IS82C54

CMOS可编程定时器有限区间 CMOS Programmable Intervel Timer

Description

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.

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10µA

\- ICCOP . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA at 8MHz

• Operating Temperature Ranges

\- C82C54 . . . . . . . . . . . . . . . . . . . . . . . . . .0°C to +70°C

\- I82C54 . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C

\- M82C54 . . . . . . . . . . . . . . . . . . . . . . . -55°C to +125°C