DS36277
www.ti.com
SNLS086E –JULY 1998–REVISED APRIL 2013
Dominant Mode Multipoint Transceiver
Check for Samples: DS36277
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FEATURES
DESCRIPTION
The DS36277 Dominant Mode Multipoint Transceiver
is designed for use on bi-directional differential
busses. It is optimal for use on Interfaces that utilize
Society of Automotive Engineers (SAE) J1708
Electrical Standard.
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FAILSAFE Receiver, RO = HIGH for:
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OPEN Inputs
Terminated Inputs
SHORTED Inputs
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Optimal for Use in SAE J1708 Interfaces
The device is similar to standard TIA/EIA-485
transceivers, but differs in enabling scheme. The
Driver's Input is normally externally tied LOW, thus
providing only two states: Active (LOW), or Disabled
(OFF). When the driver is active, the dominant mode
is LOW, conversely, when the driver is disabled, the
bus is pulled HIGH by external bias resistors.
Compatible with Popular Interface Standards:
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TIA/EIA-485 and TIA/EIA-422-A
CCITT Recommendation V.11
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Bi-Directional Transceiver
Designed for Multipoint Transmission
Wide Bus Common Mode Range
(−7V to +12V)
Available in PDIP and SOIC Packages
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The receiver provides a FAILSAFE feature that
ensures a known output state when the Interface is in
the following conditions: Floating Line, Idle Line (no
active drivers), and Line Fault Conditions (open or
short). The receiver output is HIGH for the following
conditions: Open Inputs, Terminated Inputs (50Ω), or
Shorted Inputs. FAILSAFE is a highly desirable
feature when the transceivers are used with
Asynchronous Controllers such as UARTs.
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Connection and Logic Diagram
See Package Number D (R-PDSO-G8)
or
P (R-PDIP-T8)
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PRODUCTION DATA information is current as of publication date.
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