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HD66420 Datasheet (ram-provided 160 Channel 4-level Grey Scale Driver For Dot Matrix Graphics Lcd)

Manufacturer: Hitachi Semiconductor (now Renesas)

Overview: HD66420 (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics.

General Description

The HD66420 drives and controls a dot matrix graphic LCD(Liquid Crystal Display) using a bit-mapped method.

It provides a highly flexible display through its on-chip display RAM, in which each two bits of data can be used to turn on or off one dot on LCD panel with four-level grey scale.

A single HD66420 can display a maximum of 160x80 dots using its powerful display control functions.

Key Features

  • Built-in bit-mapped display RAM: 25.6kbits (160 × 80 × 2 bits) Grey scale display: PWM four-level grey scale can be selected from 32 levels Grey scale memory management: Packed pixel Partial display: Eight-lines data can be displayed in any place An 80-system MPU interface Power supply voltage for operation : 2.2V to 5.5V Power supply voltage for LCD : 13 V max. Selectable multiplex duty ratio: 1/.

HD66420 Distributor