參數(shù)資料
型號: 74HCT354
廠商: NXP Semiconductors N.V.
英文描述: 8-Bit Parallel-Load Shift Registers 16-SOIC -40 to 85
中文描述: 8輸入多路復(fù)用器/注冊透明鎖存器,三態(tài)
文件頁數(shù): 4/14頁
文件大?。?/td> 82K
代理商: 74HCT354
December 1990
4
Philips Semiconductors
Product specification
8-input multiplexer/register with
transparent latches; 3-state
74HC/HCT354
FUNCTION TABLE
Notes
1.
2.
This column shows the input address set-up with LE = LOW (address latch is transparent).
D
0
to D
7
= data at inputs D
0
to D
7
D
0n
to D
7n
= data at inputs D
0
to D
7
before the most recent LOW-to-HIGH transition of E
H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
INPUTS
OUTPUTS
DESCRIPTION
ADDRESS
(1)
E
OUTPUT ENABLE
Y
Y
S
2
S
1
S
0
OE
1
OE
2
OE
3
X
X
X
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
X
X
X
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
X
X
X
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
X
X
X
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
H
X
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
X
H
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
X
X
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Z
Z
Z
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
D
0n
D
1n
D
2n
D
3n
D
4n
D
5n
D
6n
D
7n
Z
Z
Z
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
D
0n
D
1n
D
2n
D
3n
D
4n
D
5n
D
6n
D
7n
outputs in
high impedance
OFF-state
data latch is
transparent
data is
latched
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