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W65C21S - Peripheral Interface Adapter

General Description

The WDC W65C21S is a very flexible Peripheral Interface Adapter (PIA) for use with WDC’s 65xx and other 8-bit microprocessor families.

The W65C21S provides programmed microprocessor control of up to two peripheral devices (Port A and Port B).

Key Features

  • The Western Design Center W65C21S 3 The Western Design Center, Inc. W65C21S Data Sheet www. DataSheet4U. com Figure 3. W65C21S PIA Block Diagram D0-D7 PHI2 RWB RS0 RS1 CS0 CS1 CS2B RESB IRQAB IRQBB VSS VCC (8) (8) PA0-PA7 CA1 CA2.

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Datasheet Details

Part number W65C21S
Manufacturer WDC
File Size 548.28 KB
Description Peripheral Interface Adapter
Datasheet download datasheet W65C21S Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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The Western Design Center, Inc. W65C21S Data Sheet www.DataSheet4U.com Peripheral Interface Adapter (PIA) W65C21S The Western Design Center W65C21S 1 The Western Design Center, Inc. W65C21S Data Sheet WDC reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. Information contained herein is provided gratuitously and without liability, to any user. Reasonable efforts have been made to verify accuracy of the information but no guarantee whatsoever is given as to the accuracy or as to its applicability to particular uses. In every instance, it must be the responsibility of the user to determine the suitability of the products for each application.