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參數資料
| 型號： | SN54F27FK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | TRIPLE 3-INPUT POSITIVE-NOR GATES |
| 中文描述： | 三重3輸入陽性或非門 |
| 文件頁數： | 1/5頁 |
| 文件大?。?/td> | 67K |
| 代理商： | SN54F27FK |
SN54F27, SN74F27
TRIPLE 3-INPUT POSITIVE-NOR GATES
SDFS042A – MARCH 1987 – REVISED OCTOBER 1993
Copyright
1993, Texas Instruments Incorporated
2–1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
description
These devices contain three independent 3-input
NOR gates. They perform the Boolean functions
Y = A
B
C or Y = A + B + C in positive logic.
The SN54F27 is characterized for operation over
the full military temperature range of –55
°
C to
125
°
C. The SN74F27 is characterized for
operation from 0
°
C to 70
°
C.
FUNCTION TABLE
(each gate)
INPUTS
B
OUTPUT
Y
A
C
H
X
X
L
X
H
X
L
X
X
H
L
L
L
L
H
logic symbol
Y
1
1A
2
1B
13
1C
1Y
12
3
2A
4
2B
5
2C
2Y
6
9
3A
10
3B
11
3C
3Y
8
A
B
C
logic diagram, each gate (positive logic)
≥
1
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
SN54F27 . . . J PACKAGE
SN74F27 . . . D OR N PACKAGE
(TOP VIEW)
SN54F27 . . . FK PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
1Y
NC
3C
NC
3B
2A
NC
2B
NC
2C
1
1
N
3
3
V
1
2
G
N
C
NC – No internal connection
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1A
1B
2A
2B
2C
2Y
GND
V
CC
1C
1Y
3C
3B
3A
3Y
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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