CH455 Datasheet - ETC

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CH455 LED drive and keyboard control chip

English DataSheet of CH455 1 LED drive and keyboard control chip CH455 English DataSheet Version:1C http://wch.cn 1.Introduction CH455 is LED displ.
Positive power, the persistent current is no less than 150mA Public ground, the persistent current is no less than 150mA Segment driver of LEDs, activ.

CH455-ETC.pdf

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Datasheet Details

Part number:

CH455

Manufacturer:

ETC

File Size:

178.29 KB

Description:

LED drive and keyboard control chip

Features

* Set display current drive layer internally, the current of segment is no less than 25mA, the current of word is no less than 160mA.
* Display scan control dynamically, support 8×4 or 7×4, directly drive four bits number LED or thirty two LEDs.
* Internal limit current, set eight level

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CH455 LED drive and keyboard control chip ETC

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