embedded-processors-controllers

CH32V203

Full part number: CH32V203C6T6

Key datasheet specifications and the closest alternatives, ranked by parametric similarity and grounded in the manufacturer datasheet.

01 — Overview

This datasheet covers the CH32V203 series of industrial-grade 32-bit RISC-V microcontrollers from WCH, including specific part numbers like the CH32V203G6U6. The document outlines key specifications such as a maximum CPU frequency of 144MHz, up to 224KB of program memory, and 64KB of SRAM. It details rich peripheral resources including dual USB interfaces supporting host and device modes, two CAN 2.0B active controllers, multiple timers for motor control, and various communication ports like USART, I2C, and SPI. The scope defines hardware features, power management modes, and package options aimed at general-purpose applications.

02 — Key specifications

Datasheet parameters

ParameterMinTypMaxConditions
quiescent current 120 µA 180 µA 270 µA
output voltage 2.4 V — 3.6 V VI/Ocannot be more than VDD
supply voltage range 2.4 V 3.3 V 3.6 V
input offset voltage — 1.5 mV 6 mV
gain bandwidth 19 MHz — — CLOAD = 5pF
cmrr — 96 dB — @1KHz
operating temperature -40 °C — 85 °C
clock frequency 3 MHz 8 MHz 25 MHz
input capacitance — 5 pF —
slew rate 8 MV/s — — CLOAD = 5pF
cpu speed — 144 MHz —
program memory size — 32.8 kB —
ram size — 10.2 kB —
io count — 37 —
adc resolution — 12 bit —
core size — 32 bit —
rise time — — 20 ns Load capacitance:C = 30pF
data retention 20 year — —
load capacitance — 20 pF — RS = 60Ω(1)
sample rate 50 kHz — 1 MHz
03 — Alternatives

Closest matches to CH32V203

STM32F103C8T6 7.7× lower quiescent current, 4.5× higher clock frequency, 2.0× lower cpu speed
MSPM0G3505SDGS28 20.0× lower load capacitance, 7.5× lower input offset voltage, 5.7× lower rise time
STM32F103B 4.5× higher clock frequency, 4.0× higher program memory size, 2.2× lower quiescent current
STM32G431x6 18.6× higher quiescent current, 10.6× higher clock frequency, 3.3× higher input offset voltage
CH32V003F4U6 6.2× higher clock frequency, 5.0× lower ram size, 2.9× lower cpu speed
GD32F103RFT6 9.4× higher ram size, 2.5× higher load capacitance, 1.7× lower rise time
STM32L010F4P6 8.2× lower quiescent current, 5.0× lower ram size, 4.5× lower cpu speed
STM32F030C4K6 3.0× higher clock frequency, 3.0× lower cpu speed, 2.5× lower ram size
04 — FAQ

Frequently asked questions

What is the ADC resolution of the CH32V203C6T6?

The ADC resolution is 12 bit.

What is the maximum clock frequency?

The maximum clock frequency is 8 MHz.

What is the CMRR of the CH32V203C6T6 at 1KHz?

The CMRR is 96 dB @1KHz.

What is the core size of the CH32V203C6T6?

The core size is 32 bit.

What is the maximum CPU speed of the CH32V203C6T6?

The maximum CPU speed is 144 MHz.

What is the data retention time for the CH32V203C6T6?

The data retention time is 20 year.

What is the gain bandwidth when CLOAD = 5pF?

The gain bandwidth is 19 MHz when CLOAD = 5pF.

What is the input capacitance of the CH32V203C6T6?

The input capacitance is 5 pF.

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