■ DESCRIPTION

The MB89170/170A/170L series has been developed as a general-purpose version of the F2MC*-8L family consisting of proprietary 8-bit, single-chip microcontrollers.

In addition to a compact instruction set, the microcontrollers contain a great variety of peripheral functions such as timers, a serial interface, a DTMF generator, and external interrupts, making it suitable for circuit control such as required in telephones.

■ FEATURES

• F2MC-8L family CPU core

• Maximum memory space: 64 Kbytes

• Minimum execution time/interrupt processing time

MB89170 series: 1.1 µs/10 µs (at 3.58 MHz oscillation)

MB89170A/170L series: 0.6 µs/5.4 µs (at 7.16 MHz oscillation)

• Dual-clock control system (MB89170/170A series only)

• I/O ports: max. 37 ports

• 21-bit timebase counter

• Watch prescaler (MB89170/170A series only)

• Watchdog timer

• 8/16-bit timer/counter: 1 channel

• 8-bit serial I/O: 1 channel

• DTMF generator (MB89170/170A series only)

Selectable oscillation frequency (MB89170A series only)

• External interrupt 1: 3 channels

Three channels are independent and capable of using for wake-up from low-power consumption modes (with

an edge detection function).

• External interrupt 2 (wake-up): 8 channels

Eight channels are independent and capable of using for wake-up from low-power consumption modes (with

an “L” level detection function).

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

• CMOS technology