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DS7834 Datasheet, PDF (2/6 Pages) National Semiconductor (TI) – Quad TRI-STATE Bus Transceivers
Absolute Maximum Ratings (Note 1)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
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Supply Voltage
7 0V
Input Voltage
5 5V
Output Voltage
5 5V
Maximum Power Dissipation at 25 C
Cavity Package
Molded Package
1509 mW
1476 mW
Derate cavity package 10 1 mW C above 25 C derate molded package
11 8 mW C above 25 C
Storage Temperature
b65 C to a150 C
Lead Temperature (Soldering 4 seconds)
260 C
Operating Conditions
Min
Supply Voltage (VCC)
DS7834
45
DS8834
4 75
Temperature (TA)
DS7834
DS8834
b55
0
Max
55
5 25
a125
a70
Units
V
V
C
C
Electrical Characteristics (Notes 2 and 3)
Symbol
Parameter
Conditions
Min Typ Max Units
DISABLE DRIVER INPUT
VIH
High Level Input Voltage
VIL
Low Level Input Voltage
IIH
High Level Input Current
IIL
Low Level Input Current
IIND
Driver Diasbled Input
Low Current
VCC e Min
VCC e Min
VCC e Max VIN e 2 4V
VIN e 5 5V
VCC e Max VIN e 0 4V
Driver Disable Input e 2 0V VIN e 0 4V
20
V
08
V
40
mA
1 0 mA
b1 0 b1 6 mA
b40 mA
VCL
Input Clamp Diode
RECEIVER INPUT BUS OUTPUT
VCC e 5 0V IIN e b12 mA TA e 25 C
b0 8 b1 5 V
VTH
High Level Threshold Voltage VCC e Max
DS7834
DS8834
1 4 1 75 2 1
V
1 5 1 75 2 0
V
VTL
Low Level Threshold Voltage VCC e Min
DS7834
DS8834
0 8 1 35 1 6
V
0 8 1 35 1 5
V
IBH
Bus Current Output
Disabled or High
VOH
Logic ‘‘1’’ Output Voltage
VOL
Logic ‘‘0’’ Output Voltage
IOS
Output Short Circuit Current
RECEIVER OUTPUT
VBUS e 4 0V VCC e Max Disable Input e 2 0V
VCC e 0V
VCC e Max VSUS e 0 4V Disable Input e 2 0V
VCC e Min IOUT e b5 2 mA DS7834
IOUT e b10 4 mA DS7834
VCC e Min IOUT e 50 mA
IOUT e 32 mA
VCC e Max (Note 4)
25
80
mA
50
80
mA
b40 mA
2 4 2 75
V
2 4 2 75
V
0 28 0 5
V
04
V
b40 b62 b120 mA
VOH
Logic ‘‘1’’ Output Voltage
VCC e Min IOUT e b2 0 mA DS7834
IOUT e b5 2 mA DS8834
VOL
Logic ‘‘0’’ Output Voltage
VCC e Min IOUT e 16 mA
IOS
Output Short Circuit Current VCC e Max (Note 4)
DS7834
DS8834
24 30
V
24 29
V
0 22 0 4
V
b28 b40 b70 mA
b30
b70 mA
ICC
Supply Current
VCC e Max
75
95
mA
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 DS7834 and across the 0 C to a70 C range for
the DS8834 All typicals are given for VCC e 5 0V and TA e 25 C
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
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