CDP1871 - CMOS Keyboard Encoder

Product Overview

Intersil Corporation

Datasheet Details

Part number	CDP1871
Manufacturer	Intersil Corporation
File Size	56.79 KB
Description	CMOS Keyboard Encoder
Datasheet	CDP1871 Datasheet
Additional preview pages of the CDP1871 datasheet.

Product details

Description

The CDP1871A is a keyboard encoder designed to directly interface between a CDP1800-series microprocessor and a mechanical keyboard array, providing up to 53 ASCII coded keys and 32 HEX coded keys, as shown in the system diagram (Figure 1).

Features

Directly Interfaces with CDP1800-Series Microprocessor.
Low Power Dissipation.
Three-State Outputs.
Scans and Generates Code for 53 Key ASCII Keyboard Plus 32 HEX Keys (SPST Mechanical Contact Switches).
Shift, Control, and Alpha Lock Input.
RC-Controlled Debounce Circuitry.
Single Supply 4V to 10.5V.
. . . (CDP1871A) 4V to 6.5V.
. . . (CDP1871AC).
N-Key Lockout Ordering Information PACKAG.

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Published: Mar 23, 2005 |