DIFFERENTIAL BUS TRANSCEIVER
D Meets or Exceeds the Requirements of
TIA/EIA-422-B, TIA/EIA-485-A, and ITU
Recommendations V.11 and X.27
D Recommended for PROFIBUS Applications
D Operates at Data Rates up to 35 MBaud
D Operating Temperature Range
. . . – 25°C to 85°C
D Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
D Low Supply-Current Requirement
. . . 30 mA Max
D Wide Positive and Negative Input/Output
D Thermal-Shutdown Protection
D Driver Positive- and Negative-Current
D Receiver Input Hysteresis
D Glitch-Free Power-Up and Power-Down
D Receiver Open-Circuit Fail-Safe Design
D Package Options Include Plastic
Small-Outline (D) Package and (P) DIPs
SLLS295A – APRIL 1998 – REVISED DECEMBER 1999
D† OR P PACKAGE
† The D package is available taped and
reeled. Add the suffix R to the device
type (e.g., SN65ALS1176DR).
The SN65ALS1176 differential bus transceiver is designed for bidirectional data communication on multipoint
bus transmission lines. It is designed for balanced transmission lines and meets TIA/EIA-422-B, TIA/EIA-485-A,
and ITU Recommendations V.11 and X.27.
The SN65ALS1176 combines a 3-state differential line driver and a differential input line receiver, both of which
operate from a single 5-V power supply. The driver and receiver have active-high and active-low enables,
respectively, that can be connected together externally to function as a direction control. The driver differential
outputs and the receiver differential inputs are connected internally to form a differential input/output (I/O) bus
port that is designed to offer minimum loading to the bus when the driver is disabled or VCC = 0. This port features
wide positive and negative common-mode voltage ranges, making the device suitable for party-line
The SN65ALS1176 is characterized for operation from – 25°C to 85°C.
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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