EM73983 Datasheet (ELAN Microelectronics Corp)

EM73983, 4-BIT MICRO-CONTROLLER

EM73983 is an advanced single chip CMOS 4-bit micro-controller.

It contains 16K-byte ROM, 500-nibble RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/counters for the kernel function.

EM73983 also equipped with 6 interrupt sources, 3 I/O ports (including 1 input port

EM73983 Features

* Operation voltage

* Clock source : 2.2V to 4.8V. : Dual clock system. Low-frequency oscillator is Crystal or RC oscillator (32K Hz, connect a external resistor) by mask option and high-frequency oscillator is a built-in internal oscillator (4.6 MHz). Instruction set : 107 powerful