LC587508A Datasheet | SANYO

Overview ROM (8K/6K/4K × 16 bits), RAM (512 × 4 bits), LCD driver 4-bit 1-chip Microputers The LC587508A/06A/04A are CMOS 4-bit microcontrollers that, centering around a low-voltage-operable CPU, incorporate on a single-chip a number of features including 8K/6K/4K × 16 bits of ROM, 512 × 4 bits of RAM, stackdedicated RAM (8 levels), 8-bit AD (4CH), 8-bit timer (2 channels) (1 channel can be used as an event counter), 8-bit synchronous serial interface, alarm signal generator circuit, remote control carrier generator circuit, LCD controller and driver, and powerful standby function (power saving feature ). They are upward-patible versions of the LC587408A, extended with reinforced I/O port and segment driver capabilities. Functions - Mobile devices with LCD display capabilities (optimum for mobile device applications that require battery-driven low power operation). - Control and LCD display of and for portable CDs, timers, and health monitoring instruments. - Remote control for CDs, VCRs, tuners, etc. Features - ROM - LC587508A (8192 × 16 bits) - LC587506A (6144 × 16 bits) - LC587504A (4096 × 16 bits) - RAM - LC587508A (512 × 4 bits) - LC587506A (512 × 4 bits) - LC587504A (512 × 4 bits) Ver 1.11 22504 TN IM AO No.7807-1/17 .. LC587508A, 587506A, 587504A - Instruction Cycle Time (all instructions except table lookup instructions execute in one cycle) - LCD voltage step-up option (1.5V power supply/Ag battery, etc.) Cycle Time 20µs 122µs Supply Voltage 1.35 to 1.75V 1.35 to 1.75V System Clock Oscillation Source RC oscillator Xtal (crystal) oscillator Oscillation Frequency 200k Hz 32.768k Hz - LCD voltage step-down option (3.0V power supply/Li battery, etc.) Cycle Time 1µs 4µs 10µs 122µs Supply Voltage 4.5 to 5.5V 2.5 to 5.5V 2.5 to 5.5V 2.0 to 5.5V System Clock Oscillation Source CF (ceramic) oscillator CF (ceramic) oscillator CF (ceramic) oscillator Xtal (crystal) oscillator Oscillation Frequency 4MHz 1MHz 400k Hz 32.768k Hz - It must be noted when using an LCD,...