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EM73866 - 4-BIT MICRO-CONTROLLER

General Description

EM73866 is an advanced single chip CMOS 4-bit micro-controller.

It contains 8K-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.

Key Features

  • • Operation voltage • Clock source • • • • • • • • • • • • • • • : 2.2V ~ 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 (Connect an external resistor) or Crystall oscillator. Instruction set : 107 powerful instructions. Instruction cycle time : Up to 2us for 4 MHz (high speed clock). 244 µs for 32768 Hz (low speed clock). 122 µs for 32768 Hz (low speed clock with frequency Do.

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Datasheet Details

Part number EM73866
Manufacturer ELAN Microelectronics Corp
File Size 254.68 KB
Description 4-BIT MICRO-CONTROLLER
Datasheet download datasheet EM73866 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.

View original datasheet text
EM73866 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT GENERAL DESCRIPTION EM73866 is an advanced single chip CMOS 4-bit micro-controller. It contains 8K-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. EM73866 also contains 6 interrupt sources, 2 input port, 7 bidirection ports, Max LCD display (32x4), built-in watch-dog-timer and high speed Timer/Counter. EM73866 has plentiful operating modes (SLOW, IDLE, STOP) intended to reduce the power consumption. FEATURES • Operation voltage • Clock source • • • • • • • • • • • • • • • : 2.2V ~ 6V. : Dual clock system.