IS82C54 Datasheet - Intersil Corporation

IS82C54 - CMOS Programmable Interval Timer

82C54 CMOS Programmable Interval Timer The 82C54 is a high performance CMOS Programmable Interval Timer manufactured using an advanced 2 micron CMOS process. The 82C54 has three independently programmable and functional 16-bit counters, each capable of handling clock input frequencies of up to 8MHz (82C54) or 10MHz (82C54-10) or 12MHz (82C54-12). The high speed and industry standard configuration of the 82C54 make it compatible with the 80C86, 80C88, and 80C286 CMOS microprocessors along with ma.

IS82C54 Features

* 8MHz to 12MHz Clock Input Frequency

* Compatible with NMOS 8254 - Enhanced Version of NMOS 8253

* Three Independent 16-Bit Counters

* Six Programmable Counter Modes

* Status Read Back Command

* Binary or BCD Counting

* Fully TTL Compatible

IS82C54_IntersilCorporation.pdf