DS7640 Datasheet, PDF (2/4 Pages) National Semiconductor (TI) – Quad NOR Unified Bus Receiver

Absolute Maximum Ratings (Note 1)
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Supply Voltage
7 0V
Input Voltage
5 5V
Storage Temperature Range
b65 C to a150 C
Maximum Power Dissipation at 25 C
Cavity Package
Molded Package
1308 mW
1207 mW
Lead Temperature (Soldering 4 seconds)
260 C
Derate cavity package 8 7 mW C above 25 C derate molded package
9 7 mW C above 25 C
Operating Conditions
Min
Supply Voltage (V_CC)
DS7640
45
DS8640
4 75
Temperature (T_A)
DS7640
b55
DS8640
0
Max
55
5 25
a125
a70
Units
V
V
C
C
Electrical Characteristics
The following apply for V_MIN ^s V_CC ^s V_MAX T_MIN ^s T_A ^s T_MAX unless otherwise specified (Notes 2 and 3)
Symbol
Parameter
Conditions
Min Typ
V_IH
High Level Input Threshold V_OUT e V_OL
DS7640
DS8640
1 80 1 50
1 70 1 50
V_IL
Low Level Input Threshold V_OUT e V_OH
DS7640
DS8640
1 50
1 50
I_IH
I_IL
V_OH
V_OL
I_OS
I_CC
Maximum Input Current
Maximum Input Current
Output Voltage
Output Voltage
Output Short Circuit Current
Power Supply Current
V_IN e 4V
V_CC e V_MAX
V_CC e0V
V_IN e 0 4V V_CC e V_MAX
I_OH e b400 mA V_IN e V_IL
I_OL e 16 mA V_IN e V_IH
V_IN e 0 5V V_OS e 0V V_CC e V_MAX (Note 4)
V_IN e 4V (Per Package)
30
10
10
24
0 25
b18
25
Max
1 20
1 30
80
50
50
04
b55
40
Units
V
V
V
V
mA
mA
mA
V
V
mA
mA
Switching Characteristics T_A e 25 C nominal power supplies unless otherwise noted
Symbol
Parameter
Conditions
Min
Typ
Max
Units
t_pd
Propagation Delays
(Notes 5 and 6)
Input to Logic ‘‘1’’ Output
10
23
35
ns
Input to Logic ‘‘0’’ Output
10
15
30
ns
Note 1 ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed Except for ‘‘Operating Temperature Range’’
they are not meant to imply that the devices should be operated at these limits The table of ‘‘Electrical Characteristics’’ provides conditions for actual device
operation
Note 2 Unless otherwise specified min max limits apply across the b55 C to a125 C temperature range for the DS7640 and across the 0 C to a70 C range for
the DS8640 All typical values are T_A e 25 C and V_CC e 5V
Note 3 All currents into device pins shown as positive out of device pins as negative all voltages referenced to ground unless otherwise noted All values shown
as max or min on absolute value basis
Note 4 Only one output at a time should be shorted
Note 5 Fan-out of 10 load C_LOAD e 15 pF total measured from V_IN e 1 5V to V_OUT e 1 5V V_IN e 0V to 3V pulse
Note 6 Apply to V_CC e 5V T_A e 25 C
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