HTG1390 Просмотр технического описания (PDF) - Holtek Semiconductor

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HTG1390

4-bit Microcontroller

Holtek Semiconductor 

Preliminary

HTG1390

4-bit Microcontroller

Features

• 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

General Description

The HTG1390 is the processor from Holtek’s

4-bit stand alone single chip microcontroller

range specifically designed for LCD product ap-

plications. The device is ideally suited for mul-

• 27×3 segment LCD driver

• 8-bit table read instruction

• 5 working registers

• Internal timer overflow interrupt

• One level subroutine nesting

• RC oscillator for system clock

• 8-bit timer with internal clock source

• Sound effect circuit

tiple LCD low power applications among which

are calculators, scales, and hand held LCD

products.

1

17th Nov ’98

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