P8254 - CMOS Programmable Interval Timer
The Intersil 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
P8254 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
