描述 The SN65HVD11-HT device combines a 3-state differential line driver and differential input line receiver that operates with a single 3.3-V power supply. It is designed for balanced transmission lines and meets or exceeds ANSI TIA/EIA-485-A and ISO 8482:1993, with the exception that the thermal shutdown is removed. This differential bus transceiver is a monolithic integrated circuit designed for bidirectional data communication on multipoint bus-transmission lines. The driver and receiver have active-high and active-low enables, respectively, that can be externally connected together to function as direction control.The driver differential outputs and receiver differential inputs connect 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.特性Operates With a 3.3-V Supply Bus-Pin ESD Protection Exceeds 16-kV Human- Body Model (HBM) 1/8 Unit-Load Option Available (up to 256 Nodes on Bus) Optional Driver Output Transition Times for Signaling Rates(1) of 1 Mbps, 10 Mbps, and 32 Mbps Based on ANSI TIA/EIA-485-A Bus-Pin Short Circuit Protection From –7 V to 12 V Open-Circuit, Idle-Bus, and Shorted-Bus Fail-Safe Receiver Glitch-Free Power-Up and Power-Down Protection for Hot-Plugging Applications SN75176 Footprint Supports Extreme Temperature Applications: Controlled Baselines One Assembly and Test Sites One Fabrication Sites Available in Extreme (–55°C/210°C) Temperature Range(2) Extended Product Life Cycles Extended Product-Change Notifications Product Traceability Texas Instruments’ High TemperatureProducts Use Highly Optimized Silicon (Die)Solutions With Design and Process Enhancements to Maximize Performance OverExtended Temperatures.