參數(shù)資料
型號(hào): DM74LS251MX
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: 8-Input Digital Multiplexer
中文描述: LS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16
封裝: 0.150 INCH, MS-012, SOIC-16
文件頁(yè)數(shù): 4/6頁(yè)
文件大?。?/td> 58K
代理商: DM74LS251MX
www.fairchildsemi.com
4
D
Switching Characteristics
at V
CC
=
5V and T
A
=
25
°
C
Note 6:
C
L
=
5 pF
From (Input)
R
L
=
667
Symbol
Parameter
to (Output)
C
L
=
45 pF
Min
C
L
=
150 pF
Min
Units
Max
Max
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
A, B, C
(4 Levels) to Y
45
53
ns
t
PHL
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
A, B, C
(4 Levels) to Y
A, B, C
45
53
ns
t
PLH
33
38
ns
LOW-to-HIGH Level Output
Propagation Delay Time
(3 Levels) to W
A, B, C
t
PHL
33
42
ns
HIGH-to-LOW Level Output
Propagation Delay Time
LOW-to-HIGH Level Output
(3 Levels) to W
t
PLH
D to Y
28
35
ns
t
PHL
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
D to Y
28
38
ns
t
PLH
D to W
15
25
ns
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
t
PHL
D to W
15
25
ns
t
PZH
Output Enable Time to
HIGH Level Output
Output Enable Time to
Strobe to Y
45
60
ns
t
PZL
Strobe to Y
40
51
ns
LOW Level Output
Output Disable Time from
HIGH Level Output (Note 6)
t
PHZ
Strobe to Y
45
ns
t
PLZ
Output Disable Time from
LOW Level Output (Note 6)
Output Enable Time to
Strobe to Y
25
ns
t
PZH
Strobe to W
27
40
ns
HIGH Level Output
Output Enable Time to
LOW Level Output
t
PZL
Strobe to W
40
47
ns
t
PHZ
Output Disable Time from
HIGH Level Output (Note 6)
Output Disable Time from
Strobe to W
55
ns
t
PLZ
Strobe to W
25
ns
LOW Level Output (Note 6)
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