1. Features
 8bits micro-controller with Pipe-line structured 8051 compatible instruction set
 Flash ROM: 8K Bytes
 RAM: internal 256 Bytes, external 256 Bytes
 EEPROM-like: 512 Bytes
 Operation Voltage:
fOSC = 30kHz - 16.6MHz, VDD = 2.8V - 5.5V
 Oscillator (code option)
- Crystal oscillator: 32.768kHz
- Crystal oscillator: 4MHz - 16.6MHz
- Ceramic oscillator: 2MHz -16.6MHz
- Internal RC: 16.6MHz (±2%)
- External clock: 30kHz - 16.6MHz
 18 CMOS bi-directional I/O pins
 7 high current drive ports
 Three 16-bit timer/counters T0, T1and T2
 Powerful interrupt sources:
- Timer0, 1, 2
- INT0, 1, 2
- ADC, EUART, SCM, PWM, LPD
 One 8-bit PWM
 EUART
 Low voltage detect (LPD)
 8 channels 10-bits Analog Digital Converter (ADC), with comparator function built-in
 Low Voltage Reset (LVR) function (enabled by code option)
- LVR voltage level 1: 4.1V
- LVR voltage level 2: 3.7V
- LVR voltage level 3: 2.8V
 CPU Machine cycle: 1 oscillator clock
 Watch Dog Timer (WDT)
 Warm-up Timer
 System Clock Monitor (SCM)
 Support Low power operation modes
- Idle Mode
- Power-Down Mode
 Low power consumption
 Flash Type
 Package: SOP/TSSOP 20Pin