74LCX573M STMICROELECTRONICS [STMicroelectronics], 74LCX573M Datasheet - Page 2

• Manufacturer Part Number: 74LCX573M
• Description: OCTAL D-TYPE LATCH NON-INVERTING (3-STATE) WITH 5V TOLERANT INPUTS AND OUTPUTS
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

74LCX573
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
LOGIC DIAGRAM
This logic diagram has not be used to estimate propagation delays
2/10
2, 3, 4, 5, 6,
12, 13, 14,
15, 16, 17,
PIN No
7, 8, 9
18, 19
11
10
20
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
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
X
X
H
L
NO CHANGE*
OUTPUT
Q
H
Z
L