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BTK1A16P View Datasheet(PDF) - Agere -> LSI Corporation

Part Name
Description
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BTK1A16P
Agere
Agere -> LSI Corporation Agere
BTK1A16P Datasheet PDF : 18 Pages
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Data Sheet
October 2001
Dual Differential Transceivers
BTK1A and BTM1A
Electrical Characteristics
For variations in electrical characteristics over the temperature range, see Figure 10 on page 10 through Figure 12
on page 11.
Table 3. Power Supply Current Characteristics
TA = 40 °C to +125 °C, VCC = 5 V ± 0.5 V.
Parameter
Symbol
Min
Typ
Max
Unit
Power Supply Current (VCC = 5.5 V):
All Outputs Disabled:
BTK1A
ICC
40
65
mA
BTM1A
ICC
80
115
mA
All Outputs Enabled:
BTK1A
ICC
20
35
mA
BTM1A
ICC
80
115
mA
Third State
These drivers produce pseudo-ECL levels, and the third-state mode is different than the conventional TTL devices.
When a driver is placed in the third state, the bases of the output transistors are pulled low, bringing the outputs
below the active-high and active-low levels. This voltage is typically 2 V for most drivers. In the bidirectional bus
application, the driver of one device, which is in its third state, may be back driven by another driver on the bus
whose voltage in the low state is lower than the third-stated device. This could come about due to differences in the
driversindependent power supplies. In this case, the device in the third state will control the line, thus clamping
the line and reducing the signal swing. If the difference voltage between the independent power supplies and the
drivers is small, then this consideration can be ignored. In the typical case, the difference voltage can be as much
as 1 V without significantly affecting the amplitude of the driving signal.
Agere Systems Inc.
3
 

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