309-509 - Keyboard encoder

Product Overview

RS Components

Part number	309-509
Manufacturer	RS Components
File Size	2.71 MB
Description	Keyboard encoder
Datasheet	309-509 Datasheet
Additional preview pages of the 309-509 datasheet.

oOne integrated circuit required for complete keyboard assembly. o Outputs directlycompatiblewith TTLor MOSlogic arrays. o External control provided for output polarity selection. . External control provided for selectionof odd or even parity. oTwo key roll-overoperation. o N-keylockout. o Self-containedoscillatorcircuit. oExternally controlled delay network provided to eliminate the effectof contactbounce. oStatic charge protection on all input and output terminals. Figure'l Pinconnections Fi.

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Published: Dec 8, 2019 |