUT | Unspecified |
| 44 | BOOT0 | Unspecified |
| 7 | NRST | Unspecified |
| 16 | PA6 | Unspecified |
| 11 | PA1 | Unspecified |
| 12 | PA2 | Unspecified |
| 15 | PA5 | Unspecified |
| 14 | PA4 | Unspecified |
| 17 | PA7 | Unspecified |
| 13 | PA3 | Unspecified |
| 10 | PA0 | Unspecified |
| 32 | PA11 | Unspecified |
| 31 | PA10 | Unspecified |
| 38 | PA15 | Unspecified |
| 29 | PA8 | Unspecified |
| 34 | PA13 | Unspecified |
| 37 | PA14 | Unspecified |
| 33 | PA12 | Unspecified |
| 30 | PA9 | Unspecified |
| 42 | PB6 | Unspecified |
| 39 | PB3 | Unspecified |
| 20 | PB2 | Unspecified |
| 18 | PB0 | Unspecified |
| 19 | PB1 | Unspecified |
| 40 | PB4 | Unspecified |
| 43 | PB7 | Unspecified |
| 41 | PB5 | Unspecified |
| 27 | PB14 | Unspecified |
| 28 | PB15 | Unspecified |
| 21 | PB10 | Unspecified |
| 25 | PB12 | Unspecified |
| 45 | PB8 | Unspecified |
| 26 | PB13 | Unspecified |
| 2 | PC13 | Unspecified |
| 8 | VSSA/VREF\- | Unspecified |
| 23 | VSS\_1 | Unspecified |
| 47 | VSS\_3 | Unspecified |
| 35 | VSS\_2 | Unspecified |

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