1. Features

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

 OTP ROM:

- 4K X 8bit, program four times

- 8K X 8bit, program two times

- 16K X 8bit, program one time

 RAM: internal 256 Bytes, external 286 Bytes

 Operation Voltage: 1.8V - 3.6V

 Oscillator (code option)

- Crystal oscillator: 32.768kHz

- Internal RC: 32kHz

- Internal RC: 4MHz

 46 CMOS bi-directional I/O pins

 One open-drain I/O pin

 Built-in pull-up resistor for input pins

 Two 16-bit timer/counters: T2, T3

 One 8-bit PWM

 One remote control carrier wave generator

 Three I/O with 20mA sink current, act as LCD backlight driver

 One I/O with 500mA sink current, act as remote control

 7channels 10-bits Analog Digital Converter (ADC), with comparator function built-in (no ADC in SH77P1651A)

 One EUART

 Interrupt sources:

- INT41 - INT47

- Timer2, 3

- PWM1, REM

- ADC, EUART, SCM

 LCD driver(Resistor and Capacitor Mode):

- 4 X 30 dots (1/4 duty, 1/3 bias)

- 5 X 29 dots (1/5 duty, 1/3 bias)

 Low Voltage Reset (LVR) function

 CPU Machine cycle: 1 oscillator clock

 Watch Dog Timer (WDT)

 Warm-up Counter

 Support Low power operation modes:

- Idle Mode

- Power-Down Mode

 Package:

- TQFP48 (SH77P1651A)

- TQFP48 and chip form (SH77P1652A)