參數(shù)資料
型號(hào): 74HC27
廠商: NXP Semiconductors N.V.
英文描述: Triple 3-input NOR gate
中文描述: 三3輸入或非門
文件頁(yè)數(shù): 3/5頁(yè)
文件大?。?/td> 32K
代理商: 74HC27
December 1990
3
Philips Semiconductors
Product specification
Triple 3-input NOR gate
74HC/HCT27
PIN DESCRIPTION
PIN NO.
SYMBOL
NAME AND FUNCTION
1, 3, 9
2, 4, 10
13, 5, 11
7
12, 6, 8
14
1A to 3A
1B to 3B
1C to 3C
GND
1Y to 3Y
V
CC
data inputs
data inputs
data inputs
ground (0 V)
data outputs
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
Fig.4 Functional diagram.
Fig.5 Logic diagram (one gate).
FUNCTION TABLE
Notes
1.
H = HIGH voltage level
L = LOW voltage level
X = don’t care
INPUTS
OUTPUT
nA
nB
nC
nY
L
X
X
H
L
X
H
X
L
H
X
X
H
L
L
L
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