Product Summary

The R65C22P4 is a versatile interface adapter. It is a very flexible I/O control device. In addition, this device contains a pair of very powerful 16-bit interval timers, a serial-to-parallel/parallel-to-serial shift register and input data latching on the peripheral ports. The R65C22P4 includes functions for programmed control of up to two peripheral devices. It also has two programmable 16-bit interval timer/counters with latches.

Parametrics

R65C22P4 absolute maximum ratings: (1)Supply voltage VCC: -0.3 to +7.0 Vdc; (2)Input voltage VIN: -0.3 to VCC+0.3 Vdc; (3)Output voltage VOUT: -0.3 to VCC +0.3 Vdc; (4)Operating temperature TA Commercial: 0 to 70℃; Industrial: -40 to +85℃; (5)Storage temperature TSTG: -55 to +150℃.

Features

R65C22P4 features: (1)Low power CMOS N-well silicon gate technology; (2)Fully compatible with NMOS 6522 devices; (3)Two 8-bit bidirectional I/O ports; (4)Two 16-bit programmable timer/counters; (5)Serial bidirectional peripheral I/O; (6)TTL compatible peripheral control lines; (7)Latched output and input registers on both I/O ports; (8)1,2,3 and 4 MHz operation.

Diagrams

R65C22P4 block diagram

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