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DM74AS648NTX View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
Manufacturer
DM74AS648NTX
Fairchild
Fairchild Semiconductor Fairchild
DM74AS648NTX Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
Absolute Maximum Ratings(Note 3)
Supply Voltage
7V
Input Voltage
Control Inputs
7V
I/O Ports
5.5V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range
65°C to +150°C
Typical θJA
N Package
41.1°C/W
M Package
81.5°C/W
Note 3: The Absolute Maximum Ratingsare 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 Conditionstable will define the conditions
for actual device operation.
Recommended Operating Conditions
Symbol
Parameter
Min
VCC
Supply Voltage
4.5
VIH
HIGH Level Input Voltage
2
VIL
LOW Level Input Voltage
IOH
HIGH Level Output Current
IOL
LOW Level Output Current
fCLK
Clock Frequency
0
tW
Width of Clock Pulse
HIGH
5
LOW
6
tSU
Data Setup Time (Note 4)
6
tH
Data Hold Time (Note 4)
0
TA
Free Air Operating Temperature
0
Note 4: The () arrow indicates the positive edge of the Clock is used for reference.
Nom
5
Max
5.5
0.8
15
48
90
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
VOH
HIGH Level
Output Voltage
VOL
LOW Level
Output Voltage
II
Input Current @ Max
Input Voltage
IIH
HIGH Level Input Current
VCC = 4.5V, II = −18 mA
VCC = 4.5V, VIL = Max
IOH = Max
VIH = Min
IOH = −3 mA
VCC = 4.5V to 5.5V, IOH = −2 mA
VCC = 4.5V, VIL = Min
VIH = 2V, IOL = Max
VCC = 5.5V
VI = 7V
Control Inputs
VI = 5.5V
A or B Ports
VCC = 5.5V, VIH = 2.7V
Control Inputs
(Note 5)
A or B Ports
2
2.4
VCC 2
3.2
0.35
IIL
LOW Level Input Current
VCC = 5.5V, VIL = 0.4V
Control Inputs
(Note 5)
A or B Ports
IO
Output Drive Current
ICC
Supply Current
VCC = 5.5V, VO = 2.25V
30
VCC = 5.5V
Outputs HIGH
120
DM74AS646 Outputs LOW
130
Outputs Disabled
130
Outputs HIGH
110
DM74AS648 Outputs LOW
120
Outputs Disabled
120
Note 5: For I/O ports, the parameters IIH and IIL include the OFF-State current, IOZH and IOZL.
Units
V
V
V
mA
mA
MHz
ns
ns
ns
ns
°C
Max
Units
1.2
V
V
0.5
V
0.1
mA
0.1
20
µA
70
0.5
mA
0.75
112
mA
195
211
211
mA
185
195
195
www.fairchildsemi.com
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