GD32E252/251/232 Series

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Overview

The GD32E232 series MCUs provides up to four channels of 12-bit precision DAC outputs, eliminating the need for an external digital potentiometer, which reduces PCB size and BOM cost. The GD32E232 series MCUs also includes a built-in acceleration unit, along with the hardware multiplier and divider of the Cortex^®-M23 core. This allows the PWM duty cycle to be quickly calculated, enabling precise control of the DAC outputs.

In order to improve the accuracy of analog measurements, the GD32E232 series MCUs integrates a high performance 12-bit ADC with a 2.6MSPS sampling rate and up to 16 reusable channels. It also supports 16-bit hardware oversampling filtering and resolution configuration functions. The GD32E232's sampling accuracy surpasses that of similar products on the market.

The newly equipped Configurable Logic Array (CLA) provides more hardware flexibility for field applications and can implement simple combinational logic and sequential logic operations. This enhances CPU efficiency and improves the real-time performance of signal processing for cost-sensitive products.

The GD32E232 series MCUs enable the Cortex^®-M23 core to perform analog-intensive operations at up to 72 MHz and are equipped with additional standard peripheral resources for industrial applications, including: up to five 16-bit general-purpose timers, one 16-bit advanced vector control timer that supports three-phase PWM output, two 16-bit basic timers, and a multi-channel DMA controller. For serial interfaces, it includes two USARTs, two SPIs, two I2Cs, and one I2S.

The GD32E232 series MCUs operates from 1.8V to 3.6V power supply in a -40°C to + 105°C industrial temperature range and is available in QFN32 and QFN24 packages. Additionally, the GD32E232 series MCUs features a built-in I2C bootloader in a separate area of flash memory to meet the requirements for updating the program code in a small package and compact layout, Therefore, the existing standard I2C interface can be used directly to download programs and updates, providing a convenient solution for mass production.

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GD32E232

Based on the Cortex®-M23 core, up to 72MHz operating frequency.
Integrated 64KB Flash and 8KB SRAM.
Support 32-bit GP Timer, 4x 12-bitDAC.
GD32E252

Based on the Cortex®-M23 core, up to 72MHz operating frequency.
Integrated 64KB Flash and 8KB SRAM.
Support 32-bit GP Timer, 4x 12-bit DAC.
Up to 29 IO
GD32E251

Based on the Cortex®-M23 core, up to 72MHz operating frequency.
Integrated 64KB Flash and 8KB SRAM.
Support 32-bit GP Timer, 4x 12-bit DAC.
Up to 28 IO

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Part No	Core	Series GD32E252 GD32E251 GD32E232	Package QFN32 QFN24	Max Speed (MHz)	Flash (Bytes) 16K 32K 64K	SRAM (Bytes) 4K 6K 8K	I/O up to 29 up to 28 up to 20 up to 18	GPTM (32bit)	GPTM (16bit) ≥ ≤	Advanced TM (16bit)	Basic TM (16bit)	SysTick (24bit)	WDG	RTC 0 1	USART+UART 2+0 2	I2C ≥ ≤	SPI ≥ ≤	I2S	12bit ADC Units (CHs) 1(9) 1(20) 1(19) 1(16) 1(12) 1(11)	12bit DAC Units	Comp ≥ ≤	Temperature Range(TA)
GD32E251E4Q7TR	Cortex®-M23	GD32E251	QFN24	72	16K	4K	up to 20	1	5	1	2	1	2	0	2	3	1	1	1(12)	4	1	-40℃~105℃
GD32E251E6Q7TR	Cortex®-M23	GD32E251	QFN24	72	32K	6K	up to 20	1	5	1	2	1	2	0	2	3	1	1	1(12)	4	1	-40℃~105℃
GD32E251E8Q7TR	Cortex®-M23	GD32E251	QFN24	72	64K	8K	up to 20	1	5	1	2	1	2	0	2	3	2	1	1(12)	4	1	-40℃~105℃
GD32E251K4Q7TR	Cortex®-M23	GD32E251	QFN32	72	16K	4K	up to 29	1	5	1	2	1	2	0	2	3	1	1	1(20)	4	1	-40℃~105℃
GD32E251K6Q7TR	Cortex®-M23	GD32E251	QFN32	72	32K	6K	up to 29	1	5	1	2	1	2	0	2	3	1	1	1(20)	4	1	-40℃~105℃
GD32E251K8Q7TR	Cortex®-M23	GD32E251	QFN32	72	64K	8K	up to 29	1	5	1	2	1	2	0	2	3	2	1	1(20)	4	1	-40℃~105℃
GD32E252E4Q7TR	Cortex®-M23	GD32E252	QFN24	72	16K	4K	up to 18	1	5	1	2	1	2	0	2	3	1	1	1(11)	4	1	-40℃~105℃
GD32E252E6Q7TR	Cortex®-M23	GD32E252	QFN24	72	32K	6K	up to 18	1	5	1	2	1	2	0	2	3	1	1	1(11)	4	1	-40℃~105℃
GD32E252E8Q7TR	Cortex®-M23	GD32E252	QFN24	72	64K	8K	up to 18	1	5	1	2	1	2	0	2	3	2	1	1(11)	4	1	-40℃~105℃
GD32E252K4Q7TR	Cortex®-M23	GD32E252	QFN32	72	16K	4K	up to 28	1	5	1	2	1	2	0	2	3	1	1	1(19)	4	1	-40℃~105℃
GD32E252K6Q7TR	Cortex®-M23	GD32E252	QFN32	72	32K	6K	up to 28	1	5	1	2	1	2	0	2	3	1	1	1(19)	4	1	-40℃~105℃
GD32E252K8Q7TR	Cortex®-M23	GD32E252	QFN32	72	64K	8K	up to 28	1	5	1	2	1	2	0	2	3	2	1	1(19)	4	1	-40℃~105℃
GD32E232E4U7TR	Cortex®-M23	GD32E232	QFN24	72	16K	4K	up to 18	1	4	1	2	1	2	1	2+0	2	1	1	1(9)	4	0	-40℃~105℃
GD32E232E6U7TR	Cortex®-M23	GD32E232	QFN24	72	32K	6K	up to 18	1	4	1	2	1	2	1	2+0	2	1	1	1(9)	4	0	-40℃~105℃
GD32E232E8U7TR	Cortex®-M23	GD32E232	QFN24	72	64K	8K	up to 18	1	5	1	2	1	2	1	2+0	2	2	1	1(9)	4	0	-40℃~105℃
GD32E232K4Q7TR	Cortex®-M23	GD32E232	QFN32	72	16K	4K	up to 28	1	4	1	2	1	2	1	2+0	2	1	1	1(16)	4	0	-40℃~105℃
GD32E232K6Q7TR	Cortex®-M23	GD32E232	QFN32	72	32K	6K	up to 28	1	4	1	2	1	2	1	2+0	2	1	1	1(16)	4	0	-40℃~105℃
GD32E232K8Q7TR	Cortex®-M23	GD32E232	QFN32	72	64K	8K	up to 28	1	5	1	2	1	2	1	2+0	2	2	1	1(16)	4	0	-40℃~105℃