74vhc574 STMicroelectronics, 74vhc574 Datasheet - Page 2

• Manufacturer Part Number: 74vhc574
• Description: Octal D-type Flip Flop With 3 State Output Non Inverting
• Manufacturer: STMicroelectronics

74VHC574
Figure 2: Input Equivalent Circuit
Table 3: Truth Table
X : Don’t Care
Z : High Impedance
Figure 3: Logic Diagram
This logic diagram has not be used to estimate propagation delays
2/14
OE
H
L
L
L
INPUTS
CK
X
Table 2: Pin Description
2, 3, 4, 5, 6,
12, 13, 14,
15, 16, 17,
PIN N°
7, 8, 9
18, 19
10
20
11
1
D
X
X
H
L
SYMBOL
Q0 to Q7
D0 to D7
GND
V
OE
CK
CC
3-State Output Enable
Input (Active LOW)
Data Inputs
3-State Outputs
Clock Input (LOW-to-HIGH
Edge Triggered)
Ground (0V)
Positive Supply Voltage
NAME AND FUNCTION
NO CHANGE
OUTPUT
Q
H
Z
L