Main features
8-bit Microcontroller With High Speed 8051 CPU
Basic MCU Function
– 4Kbytes Flash Code Memory
– 256bytes IRAM
Built-in Analog Function
– Power-On Reset and Low Voltage Detect Reset
– Internal 8MHz RC Oscillator (±2.0%, T
A
= 0 ~ +50°C)
– Internal 200kHz RC Oscillator (±3.0%, T
A
= -20 ~ +85°C)
– Watchdog Timer RC Oscillator (5kHz)
Peripheral Features
– 12-bit Analog to Digital Converter (8 inputs)
– USART(UART + SPI) 1set
– I2C 8-bit x 1-ch
– 16-bit CRC/Checksum Generator
I/O and Packages
– Up to 18 Programmable I/O lines with 20 pin package.
– 8 SOP, 10 SSOP, 16 SOPN, 20 SOP, 20 TSSOP
– Pb-free package
Operating Conditions
– 1.8V to 5.5V Wide Voltage Range
– -40°C to 85°C Temperature Range
Application
– Small Home Appliance