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SN74F27N 数据表(PDF) 1 Page - Texas Instruments

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部件名 SN74F27N
功能描述  TRIPLE 3-INPUT POSITIVE-NOR GATES
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

SN74F27N 数据表(HTML) 1 Page - Texas Instruments

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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
OUTPUT
A
B
C
Y
H
X
X
L
X
HX
L
X
XH
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)
32
1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
1Y
NC
3C
NC
3B
2A
NC
2B
NC
2C
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
VCC
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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