M74HC356 데이터 시트보기 (PDF) - STMicroelectronics
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M74HC356 Datasheet PDF : 13 Pages
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M74HC356
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
8, 7, 6, 5, 4,
3, 2, 1
9
11
14, 13, 12
15, 16
17
18
19
10
20
SYMBOL NAME AND FUNCTION
D0 to D7 Data Inputs
CLOCK
SC
S0, S1, S2
G1, G2
G3
W
Y
GND
VCC
Clock Input (LOW to
HIGH, Edge-triggered)
Latch Enable Input (Active
LOW)
Select Inputs
Output Enable Inputs
(Active LOW)
Output Enable Input
(Active HIGH)
3 - state Multiplexer
Output (Active LOW)
3 - state Multiplexer
Output (Active HIGH)
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
INPUTS
OUTPUTS
SELECT *
OUTPUT ENABLES
CLOCK
W
Y
S2
S1
S0
G1
G2
G3
X
X
X
X
H
X
X
Z
Z
X
X
X
X
X
H
X
Z
Z
X
X
X
X
X
X
L
Z
Z
L
L
L
L
L
H
D0
D0
L
L
L
L
L
H
D0n
D0n
L
L
H
L
L
H
D1
D1
L
L
H
L
L
H
D1n
D1n
L
H
L
L
L
H
D2
D2
L
H
L
L
L
H
D2n
D2n
L
H
H
L
L
H
D3
D3
L
H
H
L
L
H
D3n
D3n
H
L
L
L
L
H
D4
D4
H
L
L
L
L
H
D4n
D4n
H
L
H
L
L
H
D5
D5
H
L
H
L
L
H
D5n
D5n
H
H
L
L
L
H
D6
D6
H
H
L
L
L
H
D6n
D6n
H
H
H
L
L
H
D7
D7
H
H
H
L
L
H
D7n
D7n
X : Don’t Care
Z : High Impedance
* : This Column Shows the Input Address Setup with SC low.
D0n....D7n : The level of steady state inputs at input D1 through D7, respectively, before the most recent low to high transition of data control.
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