MS51EC0AE

SRAM 256+2K
Data Flash Configurable
LDROM 4K
I/O 26
Timer 4*16-bit
UART 2+3
SPI 1
I2C 1
PWM 12*16-bit
ADC 15
ISP/ICP/IAP Yes
Status H2/2019
INT 2
Special Function 1T 8051 , 24 MHz internal RC , on-chip debugger

The NuMicro® MS51 industrial series microcontrollers is based on 1T 8051 core.