M74HCT373 데이터 시트보기 (PDF) - STMicroelectronics
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M74HCT373 Datasheet PDF : 11 Pages
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M74HCT373
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1
2, 5, 6, 9, 12,
15, 16, 19
3, 4, 7, 8, 13,
14, 17, 18
11
10
20
SYMBOL
OE
Q0 to Q7
NAME AND FUNCTION
3 State Output Enable
Input (Active LOW)
3 State Outputs
D0 to D7 Data Inputs
LE
GND
VCC
Latch Enable Input
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
INPUTS
OE
LE
D
H
X
X
L
L
X
L
H
L
L
H
H
X: Don’t Care
Z: High Impedance
(*): Q Outputs are latched at the time when the LE input is taken low logic level.
LOGIC DIAGRAM
OUTPUTS
Q
Z
NO CHANGE (*)
L
H
2/11
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