82C54
CMOS Programmable Interval Timer
The 82C54 is a high performance CMOS Programmable Interval Timer manufactured usi...
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 many other industry standard processors. Six programmable timer modes allow the 82C54 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 advanced
CMOS process results in a significant reduction in power with performance equal to or greater than existing equivalent products.
Pinouts
82C54 (PDIP, CERDIP) TOP VIEW
D7 1 D6 2 D5 3 D4 4 D3 5 D2 6 D1 7 D0 8 CLK 0 9 OUT 0 10 GATE 0 11 GND 12
24 VCC 23 WR 22 RD 21 CS 20 A1 19 A0 18 CLK 2 17 OUT 2 16 GATE 2 15 CLK 1 14 GATE 1 13 OUT 1
DATASHEET
FN2970 Rev.6.01 Jul 15, 2020
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....