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GD32E251
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Overview
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Product selector
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Documentation
Overview
● Arm® Cortex®-M23@72MHz
● 64KB Flash,8KB SRAM
● 2xUSART，3xI2C，1xI2S，2XSPI
● 1xADC, 4xDAC，1xCOMP
Product selector
6 Results
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Part No
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Core
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Series
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Package
QFN32
QFN24
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Max Speed (MHz)
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Flash (Bytes)
16K
32K
64K
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SRAM (Bytes)
4K
6K
8K
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I/O
up to 29
up to 20
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GPTM (32bit)
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GPTM (16bit)
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Advanced TM (16bit)
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HRTM
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CPTM (16bit)
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Basic TM (64bit)
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Basic TM (32bit)
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Basic TM (16bit)
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LPTM (32bit)
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LPTM (16bit)
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SysTick (64bit)
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SysTick (24bit)
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WDG
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RTC
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USART+UART
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LPUART
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I2C
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QSPI
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SPI
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I2S
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CAN 2.0B
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USB 2.0
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Ethernet
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EtherCAT Slave Controller
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SDIO
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MFCOM
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LIN
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LCD-TFT
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Segment LCD
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Camera
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IPA
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SAI
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TMU
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EXMC
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CEC
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14bit ADC Units (CHs)
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12bit ADC Units (CHs)
1(20)
1(12)
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12bit DAC Units
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Comp
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IEEE 802.11
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Bluetooth
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Dflash(Bytes)
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SENT
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Functional Safety
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Security
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Temperature Range(TA)
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cortex®-M23 | GD32E251 | QFN24 | 72 | 16K | 4K | up to 20 | 1 | 5 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 3 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1(12) | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -40℃~105℃ | |
| Cortex®-M23 | GD32E251 | QFN24 | 72 | 32K | 6K | up to 20 | 1 | 5 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 3 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1(12) | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -40℃~105℃ | |
| Cortex®-M23 | GD32E251 | QFN24 | 72 | 64K | 8K | up to 20 | 1 | 5 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 3 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1(12) | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -40℃~105℃ | |
| Cortex®-M23 | GD32E251 | QFN32 | 72 | 16K | 4K | up to 29 | 1 | 5 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 3 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1(20) | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -40℃~105℃ | |
| Cortex®-M23 | GD32E251 | QFN32 | 72 | 32K | 6K | up to 29 | 1 | 5 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 3 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1(20) | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -40℃~105℃ | |
| Cortex®-M23 | GD32E251 | QFN32 | 72 | 64K | 8K | up to 29 | 1 | 5 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 3 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1(20) | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -40℃~105℃ |
Documentation
Search
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Datasheet（1）
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Errata（1）
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Application Note（32）
Title
EN
CN
Date
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You can subscribe to this document
AN221 Instructions for Scatter Loading in IAR for GD32 Arm Cortex-M Processors_Rev1.2
2026-04-01
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AN206 Instructions for Scatter Loading in Keil MDK5 for GD32MCU_Rev1.1
2026-04-01
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AN311 Scatter Loading Instructions of GD32 Embedded Builder for Arm Cortex-M Processor_Rev1.0
2026-01-26
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AN200 GD32 Embedded Builder Linker Script Files Introduction for Arm Cortex-M Processor_Rev1.0
2026-01-26
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2025-12-05
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2025-12-05
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2024-11-25
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2022-04-21
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2022-04-21
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2022-04-21
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2022-12-08
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2022-12-08
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2022-12-08
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2022-12-08
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2025-08-01
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2022-12-08
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AN064 Calibration method of internal low speed oscillator using TIMER
2022-12-08
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2023-08-28
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AN068 GD32 MCU Eclipse development environment setup tutorial for Windows
2023-08-28
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2023-08-28
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AN075 Introduction of library invocation scheme based on MDK implementation
2023-08-28
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2023-08-28
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2023-08-28
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2024-12-20
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AN095 Methods to improve the accuracy of the GD32 MCU temperature sensor
2024-06-04
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2023-08-28
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2023-08-28
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2023-08-28
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2024-07-11
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2025-08-01
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2025-08-01
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AN264 Using the EIDE Plugin in VS Code to Develop GD32 MCU_Rev1.0
2025-08-15
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Firmware Library（1）
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AddOn（1）
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Demo Suites（1）
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Other Software（7）
Title
EN
CN
Date
-
2026-05-25
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2026-05-08
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2026-04-27
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2026-04-25
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2026-01-29
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2026-04-25
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2026-01-29
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