1. Features

 8051 compatible Pipe-lined instruction based on the single-chip 8-bit micro-controller

 Flash ROM: 64K Bytes

 EEPROM: 2K Bytes

 RAM: internal 256 Bytes and external 2816 Bytes

LCD RAM：32 Bytes

 Operation voltage: 2.2V - 3.8V

 Oscillator (Code option):

- fOSC=32.768kHz

- Build in PLL : PLL= 8.192MHz

 46 CMOS general purpose I/O ports

 Built-in pull-up resistor for I/O

 Three 16-bit timer / counters: T0, T1 & T2

 Powerful interrupt sources:

- Timer0, Timer1, Timer2

- External interrupt 1, 2, 3

- EUART0, EUART1, EUART2

- RTC, LPD

- ADC, EMU, PWM

 Energy Metering

Active/ reactive/ apparent Energy Metering and voltage/ current rms metering

Accuracy of 0.1 for active energy over a dynamic range of 2000:1.

Accuracy of 0.5 for reactive energy over a dynamic range of 1000:1.

Less than 0.5 error for voltage/ current rms

 5 channels 10-bit Analog to Digital Converter (ADC) with built-in compare function

 EUART0,EUART1 (built-in IR), EUART2

 Built-in Calendar clock

 Two 12-bit PWM timers

 LCD driver:

- 4 COM x 32 SEG (1/4 duty 1/3 bias)

- 6 COM x 30 SEG (1/6 duty 1/3 bias)

- 8 COM x 28 SEG (1/8 duty 1/4 bias)

- 8 levels contrast software programmable

 Built-in low power detection (LPD)

 Built-in low voltage reset (LVR) function (enabled by code option)

LVR voltage: 2.3V

 Built-in Watch Dog Timer (WDT)

 Warm-up timer for power-on reset

 CPU Machine cycle: 1 oscillator clock

 Support Low power operation modes:

- IDLE Mode

- Power-Down Mode

 Low-power Comsumption

 Package: LQFP64(10*10) / LQFP64 (7*7)