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General Description

This device is Flash Memory with 8-bit high performance RISC architecture microcontroller device

which includes a host of fully integrated special features specifically designed for the brushless DC

motor applications.

Features

CPU Features

? Operating Voltage:

? fSYS=32kHz ~ 20MHz: 4.5V~5.5V

? Up to 0.2μs instruction cycle with 20MHz system clock at VDD=5V

? Power down and wake-up functions to reduce power consumption

? Two oscillators:

? Internal 20MHz RC - HIRC

? Internal 32kHz RC - LIRC

? Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP

? All instructions executed in one or two instruction cycles

? Table read instructions

? 63 powerful instructions

? Up to 8-level subroutine nesting

? Bit manipulation instruction

Peripheral Features

? Flash Program Memory: 4K×15

? RAM Data Memory: 256×8

? EEPROM Memory: 128×8

? Watchdog Timer function

? Up to 28 bidirectional I/O lines

? Six pin-shared external interrupts

? Support IR cord Noise Filter function

? Four 10-bit CTMs for Buzzer, RMT, up/down or left/right fan-head

? Single 16-bit CTM for BLDC sensorless application

? Single 16-bit CAPTM for motor protect

? Two 8-bit RMTs for IR decode

? A pair of 10-bit PWM with comlementary outputs for BLDC application

? 9-channel 10-bit resolution A/D converter

? Time-Base function for generation of fixed time interrupt signal

? Single operational Amplifier for current detect

? Two comparators with interrupt functions

? Dual 8-bit D/A Converter

? Low voltage reset function

? Low voltage detect function

? Package types: 16-pin NSOP, 28-pin SOP/SSOP/SKDIP, 44-pin QFP