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EM73P461A Datasheet 4-bit Micro-controller

Manufacturer: ELAN Microelectronics Corp

Overview: EM73P461A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT inary Prelim GENERAL.

General Description

EM73P461A is an advanced single chip CMOS 4-bit one-time programming (OTP) micro-controller.

It contains 4K/8K-byte ROM, 244-nibble RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/ counters for the kernel function.

EM73P461A also contains 6 interrupt sources, 1 input port, 2 bidirection ports, LCD display (32x4), and one high speed timer/counter with melody output.

Key Features

  • Operation voltage.
  • Clock source : 2.4V to 3.6V. : Dual clock system. Low-frequency oscillator is Crystal or RC oscillator (32K Hz, connect an external resistor) by mask option and high-frequency oscillator is RC oscillator (connect an external resistor). Instruction set : 109 powerful instructions for 4K ROM / 107 powerful instructoins for 8K ROM. Instruction cycle time : Up to 2us for 4 MHz (high speed clock). 122 µs or 244µs by frequency double mask option for 32768 Hz (low.

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