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參數(shù)資料
| 型號(hào)： | 54LS259DMQB |
| 英文描述： | Addressable D-Type Latch |
| 中文描述： | 尋址D型鎖存器 |
| 文件頁(yè)數(shù)： | 3/8頁(yè) |
| 文件大?。?/td> | 163K |
| 代理商： | 54LS259DMQB |
’LS257B Switching Characteristics
at V
CC
e
5V and T
A
e
25
§
C (See Section 1 for Test Waveforms and Output Load)
From (Input)
To (Output)
R
L
e
667
X
Symbol
Parameter
C
L
e
45 pF
C
L
e
150 pF
Units
Min
Max
Min
Max
t
PLH
Propagation Delay Time
Low to High Level Output
Data to
Output
18
27
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Data to
Output
18
27
ns
t
PLH
Propagation Delay Time
Low to High Level Output
Select to
Output
28
35
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Select to
Output
35
42
ns
t
PZH
Output Enable Time
to High Level Output
Output
Control to Y
15
27
ns
t
PZL
Output Enable Time
to Low Level Output
Output
Control to Y
28
38
ns
t
PHZ
Output Disable Time from
High Level Output (Note 1)
Output
Control to Y
26
ns
t
PLZ
Output Disable Time from
Low Level Output (Note 1)
Output
Control to Y
25
ns
Note 1:
C
L
e
5 pF.
Recommended Operating Conditions
Symbol
Parameter
DM54LS258B
DM74LS258B
Units
Min
Nom
Max
Min
Nom
Max
V
CC
Supply Voltage
4.5
5
5.5
4.75
5
5.25
V
V
IH
High Level Input Voltage
2
2
V
V
IL
Low Level Input Voltage
0.7
0.8
V
I
OH
High Level Output Current
b
1
b
2.6
mA
I
OL
Low Level Output Current
12
24
mA
T
A
Free Air Operating Temperature
b
55
125
0
70
§
C
’LS258B Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 1)
V
I
Input Clamp Voltage
V
CC
e
Min, I
I
e b
18 mA
b
1.5
V
V
OH
High Level Output
Voltage
V
CC
e
Min, I
OH
e
Max
V
IL
e
Max, V
IH
e
Min
DM54
2.4
3.4
V
DM74
2.4
3.1
V
OL
Low Level Output
Voltage
V
CC
e
Min, I
OL
e
Max
V
IL
e
Max, V
IH
e
Min
DM54
0.25
0.4
DM74
0.35
0.5
V
I
OL
e
12 mA, V
CC
e
Min
DM74
0.25
0.4
I
I
Input Current
@
Max
Input Voltage
V
CC
e
Max,
V
I
e
7V
Select
0.2
mA
Other
0.1
I
IH
High Level Input
Current
V
CC
e
Max,
V
I
e
2.7V
Select
40
m
A
Other
20
3
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 54LS259FM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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| 54LS259LM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 54LS259LMQB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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