General Description

The device are 8-bit, high performance, RISC architecture microcontroller devices specifically designed for A/D applications that interface directly to analog signals, such as those from sensors.

Features

Operating voltage:

fSYS=4MHz: 2.2V~5.5V

fSYS=8MHz: 3.3V~5.5V

20 bidirectional I/O lines

Two interrupt input shared with an I/O line

Two 8-bit programmable timer/event counter with overflow interrupt and 7-stage prescaler

Two 8-bit programmable pulse generator (PPG) output channels, with prescaler and 8-bit programmable

timer counter, and supports active low or active high output

On-chip crystal and RC oscillator

Watchdog Timer

409615 program memory

1928 data memory RAM

Supports PFD for sound generation

HALT function and wake-up feature reduce power consumption

Up to 0.5s instruction cycle with 8MHz system clock at VDD=5V

8-level subroutine nesting

8 channels 9-bit resolution A/D converter

Two comparators with interrupt function

Bit manipulation instruction

15-bit table read instruction

63 powerful instructions

All instructions in one or two machine cycles

Low voltage reset function

28-pin SKDIP/SOP package