參數(shù)資料
型號: 74240
廠商: Fairchild Semiconductor Corporation
英文描述: Octal 3-STATE Buffer/Line Driver/Line Receiver
中文描述: 八路三態(tài)緩沖器/線路驅(qū)動器/線接收器
文件頁數(shù): 4/7頁
文件大?。?/td> 72K
代理商: 74240
www.fairchildsemi.com
4
D
Switching Characteristics
at V
CC
=
5V and T
A
=
25
°
C
Symbol
Parameter
Conditions
Max
Units
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
C
L
=
45 pF
R
L
=
667
C
L
=
45 pF
R
L
=
667
C
L
=
45 pF
R
L
=
667
C
L
=
45 pF
R
L
=
667
C
L
=
5 pF
R
L
=
667
C
L
=
5 pF
R
L
=
667
C
L
=
150 pF
R
L
=
667
C
L
=
150 pF
R
L
=
667
C
L
=
150 pF
R
L
=
667
C
L
=
150 pF
R
L
=
667
DM74LS240
DM74LS241
DM74LS240
14
18
18
ns
t
PHL
ns
HIGH-to-LOW Level Output
Output Enable Time
to LOW Level
DM74LS241
DM74LS240
DM74LS241
18
30
30
t
PZL
ns
t
PZH
Output Enable Time
to HIGH Level
Output Disable Time
DM74LS240
DM74LS241
DM74LS240
23
23
25
ns
t
PLZ
ns
from LOW Level
Output Disable Time
DM74LS241
DM74LS240
25
18
t
PHZ
ns
from HIGH Level
Propagation Delay Time
LOW-to-HIGH Level Output
DM74LS241
DM74LS240
DM74LS241
18
18
21
t
PLH
ns
t
PHL
Propagation Delay Time
HIGH-to-LOW Level Output
Output Enable Time
DM74LS240
DM74LS241
DM74LS240
22
22
33
ns
t
PZL
ns
to LOW Level
Output Enable Time
to HIGH Level
DM74LS241
DM74LS240
DM74LS241
33
26
26
t
PZH
ns
相關(guān)PDF資料
PDF描述
74244 Octal 3-STATE Buffer/Line Driver/Line Receiver
7432 Quad 2-Input OR Gate
7433 Quad 2-Input OR Gate
7438 Quad 2-Input NAND Buffers with Open-Collector Outputs(四2輸入與非門(集電極開路輸出))
7438SJ Quad 2-Input NAND Buffers with Open-Collector Outputs
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