74lcx573 STMicroelectronics, 74lcx573 Datasheet - Page 2

• Manufacturer Part Number: 74lcx573
• Description: Octal D-type Latch Non-inverting 3-state With 5v Tolerant Inputs And Outputs
• Manufacturer: STMicroelectronics

74LCX573
Figure 2: Input And Output Equivalent Circuit
Table 2: Pin Description
Figure 3: Logic Diagram
This logic diagram has not be used to estimate propagation delays
2/13
2, 3, 4, 5, 6,
12, 13, 14,
15, 16, 17,
PIN N°
7, 8, 9
18, 19
10
20
11
1
SYMBOL
Q0 to Q7
D0 to D7
GND
V
OE
LE
CC
3 State Output Enable
Input (Active LOW)
Latch Enable Input
Ground (0V)
Positive Supply Voltage
Data Inputs
3-State Latch Outputs
NAME AND FUNCTION
Table 3: Truth Table
X : Don’t Care
Z : High Impedance
* : Q Outputs are latched at the time when the LE input is taken
LOW.
OE
H
L
L
L
INPUT
LE
H
H
X
L
D
H
X
X
L
NO CHANGE*
OUTPUT
Q
H
Z
L