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74AC273 데이터 시트보기 (PDF) - STMicroelectronics
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74AC273
OCTAL D-TYPE FLIP FLOP WITH CLEAR
STMicroelectronics
74AC273 Datasheet PDF : 11 Pages
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74AC273
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
CLEAR
Q0 to Q7
D0 to D7
CLOCK
GND
V
CC
NAME AND FUNCTION
Asyncronous Master Reset
(Active LOW)
Flip-Flop Outputs
Data Inputs
Clock Input (LOW-to-HIGH
Edge Triggered)
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
CLEAR
L
H
H
H
X : Don’t Care
LOGIC DIAGRAM
INPUTS
D
X
L
H
X
CLOCK
X
OUTPUT
Q
L
L
H
Q
n
FUNCTION
CLEAR
NO CHANGE
This logic diagram has not be used to estimate propagation delays
2/11
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