Features of The W65C21S
- Low power CMOS N-well silicon gate technology
- High speed/Low power replacement for Motorola / Rockwell / AMI / *MOS Technology / MOSTEK / HITACHI / ST Microelectronics / GTE / CMD 6520, 6521, 6820, 6821 PIA’s
- Two 8-bit bidirectional I/O ports with individual data direction control.
- Automatic “Handshake” control of data transfers
- Two interrupts (one for each port) with program control
- Static to 14MHz operation, with high speed Port A, CA2 outputs.
- Industrial temperature range
- 40 Pin Plastic Dip and 44 Pin Plastic PLCC versions
- 5 volt ± 10% supply requirements
- Compatible with the 65xx and 68xx family of microprocessors
Read more about this topic: WDC 65C21
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