■ OUTLINE

The MB89680 series is a line of single-chip microcontrollers. In addition to a compact instruction set, the microcontrollers contain a variety of peripheral functions such as dual-clock control system, four operating speed control stages, timers, PWM timer, a serial interface, a UART, an A/D converter, and an external interrupt.

■ FEATURES

• F2MC-8L family CPU core

• Dual-clock control system

• Maximum memory space: 64 Kbytes

• Minimum execution time: 0.5 µs/8 MHz

• Interrupt processing time: 4.5 µs/8 MHz

• I/O ports: max. 85 channels

• 21-bit timebase counter

• 8-bit PWM timer

• 8/16-bit timer

• UART

• Serial I/O with 1-byte buffer

• 8-bit A/D converter

• Pulse width counter

• Modem signal output

• External interrupts: 16 channels

• Power-on reset function

• Low-power consumption modes (subclock mode, watch mode, sleep mode, and stop mode)

• CMOS technology