■ DESCRIPTION
The MB89640 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 variety of peripheral functions such as dual-clock control system, five operating speed control stages, timers, a PWM timer, serial interface, an A/D converter, a D/A converter, an external interrupt, and a watch prescaler.

■ FEATURES
• F2MC-8L family CPU core
    Instruction set optimized for controllers
        Multiplication and division instructions
        16-bit arithmetic operations
        Test and branch instructions
        Bit manipulation instructions, etc.Six types of timers
• 8-bit PWM timer: 2 channels (also usable reload timer)
    8-bit pulse width counter (continuous measurement capable and applicable to remote control)
    16-bit timer/counter
    21-bit time-base counter
    15-bit watch prescaler
• Two 8-bit serial I/O
    Swichable transfer direction allows communication with various equipment.
• 8-bit A/D converter: 8 channels
    Sense mode function enabling comparison at 12 instructions
    Activation by external input capable
• External interrupt 1, external interrupt 2: 9 channels
• 8-bit D/A converter: 2 channels
    8-bit R-2R type
• Low-power consumption modes (stop mode, sleep mode, watch mode, subclock mode)
• Bus interface functions
    Including hold and ready functions