DM74AS280 Ver la hoja de datos (PDF) - Fairchild Semiconductor
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DM74AS280 Datasheet PDF : 6 Pages
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Absolute Maximum Ratings(Note 1)
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Storage Temperature Range
Typical θJA
N Package
M Package
7V
7V
0°C to +70°C
−65°C to +150°C
77.0°C/W
108.0°C/W
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
Typ
4.5
5
2
0
Electrical Characteristics
Over recommended free-air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.
Symbol
Parameter
Conditions
Min
VIK
Input Clamp Voltage
VOH
HIGH Level Output Voltage
VOL
LOW Level Output Voltage
II
Input Current @ Max Input Voltage
IIH
HIGH Level Input Current
IIL
LOW Level Input Current
IO
Output Drive Current
ICC
Supply Current
VCC = 4.5V, II = −18 mA
IOH = −2 mA, VCC = 4.5V to 5.5V
VCC = 4.5V, IOL = Max
VCC = 5.5V, VIH = 7V
VCC = 5.5V, VIH = 2.7V
VCC = 5.5V, VIL = 0.4V
VCC = 5.5V, VO = 2.25V
VCC = 5.5V
VCC − 2
−30
Switching Characteristics
over recommended operating free air temperature range
Symbol
Parameter
Conditions
tPLH
Propagation Delay Time,
VCC = 4.5V to 5.5V,
LOW-to-HIGH Level Output
CL = 50 pF,
tPHL
Propagation Delay Time,
RL = 500Ω
HIGH-to-LOW Level Output
tPLH
Propagation Delay Time,
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time,
HIGH-to-LOW Level Output
From
Data
To
∑Even
Data
∑Odd
Max
5.5
0.8
−2
20
70
Typ
0.35
25
Min
3
3
3
3
Units
V
V
V
mA
mA
°C
Max
−1.2
0.5
0.1
20
−0.5
−112
40
Units
V
V
V
mA
µA
mA
mA
mA
Max
Units
12
ns
11
ns
12
ns
11.5
ns
3
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