| Part Number | W65C21S |
| Manufacturer | WDC |
| Title | Peripheral Interface Adapter |
| 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... |
| 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
PERIPHERAL DEV...
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| Datasheet |
 W65C21S Datasheet
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