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參數(shù)資料
| 型號： | HD74LV157A |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Quad. 2-to-1 line Data Selectors / Multiplexers(Noninverted Outputs) |
| 中文描述： | 四。 2比1線數(shù)據(jù)選擇器/多路復(fù)用器（Noninverted產(chǎn)出） |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 62K |
| 代理商： | HD74LV157A |
HD74LV157A
7
Switching Characteristics
V
CC
= 2.5
±
0.2 V
Ta = 25
°
C
Ta = –40 to 85
°
C
Item
Symbol
Min
Typ
Max
Min
Max
Unit
Test Conditions
FROM
(Input)
TO
(Output)
Propa-
gation
delay
time
t
PLH
/t
PHL
—
9.8
15.9
1.0
19.5
ns
C
L
= 15 pF
A or B
Y
—
13.3
18.8
1.0
22.0
C
L
= 50 pF
—
15.5
19.4
1.0
23.5
C
L
= 15 pF
SEL
—
15.7
22.3
1.0
26.0
C
L
= 50 pF
—
15.8
19.8
1.0
24.0
C
L
= 15 pF
STB
—
14.8
22.7
1.0
26.5
C
L
= 50 pF
V
CC
= 3.3
±
0.3 V
Ta = 25
°
C
Ta = –40 to 85
°
C
Item
Symbol
Min
Typ
Max
Min
Max
Unit
Test Conditions
FROM
(Input)
TO
(Output)
Propa-
gation
delay
time
t
PLH
/t
PHL
—
6.2
9.7
1.0
11.5
ns
C
L
= 15 pF
A or B
Y
—
8.7
13.2
1.0
15.0
C
L
= 50 pF
—
8.4
13.2
1.0
15.5
C
L
= 15 pF
SEL
—
10.9
16.7
1.0
19.0
C
L
= 50 pF
—
8.7
13.6
1.0
16.0
C
L
= 15 pF
STB
—
11.2
17.1
1.0
19.5
C
L
= 50 pF
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