CP82C54 product image


Clock/Timing - Programmable Timers and Oscillators
INTERSIL [Intersil Corporation]


The Intersil  CP82C54  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 (CP82C54) or 10MHz (82C54-10) or 12MHz (82C54-12).The high speed and industry standard configuration of the CP82C54 make it compatible with the Intersil 80C86, 80C88,and 80C286 CMOS microprocessors along with many other industry standard processors. Six programmable timer modes allow the CP82C54 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.The Intersil advanced CMOS process results in a significant reduction in power with performance equal to or greater than existing equivalent products.


CP82C54 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
• Single 5V Power Supply
• Low Power - ICCSB . . .10mA  - ICCOP . . . 10mA at 8MHz
• Operating Temperature Ranges
  - C82C54  . .0oC to +70oC
  - I82C54  . . -40oC to +85oC
  - M82C54 . . . -55oC to +125oC

Voltage - Supply4.5 V ~ 5.5 V
Current - Supply10mA
Operating Temperature0°C ~ 70°C
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