CH592F
WCH · CH592 Series
In production
32 bit · RV32IMAC
Low-power data
Max clock
20MHz
SRAM
26KB
On-chip Flash
448KB
Active current
—
Sleep current
0.8µA
Supply voltage
1.75–3.6V
Overview
CH592F is a WCH-bit RISC-V MCU from 32, built on the WCH in-house QingKe V4C core (RV32IMAC), with a maximum clock of 20 MHz, 26 KB of on-chip SRAM, and 448 KB KB of Flash.
Core and memory
| Vendor | WCH（Chinese mainland） |
|---|---|
| IP brand / origin | WCH in-house（Chinese mainland） |
| Core | QingKe V4C |
| ISA / bit width | RV32IMAC · 32 bit |
| Max clock | 20 MHz |
| SRAM | 26 KB |
| On-chip Flash | 448 KB |
Power and electrical
Active current
—
Sleep current
0.8 µA
Standby / shutdown
0.3 µA
Conditions and notes: The vendor or source notes are in Chinese in the original DS（CH592/CH591）: DC-DC; Idle 1.1mA; Halt 1.0mA（PLL/HSE 不停）/180µA（PLL/HSE 停）; Sleep 0.8~2.5µA; Shutdown 0.3~1.3µA; BLE 接收 7.5mA（关 DC-DC）/3.5mA（开 DC-DC），3.3V
| Supply voltage | 1.75–3.6 V |
|---|---|
| Operating temperature | -40 ℃ ~ 85 ℃ |
Peripherals and interfaces
| UART / USART | 4 way |
|---|---|
| SPI | 1 way |
| I²C | 1 way |
| USB Full-Speed | 1 way |
| BLE | 1 way |
| LCD controller | 1 way |
| Touch | 8 way |
| ADC | 8 channels · 12 bit |
| Other | The vendor or source notes are in Chinese in the original BLE 5.4（2Mbps/1Mbps），RX -95dBm，TX +9dBm；USB2.0 FS 主机+设备；段式 LCD 16*4；448K CodeFlash + 24K Boot + 32K DataFlash；SRAM 24K 保持 + 2K |
Sources and notes
Confidence:High (official datasheet) · Last verified 2026-11-04
The vendor or source notes are in Chinese in the original CH592X=QFN32/24 GPIO/12+1 ADC/20*4 LCD；CH592A=QFN28 但最低 2.3V；CH592D=QFN20。CH591 = CH592 去掉 TouchKey 与 I2C、Flash 仅 192K。2023-03-06 官方发布。