1. Features

 8bits micro-controller with Pipe-line structured 8051 compatible instruction set

 Flash ROM: 32K Bytes (Rub/write 10000 times)

 RAM: internal RAM 256 Bytes, external 1280 Bytes, LED RAM 28 Bytes, Touch key RAM 16 Bytes

 EEPROM-like: 1024 Bytes (Rub/write 100000 times)

 Operation Voltage:

- fOSC = 2MHz - 12MHz, VDD = 2.7V - 5.5V

 Oscillator (code option):

- Crystal oscillator: 32.768kHz

- Crystal oscillator: 2MHz - 12MHz

- Ceramic oscillator: 2MHz - 12MHz

- Internal RC: 16.6MHz (TA = +25°C, ±1), (TA = -40°C +85°C, ±2)

- Internal RC: 128KHz (±10)

 28pin: 26 CMOS bi-directional I/O pins

20pin: 18 CMOS bi-directional I/O pins

 Built-in pull-up resistor for input pin (Typical value 30K)

 Seven big current driver I/O

(7*16 common-cathode/common-anode LED)

 Five 16-bit timer/counters T0, T1, T2, T3, T4

 Two12 Bit PWM

 Powerful interrupt sources:

- Timer 0, 1, 2, 3, 4

- INT40 - INT47

- INT30 - INT32

- INT2

- ADC, EUART, TWI, SCM, LPD

- PWM1, 2, TOUCH, CRC

 8 channels Touch Key input

 EUART with Baud-rate generator

 TWI

 13 channels 12-Bit ADC, 1.25V (±1) internal reference voltage source, (TA = -40°C +85°C, ±2.5), ADC channel input internal reference voltage source

 LED driver

(7COM common-cathode/common-anode LED)

- 7 X 16 dots

 LPD

- LPD voltage: 2.8V - 4.2V

 Low Voltage Reset (LVR) function (enabled by code option)

- LVR Voltage 1: 3.7V

- LVR Voltage 2: 3.1V

- LVR Voltage 3: 2.8V

 CPU Machine cycle: 1 oscillator clock

 Watch Dog Timer (WDT)

 Warm-up Timer

 CRC verify module (CRC)

 Support Low power operation modes:

- Idle Mode

- Power-Down Mode

 Flash Type

 Package:

- SOP28/20