EM73A89B Overview
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.
Key Features
- Operation voltage Clock source : 2.2V to 3.6V
- Low-frequency oscillator is 32KHz
- Crystal oscillator or RC oscillator by mask option and high-frequency oscillator is a built-in internal oscillator
- Instruction set : 107 powerful instructions
- Instruction cycle time : 0.85µs for 9.2M or 1.7µs for 4.6M Hz selected by mask option(high speed clock)
