1. Features
 8bits micro-controller with Pipe-line structured 8051 compatible instruction set
 Flash ROM: 32K Bytes
 RAM: internal 256 Bytes, external 1280 Bytes, LCD RAM: 28 Bytes
 EEPROM-like: 1024 Bytes
 Operation Voltage:
fOSC = 32.768kHz - 16MHz, VDD = 2.0V - 5.5V
 Oscillator (code option)
- Crystal oscillator: 32.768kHz
- Crystal oscillator: 2MHz - 16MHz
- Ceramic oscillator: 2MHz - 16MHz
- Internal RC: 12MHz (±2%)/128K
 46/42/30 CMOS bi-directional I/O pins
 Built-in pull-up resistor for input pin
 Four 16-bit timer/counters: T2, T3, T4 and T5
 One 12-bit PWM
 One 8-bit PWM
 Powerful interrupt sources:
- Timer2, 3, 4, 5
- INT0, 1, 2, 3
- INT40 - INT47
- ADC, EUART, SCM, LPD
- PWM, SPI
 EUART0, EUART1 (No EUART1 in 32 PIN package)
 SPI Interface (Master/Slave Mode)
 Buzzer
 9 channels 12-bits Analog Digital Converter (ADC), with comparator function built-in
 LED driver:
- 3-8 X 8 dots (1/3 - 1/8 duty)
 LCD driver:
- 8 X 24 dots (1/8 duty, 1/4 bias)
- 6 X 26 dots (1/6 duty, 1/4 or 1/3 bias)
- 5 X 27 dots (1/5 duty, 1/3 bias)
- 4 X 28 dots (1/4 duty, 1/3 bias)
 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
- LVR voltage level 4: 2.1V
 CRC verify module built-in, check size is optional
 Support SWE simulation, write and read
 CPU Machine cycle: 1 oscillator clock
 Watch Dog Timer (WDT)
 Warm-up Timer
 Support Low power operation modes:
- Idle Mode
- Power-Down Mode
 Flash Type
 Package: TQFP48/LQFP44/LQFP32