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參數(shù)資料
| 型號(hào)： | 54LS28LMQB |
| 英文描述： | Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits |
| 中文描述： | 四2輸入或非門 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 163K |
| 代理商： | 54LS28LMQB |
’LS258B Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted) (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 1)
I
IL
Low Level Input
Current
V
CC
e
Max,
V
I
e
0.4V
Select
b
0.8
mA
Other
b
0.4
I
OZH
Off-State Output Current
with High Level Output
Voltage Applied
V
CC
e
Max, V
O
e
2.7V
V
IH
e
Min, V
IL
e
Max
20
m
A
I
OZL
Off-State Output Current
with Low Level Output
Voltage Applied
V
CC
e
Max, V
O
e
0.4V
V
IH
e
Min, V
IL
e
Max
b
20
m
A
I
OS
Short Circuit
Output Current
V
CC
e
Max
(Note 2)
DM54
b
20
b
100
mA
DM74
b
20
b
100
I
CCH
Supply Current with
Outputs High
V
CC
e
Max (Note 3)
4.1
7
mA
I
CCL
Supply Current with
Outputs Low
V
CC
e
Max (Note 3)
9
14
mA
I
CCZ
Supply Current with
Outputs Disabled
V
CC
e
Max (Note 3)
12
19
mA
Note 1:
All typicals are at V
CC
e
5V, T
A
e
25
§
C.
Note 2:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 3:
I
CC
is measured with all outputs open and all possible inputs grounded, while achieving the stated output conditions.
’LS258B 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 4)
Output
Control to Y
26
ns
t
PLZ
Output Disable Time from
Low Level Output (Note 4)
Output
Control to Y
25
ns
Note 4:
C
L
e
5 pF.
4
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