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參數資料
| 型號： | P8254 |
| 廠商： | Intersil Corporation |
| 英文描述： | CMOS Programmable Interval Timer |
| 中文描述： | CMOS可編程間隔定時器 |
| 文件頁數： | 1/17頁 |
| 文件大小： | 142K |
| 代理商： | P8254 |
4-1
March 1997
82C54
CMOS Programmable Interval Timer
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
- C82C54 . . . . . . . . . . . . . . . . . . . . . . . . . .0
o
C to +70
o
C
- I82C54 . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to +85
o
C
- M82C54 . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +125
o
C
Description
The Intersil 82C54 is a high performance CMOS Program-
mable 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.
Pinouts
82C54 (PDIP, CERDIP, SOIC)
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
RD
CS
A1
A0
OUT 2
CLK 1
GATE 1
OUT 1
WR
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
File Number
2970.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
Intersil Corporation 1999
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