參數(shù)資料
型號: HD74LVC533
廠商: Hitachi,Ltd.
英文描述: Octal D-type Transparent Latches with 3-state Outputs(三態(tài)輸出的八D透明鎖存器)
中文描述: 八路D型透明鎖存器與三態(tài)輸出(三態(tài)輸出的八?透明鎖存器)
文件頁數(shù): 1/9頁
文件大?。?/td> 57K
代理商: HD74LVC533
HD74LVC533
Octal D-type Transparent Latches with 3-state Outputs
ADE-205-070B(Z)
Rev.2
September 1995
Description
The HD74LVC533 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 (@V
CC
= 0 V to 5.5 V)
Typical V
OL
ground bounce < 0.8 V (@V
CC
= 3.3 V, Ta = 25
°
C)
Typical V
OH
undershoot > 2.0 V (@V
CC
= 3.3 V, Ta = 25
°
C)
High output current
±
24 mA (@V
CC
= 3.0 V to 5.5 V)
Function Table
Inputs
*
LE
D
Output
4
H
X
X
Z
L
H
L
H
L
H
H
L
L
H :
L :
X :
Z :
Q
0
:
L
X
Q
0
High level
Low level
Immaterial
High impedance
Level of
4
before the indicated steady input conditions were established.
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