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HD74LVC573A Datasheet(HTML) 1 Page - Hitachi Semiconductor

Part No. HD74LVC573A
Description  Octal D-type Transparent Latches with 3-state Outputs
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Maker  HITACHI [Hitachi Semiconductor]
Homepage  http://www.renesas.com/eng
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HD74LVC573A Datasheet(HTML) 1 Page - Hitachi Semiconductor

 
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HD74LVC573A
Octal D-type Transparent Latches with 3-state Outputs
ADE-205-116B(Z)
3rd Edition
December 1996
Description
The HD74LVC573A has eight D type latches with three state outputs in a 20 pin package. When the latch
enable input is high, the Q outputs will follow the D inputs. When the latch enable goes low, data at the D
inputs will be retained at the outputs until latch enable returns high again. When a high logic level is
applied to the output control input, all outputs go to a high impedance state, regardless of what signals are
present at the other inputs and the state of the storage elements. Low voltage and high speed operation is
suitable at the battery drive product (note type personal computer) and low power consumption extends the
life of a battery for long time operation.
Features
• V
CC = 2.0 V to 5.5 V
• All inputs V
IH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V)
• All outputs V
OUT (Max.) = 5.5 V (@VCC = 0 V or output off state)
• Typical V
OL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
• Typical V
OH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)
• High output current ±24 mA (@V
CC = 3.0 V to 5.5 V)
Function Table
Inputs
OC
LE
D
Output Q
L
HHH
LH
LL
LLX
Q
0
H
XXZ
H :
High level
L :
Low level
X :
Immaterial
Z :
High impedance
Q
0 :
Level of Q before the indicated steady input conditions were established.


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