CH455 LED drive and keyboard control chip

Description

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.

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Datasheet Specifications

Part number: CH455
Manufacturer: ETC
File Size: 178.29 KB
Datasheet: CH455-ETC.pdf
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

CH455 Distributors

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CH455 LED drive and keyboard control chip ETC

ETC CH455-like datasheet