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M74HCT573 Datasheet(PDF) 2 Page - STMicroelectronics

Part No. M74HCT573
Description  OCTAL D-TYPE LATCH WITH 3 STATE OUTPUT NON INVERTING
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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M74HCT573 Datasheet(HTML) 2 Page - STMicroelectronics

 
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M74HCT573
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INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
X: Don’t Care
Z: High Impedance
(*): Q Outputs are latched at the time when the LE input is taken low logic level.
LOGIC DIAGRAM
PIN No
SYMBOL
NAME AND FUNCTION
1OE
3 State Output Enable
Input (Active LOW)
2, 3, 4, 5, 6,
7, 8, 9
D0 to D7
Data Inputs
12, 13, 14,
15, 16, 17,
18, 19
Q0 to Q7
3 State Latch Outputs
11
LE
Latch Enable Input
10
GND
Ground (0V)
20
VCC
Positive Supply Voltage
INPUTS
OUTPUTS
OE
LE
D
Q
H
XXZ
L
L
X
NO CHANGE (*)
LHL
L
LH
H
H


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