74lcx74 STMicroelectronics, 74lcx74 Datasheet - Page 4

• Manufacturer Part Number: 74lcx74
• Description: Cmos Dual D-type Flip Flop With 5v Tolerant Input
• Manufacturer: STMicroelectronics

Pin settings
2
2.1
2.2
2.3
4/17
Pin settings
Pin connection
Figure 4.
Pin description
Table 1. Pin description
Truth table
Table 2. Truth table
1. X do not care
CLR
H
H
H
H
L
L
Pin N°
1, 13
2, 12
3, 11
4, 10
5, 9
6, 8
14
7
Pin connection (top through view)
PR
H
H
H
H
L
L
Inputs
X
1CLR, 2CLR
D
X
X
X
H
L
1CK, 2CK
1PR, 2PR
(1)
Symbol
1Q, 2Q
1Q, 2Q
1D, 2D
GND
V
CC
CK
X
X
X
Asynchronous reset - direct input
Data inputs
Clock input (LOW to HIGH, Edge Triggered)
Asynchronous set - direct input
True Flip-Flop outputs
Complement Flip-Flop outputs
Ground (0V)
Positive supply voltage
Q
Q
H
H
H
L
L
n
Outputs
Name and function
Q
Q
H
H
H
L
L
n
No change
Function
PRESET
CLEAR
74LCX74