IS82C54-12
数据手册.pdfCMOS可编程间隔计时器 CMOS Programmable Interval 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
