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EM73461B - 4-BIT MICRO-CONTROLLER

General Description

EM73461B is an advanced single chip CMOS 4-bit 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.

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), or built-in internal oscillator. Instruction set : 109 powerful instructions for 4K ROM / 107 powerful instructoins for 8K ROM. Instruction cycle time : 0.85µs for 9.2M or 1.7µs for 4.6M or 2µs for 4MHz. Selected by mask optio.

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Datasheet Details

Part number EM73461B
Manufacturer ELAN Microelectronics Corp
File Size 231.74 KB
Description 4-BIT MICRO-CONTROLLER
Datasheet download datasheet EM73461B Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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EM73461B 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT inary Prelim GENERAL DESCRIPTION EM73461B is an advanced single chip CMOS 4-bit 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. EM73461B also contains 6 interrupt sources, 1 input port, 2 bidirection ports, LCD display (32x4), and one high speed timer/counter with melody output. EM73461B has plentiful operating modes (SLOW, IDLE, STOP) intended to reduce the power consumption. FEATURES • Operation voltage • Clock source : 2.4V to 3.6V. : Dual clock system.