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參數(shù)資料
| 型號(hào)： | 7485 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 4-Bit Magnitude Comparators |
| 中文描述： | 4位幅度比較 |
| 文件頁(yè)數(shù)： | 2/8頁(yè) |
| 文件大?。?/td> | 155K |
| 代理商： | 7485 |
Absolute Maximum Ratings
(Note)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
DM54LS and 54LS
DM74LS
b
55
§
C to
a
125
§
C
0
§
C to
a
70
§
C
b
65
§
C to
a
150
§
C
Storage Temperature Range
Note: The ‘‘Absolute Maximum Ratings’’ are those values
beyond which the safety of the device cannot be guaran-
teed. The device should not be operated at these limits. The
parametric values defined in the ‘‘Electrical Characteristics’’
table are not guaranteed at the absolute maximum ratings.
The ‘‘Recommended Operating Conditions’’ table will define
the conditions for actual device operation.
Recommended Operating Conditions
Symbol
Parameter
DM54LS85
DM74LS85
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
0.4
b
0.4
mA
I
OL
Low Level Output Current
4
8
mA
T
A
Free Air Operating Temperature
b
55
125
0
70
§
C
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
2.5
3.4
V
DM74
2.7
3.4
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
4 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
A
k
B
0.1
A
l
B
0.1
mA
Others
0.3
I
IH
High Level Input
Current
V
CC
e
Max
V
I
e
2.7V
A
k
B
20
A
l
B
20
m
A
Others
60
I
IL
Low Level Input
Current
V
CC
e
Max
V
I
e
0.4V
A
k
B
b
0.4
A
l
B
b
0.4
mA
Others
b
1.2
I
OS
Short Circuit
Output Current
V
CC
e
Max
(Note 2)
DM54
b
20
b
100
mA
DM74
b
20
b
100
I
CC
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.
Supply Current
V
CC
e
Max (Note 3)
10
20
mA
Note 3:
I
CC
is measured with all outputs open, A
e
B grounded and all other inputs at 4.5V.
2
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 7485 WAF | 制造商:Texas Instruments 功能描述: |
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| 748507-1 | 功能描述:D-Sub標(biāo)準(zhǔn)連接器 15 RCPT CS W/SL HDP-20 RoHS:否 制造商:Omron Electronics 位置/觸點(diǎn)數(shù)量:9 排數(shù):2 型式:Female 安裝風(fēng)格:Through Hole 安裝角:Right 端接類(lèi)型:Solder 過(guò)濾: |
| 748511-000 | 制造商:TE Connectivity 功能描述:MTC100-YC1-002 - Bag |
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