CH554P
CORE: 8051
Clock (MHz): 24
Flash (KB): 16K
RAM (KB): 1K+256
GPIO: 17
DMA (unit*ch): 3.3/5
OperatingTemperatureRange(℃): -40~85
PackageType: QFN16
LPTimer: 3*16b
Pulse Counter: 2
USART/UART: 2
LPUART: 2
I²C: -
SPI: 1
USB: 1*H/1*D
12bitADC Units(CHs): 4*8b