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DM74ALS273SJ bảng dữ liệu(PDF) 3 Page - Fairchild Semiconductor

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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 positive edge of the Clock is used for reference.
Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.
Switching Characteristics
over recommended operating free air temperature range.
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
0
°C to +70°C
Storage Temperature Range
−65°C to +150°C
Typical
θ
JA
N Package
60.0
°C/W
M Package
79.0
°C/W
Symbol
Parameter
Min
Nom
Max
Units
VCC
Supply Voltage
4.5
5
5.5
V
VIH
HIGH Level Input Voltage
2
V
VIL
LOW Level Input Voltage
0.8
V
IOH
HIGH Level Output Current
−2.6
mA
IOL
LOW Level Output Current
24
mA
fCLK
Clock Frequency
0
35
MHz
tW(CLK)
Width of Clock Pulse
HIGH
14
ns
LOW
14
ns
tW
Width of Clear Pulse
LOW
10
ns
tSU
Data Setup Time (Note 2)
10
ns
Clear Inactive
15
tH
Data Hold Time
0
ns
TA
Free Air Operating Temperature
0
70
°C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VIK
Input Clamp Voltage
VCC = 4.5V, II = −18 mA
−1.5
V
VOH
HIGH Level
VCC = 4.5V
IOH = −2.6 mA
2.4
3.3
V
Output Voltage
VCC = 4.5V to 5.5V
IOH = −400 µAVCC − 2V
VOL
LOW Level
VCC = 4.5V
IOL = 12 mA
0.25
0.4
V
Output Voltage
IOL = 24 mA
0.35
0.5
V
II
Input Current @ Maximum Input Voltage VCC = 5.5V, VIH = 7V
0.1
mA
IIH
HIGH Level Input Current
VCC = 5.5V, VIH = 2.7V
20
µA
IIL
LOW Level Input Current
VCC = 5.5V, VIL = 0.4V
−0.2
mA
IO
Output Drive Current
VCC = 5.5V
VO = 2.25V
−30
−112
mA
ICC
Supply Current
VCC = 5.5V
Outputs HIGH
11
20
mA
Outputs OPEN
Outputs LOW
19
29
mA
Symbol
Parameter
Conditions
From
To
Min
Max
Units
fMAX
Maximum Clock Frequency
VCC = 4.5V to 5.5V
35
MHz
tPHL
Propagation Delay Time
RL = 500Ω
Clear
Any Q
4
18
ns
HIGH-to-LOW Level Output
CL = 50 pF
tPLH
Propagation Delay Time
Clock
Any Q
2
12
ns
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
Clock
Any Q
3
15
ns
HIGH-to-LOW Level Output


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