IN5732 Datasheet | Integral

IN5732 4BIT SINGLE CHIP MICROPUTER The IN5732 is a CMOS 4-bit single chip microputer that operate on low voltage, very low current and contain LCD drivers. They also contain a 4 bit parallel processing ALU, a program memory ROM, many LCD segment outputs, a prescaler, an oscillator. The IN5732 is especially suited for use in high-grade timepieces, time controllers, electronic calculators, LCD games with timepiece. The IN5732 is especially suited for use in audio equipment, copiers, facsimiles with LCD and sub CPU applications. Features Supply voltage 1.5V or 3V (Mask option-selectable) Current dissipation 3.0 u A Typ. (Ag Battery version, 32KHz crystal oscillation, during timekeeping operation) 1.5 u A Typ. (Li Battery version, 32KHz crystal oscillation, during timekeeping operation) Oscillation Crystal oscillation for timekeeping (32.768 KHz); or CR oscillator. Output pins for 27 pins LCD drive Drivable LCD panel Number of Drivable LCD segment 1/3 duty 81 segments 1/2 bias 1/2 duty 54 segments 1/2 bias Static 27 segments On chip melody 3 octaves (the melody length is solfware-controlled. One Musical note function requires one byte.) Number of input 8 pins Number of out 3 pins (Output dedicated to alarm: 2 pins, general-purpose output: 1 pins pin). Possible to use LCD panel drive output pins as output pin-only ports (Mask optionselectable) ROM 2048 X 8 bits RAM 48 X 4 bits .. Cycle Time CR oscillation at 65 Hz 60us 32.768 KHz crystal 122us On chip step-up / step down circuit Instruction set 92 instructions Table read instruction 1 level subroutine nesting on-chip 15 bit divider for timekeeping (delivers an overflow single every 64ms/500ms when a 32.768 KHz crystal is used). HALT...