CPU Features

Operating Voltage:
fSYS= 4MHz: 2.2V~5.5V
fSYS= 8MHz: 2.2V~5.5V
fSYS= 12MHz: 2.7V~5.5V
Up to 0.33us instruction cycle with 12MHz system clock at VDD= 5V
Power down and wake-up functions to reduce power consumption
Oscillators:
– Internal High Speed 4/8/12MHz RC Oscillator – HIRC
– Internal Low Speed 32kHz RC Oscillator – LIRC
Fully integrated internal oscillators require no external components
Multi-mode operation: FAST, SLOW, IDLE and SLEEP
All instructions executed in 1~3 instruction cycles
Table read instructions
115 powerful instructions
6-level subroutine nesting
Bit manipulation instruction

Peripheral Features

Flash Program Memory: 4Kx16
RAM Data Memory: 256×8
True EEPROM Memory: 32×8
Watchdog Timer function
Up to 21 bidirectional I/O lines
2 differential or 4 single-end channels 24-bit resolution Delta Sigma A/D converter
LCD driver function
4 Touch Key inputs
Internal Comparator
Two pin-shared external interrupts
Timer Module for time measure, compare match output or PWM output function
UART Interface for full duplex asynchronous communication
Dual Time-Base functions for generation of fixed time interrupt signals
Low Voltage Reset function – LVR
Low Voltage Detect function – LVD
Package type: 24/28-pin SSOP