74VHC74T View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
74VHC74T Datasheet PDF : 11 Pages
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74VHC74
INPUT EQUIVALENT CIRCUIT
TRUTH TABLE
CLR
L
H
L
H
H
H
X: Don’t Care
INPUTS
PR
D
H
X
L
X
L
X
H
L
H
H
H
X
LOGIC DIAGRAMS
PIN DESCRIPTION
PIN No
1, 13
2, 12
3, 11
4, 10
5, 9
6, 8
7
14
SYMBOL
1CLR,
2CLR
1D, 2D
1CK, 2CK
1PR, 2PR
1Q, 2Q
1Q, 2Q
GND
VCC
NAME AND FUNCTION
Asyncronous Reset -
Direct Input
Data Input
Clock Input
(LOW-to-HIGH, Edge-
Triggered)
Asyncronous Set - Direct
Input
True Flip-Flop Outputs
Complement Flip-Flop
Outputs
Ground (0V)
Positive Supply Voltage
OUT PUT S
CK
Q
Q
X
L
H
X
H
L
X
H
H
L
H
H
L
Qn
Qn
F UNCT IO N
CLEAR
PRESET
NO CHANGE
This logic diagram has not be used to estimate propagation delays
2/11
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