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DM74AS163M Datasheet(HTML) 4 Page - Fairchild Semiconductor

Part No. DM74AS163M
Description  Synchronous 4-Bit Counter with Asynchronous Clear . Synchronous 4-Bit Counter
Download  7 Pages
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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DM74AS163M Datasheet(HTML) 4 Page - Fairchild Semiconductor

   
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4
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
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
71.5
°C/W
M Package
101.0
°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
−2mA
IOL
LOW Level Output Current
20
mA
fCLK
Clock Frequency
0
75
MHz
tSU
tSETUP, Set-Up Time
Data; A, B, C, D
8
ns
En P, En T
8
ns
LOAD
8ns
CLEAR (Only for
LOW
12
ns
DM74AS163)
HIGH
9
Set-up 1
CLEAR
8ns
(Only for DM74AS161)
tH
tHOLD, Hold Time
Data; A, B, C, D
0
ns
En P, En T
0
ns
LOAD
0ns
CLEAR (Only for DM74AS163)
0ns
Hold 0
CLEAR
0ns
(Only for DM74AS161)
tWCLK
Width of Clock Pulse
6.7
ns
tWCLR
Width of Clear Pulse, (DM74ASAS161 LOW)
8
ns


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