1. Features (All of the flowing contents are from SH88F516; The characteristics of SH88F54/SH89F52 is slightly different from SH88F516, see “Product Information” section)

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

 Flash ROM: 64K Bytes

 RAM: internal 256 Bytes, external 1024 Bytes

 EEPROM-like: 1K Bytes

 Operation Voltage:

VDD = 3.6V - 5.5V，fOSC = 30kHz - 16.6MHz

 Oscillator (code option)

- Crystal oscillator: 32.768kHz

- Crystal oscillator: 400kHz - 16.6MHz

- Ceramic oscillator: 400kHz - 16.6MHz

- Internal RC: 16.6MHz

- External clock:30kHz-16.6MHz

 40 CMOS bi-directional I/O pins (Quasi-Bi mode, Push-Pull mode, Input-Only mode and Open-Drain mode)

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

 Powerful interrupt sources:

- Timer0, 1, 2

- INT0, INT1, INT4 (8 input)

- EUART0, EUART1, SPI, PWM, SCM, LPD

- ADC, CMP0, CMP1

 Three 8-bit PWM

 Two built-in comparator (CMP)

 EUART0 & EUART1

 SPI interface (Master/Slave Mode)

 8channels 10-bits Analog Digital Converter (ADC)

 Low Voltage Detect (LPD)

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

- LVR voltage level 1: 4.3V

- LVR voltage level 2: 3.7V

 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

 Package:

- QFP44

- TQFP48

- LQFP44