A CALIFORNIA MICRO DEVICES G65SC22 CMOS VERSATILE INTERFACE ADAPTER WITH INTERVAL TIM E R /C O U N TER S Features • CM OS process technology for low power consumption • Fully com patible with NMOS 6522 devices • Low power consumption allows battery-powered operation (2m A at 1MHz) • Two 8-bit, bidirectional peripheral I/O ports • Two powerful 16-bit program mable timer/counters • Serial bidirectional peripheral I/O port • Enhanced "handshake" feature • Latched input/output registers on both I/O ports • Programmable data direction registers • Four operating frequencies — 1, 2, 3,and 4 MHz • TTL com patible I/O peripheral lines • Single + 5 volts power supply • Available in 40-pin DIP or 4...

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