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參數(shù)資料
| 型號(hào)： | SN54HC7002 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Quadruple Positive-Nor Gates With Schimitt Trigger Inputs(四正或非門(施密特觸發(fā)輸入)) |
| 中文描述： | 四重積極，也不蓋茨Schimitt觸發(fā)輸入（四正或非門（施密特觸發(fā)輸入）） |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 118K |
| 代理商： | SN54HC7002 |
SN54HC7002, SN74HC7002
QUADRUPLE POSITIVE-NOR GATES
WITH SCHMITT-TRIGGER INPUTS
SCLS033C – MARCH 1984 – REVISED MAY 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Operation From Very Slow Input
Transitions
Temperature-Compensated Threshold
Levels
High Noise Immunity
Package Options Include Plastic
Small-Outline (D) and Ceramic Flat (W)
Packages, Ceramic Chip Carriers (FK),
and Standard Plastic (N) and Ceramic
(J) 300-mil DIPs
description
In these devices, each circuit functions as a
quadruple NOR gate. They perform the Boolean
function Y = A
B or Y = A + B in positive logic.
However, because of the Schmitt action, the
inputs have different input threshold levels for
positive- and negative-going signals.
These circuits are temperature compensated and
can be triggered from the slowest of input ramps
and still give clean jitter-free output signals.
The SN54HC7002 is characterized for operation
over the full military temperature range of –55
°
C
to 125
°
C. The SN74HC7002 is characterized for
operation from –40
°
C to 85
°
C.
FUNCTION TABLE
(each gate)
INPUTS
OUTPUT
Y
A
H
B
X
L
X
H
L
L
L
H
Copyright
1997, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SN54HC7002 . . . J OR W PACKAGE
SN74HC7002 . . . D OR N PACKAGE
(TOP VIEW)
SN54HC7002 . . . FK PACKAGE
(TOP VIEW)
NC – No internal connection
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1A
1B
1Y
2A
2B
2Y
GND
V
CC
4B
4A
4Y
3B
3A
3Y
3
2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
4A
NC
4Y
NC
3B
1Y
NC
2A
NC
2B
1
1
N
3
3
V
4
2
G
N
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