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HTG1390 Datasheet 4-bit Microcontroller

Manufacturer: Holtek Semiconductor Inc

Overview: Preliminary.

General Description

The HTG1390 is the processor from Holtek’s 4-bit stand alone single chip microcontroller range specifically designed for LCD product applications.

The device is ideally suited for multiple LCD low power applications among which are calculators, scales, and hand held LCD products.

1 17th Nov ’98 Preliminary Block Diagram HTG1390 Notes: ACC: Accumulator PC: Program counter R0~R4: Working registers PA: Output port PS,PP: Input ports 2 17th Nov ’98 Preliminary Pad Assignment HTG1390 Chip size: 1960 × 2300 (µm)2 * The IC substrate should be connected to VSS in the PCB layout artwork.

Key Features

  • HTG1390 4-bit Microcontroller.
  • Operating voltage: 1.2V~1.8V 7 input lines 3 output lines Halt feature reduces power consumption Up to 16µs instruction cycle with 256kHz system clock at VDD=1.5V All instructions in 1 or 2 machine cycles 4K×8 program ROM Data memory RAM size 128×4 bits 27×3 segment LCD driver 8-bit table read instruction.

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