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DM74AS21M View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
Manufacturer
DM74AS21M
Fairchild
Fairchild Semiconductor Fairchild
DM74AS21M Datasheet PDF : 4 Pages
1 2 3 4
Absolute Maximum Ratings(Note 1)
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 θJA
N Package
84.0°C/W
M Package
114.0°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
Nom
Max
4.5
5
5.5
2
0.8
2
20
0
70
Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.
Symbol
Parameter
Conditions
Min
Typ
VIK
Input Clamp Voltage
VCC = 4.5V, II = −18 mA
VOH
HIGH Level
IOH = −2 mA,
Output Voltage
VCC = 4.5V to 5.5V
VOL
LOW Level
VCC = 4.5V
Output Voltage
IOL = 20 mA
II
Input Current @ Max Input Voltage VCC = 5.5V, VIH = 7V
IIH
HIGH Level Input Current
VCC = 5.5V, VIH = 2.7V
IIL
LOW Level Input Current
VCC = 5.5V, VIL = 0.4V
IO
Output Drive Current
VCC = 5.5V, VO = 2.25V
ICC
Supply Current
VCC = 5.5V
VCC 2
0.35
30
Outputs HIGH
2.9
Outputs LOW
7.4
Switching Characteristics
over recommended operating free air temperature range
Symbol
Parameter
Conditions
Min
tPLH
Propagation Delay Time
VCC = 4.5V to 5.5V
1
LOW-to-HIGH Level Output
RL = 500
tPHL
Propagation Delay Time
CL = 50 pF
1
HIGH-to-LOW Level Output
Units
V
V
V
mA
mA
°C
Max
Units
1.2
V
V
0.5
V
0.1
mA
20
µA
0.5
mA
112
mA
4.6
mA
12
mA
Max
Units
6
ns
6
ns
www.fairchildsemi.com
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