SN75176AP Datasheet | Texas Instruments

Features - Bidirectional Transceiver - Meets or Exceeds the Requirements of ANSI Standards EIA/TIA-422-B and ITU Remendations 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 m A Max - Thermal-Shutdown Protection - Driver Positive-Current Limiting and Negative Current Limiting - Receiver Input Impedance 12 kΩ Min - Receiver Input Sensitivity ±200 m V - Receiver Input Hysteresis 50 m V Typ - Operates From Single 5-V Supply - Lower Power Requirements 2 Applications - Low Speed RS485 munication (5 Mbps or less) - For 10 Mbps, use SN75176B 3 Description The SN75176A differential bus transceiver is a monolithic integrated circuit designed for bidirectional data munication on multipoint bus-transmission lines. It is designed for balanced transmission lines and meets ANSI Standard EIA/TIA-422-B and ITU Remendation V.11. The SN75176A bines 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 activelow 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 monmode voltage ranges making the device suitable for party-line applications. The driver is designed to handle loads up to 60 m A of sink or source current. The driver features positive- and negative-current limiting and thermal shutdown for protection from line fault conditions. Thermal shutdown is designed to occur at a junction temperature of approximately 150°C. The...