M74HC77 데이터 시트보기 (PDF) - STMicroelectronics
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M74HC77 Datasheet PDF : 10 Pages
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M74HC77
IINPUT AND OUTPUT EQUIVALENT CIRCUIT
LOGIC DIAGRAM
PIN DESCRIPTION
PIN No
1, 2, 5, 6
3
7, 10
8, 9, 13, 14
12
11
4
SYMBOL
1D to 4D
G3 • 4
NC
1Q to 4Q
G1 • 2
GND
VCC
NAME AND FUNCTION
Data Inputs
Latch Enable Input,
Latches 3 and 4
No Internal Connection
Latch Outputs
Latch Enable Input,
Latches 1 and 2
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
INPUTS
D
G
L
H
H
H
X
L
X : Don’t Care
OUTPUTS
Q
L
H
Qn
FUNCTION
LATCH
2/10
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