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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003, 2005. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
July 11, 2005
82C54
CMOS Programmable Intervel 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 12MHz (82C54-12).
The high speed and industry standard configuration of the
82C54 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 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 Intersil advanced CMOS process results in a significant
reduction in power with performance equal to or greater than
existing equivalent products.
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
μ
A
- ICCOP . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA at 8MHz
Operating Temperature Ranges
- CX82C54 . . . . . . . . . . . . . . . . . . . . . . . . . 0
o
C to +70
o
C
- IX82C54 . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to +85
o
C
- MD82C54 . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +125
o
C
Pb-Free Plus Anneal Available (RoHS Compliant)
Pinouts
82C54 (PDIP, CERDIP)
TOP VIEW
82C54 (PLCC/CLCC)
TOP VIEW
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
21
22
23
24
15
14
13
D7
D6
D5
D4
D3
D2
D1
D0
CLK 0
OUT 0
GATE 0
GND
VCC
WR
RD
CS
A1
A0
OUT 2
CLK 1
GATE 1
OUT 1
CLK 2
GATE 2
G
N
O
G
C
O
G
D
N
V
W
R
D
D
CS
A1
A0
CLK2
NC
GATE 2
OUT 2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
D3
D2
D1
D0
D4
NC
CLK 0
Data Sheet
FN2970.4