DM74S280 데이터 시트보기 (PDF) - Fairchild Semiconductor
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DM74S280 Datasheet PDF : 5 Pages
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Absolute Maximum Ratings(Note 1)
Supply Voltage
7V
Input Voltage
5.5V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range
−65°C to +150°C
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
Symbol
VCC
VIH
VIL
IOH
IOL
TA
Parameter
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
Min
4.75
2
0
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Nom
5
Min
VI
Input Clamp Voltage
VCC = Min, II=−18 mA
VOH
HIGH Level
Output Voltage
VOL
LOW Level
Output Voltage
VCC = Min, IOH = Max
2.7
VIL = Max, VIH = Min
VCC = Min, IOL =Max
VIH = Min, VIL = Max
II
Input Current @ Max Input Voltage
VCC = Max, VI = 5.5V
IIH
HIGH Level Input Current
VCC = Max, VI = 2.7V
IIL
LOW Level Input Current
VCC = Max, VI = 0.5V
IOS
Short Circuit Output Current
VCC = Max (Note 3)
−40
ICC
Supply Current
VCC Max (Note 4)
Note 2: All typicals are at VCC = 5V, TA = 25°C.
Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 4: ICC is measured with all inputs grounded and all outputs OPEN.
Switching Characteristics
at VCC = 5V and TA = 25°C
Symbol
Parameter
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
From (Input)
To (Output)
Data to ∑ Even
Data to ∑ Even
Data to ∑ Odd
Data to ∑ Odd
RL = 280Ω
CL = 15 pF
Min
Max
21
18
21
18
Max
Units
5.25
V
V
0.8
V
−1
mA
20
mA
70
°C
Typ
(Note 2)
3.4
67
Max
−1.2
0.5
1
50
−2
−100
105
Units
V
V
V
mA
µA
mA
mA
mA
RL = 280Ω
CL = 50 pF
Min
Max
24
21
24
21
Units
ns
ns
ns
ns
3
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