The device is an 8-bit high performance RISC-like microcontroller designed for multiple I/O product applications. The device is particularly suitable for use in products such as battery charger controllers and A/D applications. A HALT feature is included to reduce power consumption. The program and option memories can be electrically programmed, making the microcontroller suitable for use in product development.

Specifications:

• Operating voltage: fSYS=4MHz: 3.3V~5.5V, fSYS=8MHz: 4.5V~5.5V
• 13 bidirectional I/O lines (max.)
• 1 interrupt input shared with an I/O line
• 8-bit programmable timer/event counter with overflow interrupt and 7-stage prescaler
• On-chip crystal and RC oscillator
• Watchdog Timer
• 204814 program memory PROM
• 648 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
• Six-level subroutine nesting 4 channels 9-bit resolution (8-bit accuracy) A/D converter
• 1 channel (6+2)-bit PWM output shared with an I/O line
• Bit manipulation instruction
• 14-bit table read instruction
• 63 powerful instructions
• All instructions in one or two machine cycles
• Low voltage reset function
• 18-pin DIP/SOP package