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EM73A89B 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
ary n i m i l e Pr
GENERAL DESCRIPTION
EM73A89B is an advanced single chip CMOS 4-bit micro-controller. It contains 16K-byte ROM, 1012-nibble RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/counters for the kernel function, and one high speed conter. EM73A89B also equipped with 6 interrupt sources, 3~7 I/O ports (including 1 input port and 2~7 bidirection ports), LCD display (64x16 or 64x32), built-in watch-dog-timer and speech synthesizer. It's low power consumption and high speed feature are further strengten with DUAL, SLOW, IDLE and STOP operation mode for optimized power saving.
FEATURES
Operation voltage Clock source : 2.2V to 3.6V. : Dual clock system.
EM73A89B Datasheet
