1 Features
1• 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 bus–
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 Temperature
Products Use Highly Optimized Silicon (Die)
Solutions With Design and Process
Enhancements to Maximize Performance Over
Extended Temperatures.

2 Applications
• Down-Hole Drilling
• High Temperature Environments
• Digital Motor Controls
• Utility Meters
• Chassis-to-Chassis Interconnects
• Electronic Security Stations
• Industrial Process Controls
• Building Automation
• Point-of-Sale (POS) Terminals and Networks

3 Description
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.