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SN75176A Datasheet

Part NameSN75176A TI
Texas Instruments TI
DescriptionDifferential Bus Transceiver
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Description
The SN75176A differential bus transceiver is a monolithic integrated circuit designed for bidirectional data communication on multipoint bus-transmission lines. It is designed for balanced transmission lines and meets ANSI Standard EIA/TIA-422-B and ITU Recommendation V.11.
The SN75176A 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 externally connected together to function as a direction control. The driver differential outputs and the receiver differential inputs are connected internally to form differential input/output (I/O) bus ports that are designed to offer minimum loading to the bus whenever the driver is disabled or VCC = 0. These ports feature wide positive and negative common mode voltage ranges making the device suitable for party-line applications.

Features
• Bidirectional Transceiver
• Meets or Exceeds the Requirements of ANSI
   Standards EIA/TIA-422-B and ITU
   Recommendations V.11
• Designed for Multipoint Transmission on Long Bus
   Lines in Noisy Environments
• 3-State Driver and Receiver Outputs
• Individual Driver and Receiver Enables
• Wide Positive and Negative Input/Output Bus
   Voltage Ranges
• Driver Output Capability ±60 mA Max
• Thermal-Shutdown Protection
• Driver Positive-Current Limiting and Negative
   Current Limiting
• Receiver Input Impedance 12 kΩ Min
• Receiver Input Sensitivity ±200 mV
• Receiver Input Hysteresis 50 mV Typ
• Operates From Single 5-V Supply
• Lower Power Requirements

Applications
• Low Speed RS485 communication (5 Mbps or less)
• For 10 Mbps, use SN75176B

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