參數(shù)資料
型號: DM74AS873
廠商: Fairchild Semiconductor Corporation
英文描述: 9-Bit Bus Transceiver With 3-State Outputs 24-TSSOP -40 to 85
中文描述: 雙4位D型透明鎖存器
文件頁數(shù): 3/5頁
文件大?。?/td> 50K
代理商: DM74AS873
3
www.fairchildsemi.com
D
Absolute Maximum Ratings
(Note 1)
Note 1:
The
Absolute Maximum Ratings
are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The
Recommended Operating Conditions
table will define the conditions
for actual device operation.
Recommended Operating Conditions
Note 2:
The (
) arrow indicates the negative edge of the enable is used for reference.
Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at V
CC
=
5V, T
A
=
25
°
C.
Symbol
Parameter
V
IK
Input Clamp Voltage
V
CC
=
4.5V, I
I
=
18 mA
V
OH
HIGH Level
V
CC
=
4.5V, V
IL
=
Max
Output Voltage
I
OH
=
Max
I
OH
=
2 mA, V
CC
=
4.5V to 5.5V
V
OL
LOW Level
V
CC
=
4.5V, V
IH
=
2V
Output Voltage
I
OL
=
Max
I
I
Input Current at Max
V
CC
=
5.5V, V
IH
=
7V
Input Voltage
I
IH
HIGH Level Input Current
V
CC
=
5.5V, V
IH
=
2.7V
I
IL
LOW Level Input Current
V
CC
=
5.5V, V
IL
=
0.4V
I
O
(Note 3)
Output Drive Current
V
CC
=
5.5V, V
O
=
2.25V
I
OZH
OFF-State Output Current,
V
CC
=
5.5V, V
IH
=
2V
HIGH Level Voltage Applied
V
O
=
2.7V
I
OZL
OFF-State Output Current,
V
CC
=
5.5V, V
IH
=
2V
LOW Level Voltage Applied
V
O
=
0.4V
I
CC
Supply Current
V
CC
=
5.5V
Outputs Open
Note 3:
The output conditions have been chosen to produce a current that closely approximates one half of the true short circuit current, I
OS
.
Supply Voltage
Input Voltage
Voltage Applied to Disabled Output
Operating Free Air Temperature Range
Storage Temperature Range
Typical
θ
JA
N Package
7V
7V
5.5V
0
°
C to
+
70
°
C
65
°
C to
+
150
°
C
47.0
°
C/W
Symbol
Parameter
Min
4.5
2
Nom
5
Max
5.5
Units
V
V
V
mA
mA
V
CC
V
IH
V
IL
I
OH
I
OL
t
W
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Pulse Width
0.8
15
48
Enable HIGH
5.5
ns
Clear LOW
3.5
2
3
0
t
SU
t
H
T
A
Data Setup Time (Note 2)
Data Hold Time (Note 2)
Free Air Operating Temperature
ns
ns
°
C
70
Conditions
Min
Typ
Max
1.2
Units
V
2.4
3.3
V
V
CC
2
V
0.35
0.5
V
0.1
mA
20
0.5
112
μ
A
mA
mA
30
50
μ
A
50
μ
A
Outputs HIGH
Outputs LOW
Outputs Disabled
68
67
80
110
109
129
mA
mA
mA
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