Product Summary

The P8254-5 is a high performance CMOS Programmable Interval Timer manufactured using an advanced 2 micron CMOS process. The high speed and industry standard configuration of the 8254-5 make it compatible along with many other industry standard processors. Six programmable timer modes allow the P8254-5 to be used as an event counter, elapsed time indicator, programmable one-shot, and many other applications. Static CMOS circuit design insures low power operation.

Parametrics

P8254-5 absolute maximum ratings: (1) Supply Voltage: +8.0V; (2)Input, Output or I/O Voltage: GND-0.5V to VCC +0.5V; (3)ESD Classification: Class 1; (4)Operating Voltage Range: +4.5V to +5.5V.

Features

P8254-5 features: (1)8MHz to 12MHz Clock Input Frequency; (2)Compatible with NMOS 8254: Enhanced Version of NMOS 8253; (3)Three Independent 16-Bit Counters; (4)Six Programmable Counter Modes; (5)Status Read Back Command; (6)Binary or BCD Counting; (7)Fully TTL Compatible; (8)Single 5V Power Supply.

Diagrams

P8254-5 block diagram