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Microperipherals
•W65C21S
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•The W65C21S is a very flexible Peripheral Interface Adapter (PIA) for use with WDC’s 65xx and other 8-bit microprocessor families.
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•Product Features:
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–Two 8-bit bidirectional I/O ports with per bit data direction control.
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–Automatic “Handshake” control of data transfers
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–(4) Programmable interrupt control lines (two for each port)
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–Register and Chip Selects specified for multiplexed operation
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Availability:
CHIPS
–40 Pin PDIP
–44 Pin PLCC
–44 Pin QFP – Coming Soon
–RoHS / Green Compliant
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 CORES
–Proven GDSII Hard Core
–Complete documentation and test benches provided
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