1 Features
1• Exceeds Requirements of TIA-485 Standard
• 1.65-V to 3.6-V Supply for Data and Enable
Signals
• 3-V to 3.6-V Supply for Bus Signals
• SLR Pin Selectable Data Rates: 250 kbps or 20 OnMbps
• 1/8th Unit Load to Support up to 256 Nodes on a
Bus
• Small 3 mm x 3 mm SON Package
• Failsafe Receiver (Bus Open, Bus Shorted, Bus
Idle)
• Operating Temperature Range: –40°C to 125°C
• Bus-Pin Protection More Than:
– ± 15kV HBM Protection
– ± 16kV IEC61000-4-2 Contact Discharge
– ± 16kV IEC61000-4-2 Air Discharge
– 4kV IEC61000-4-4 Fast Transient Burst

2 Applications
• Telecom Infrastructure
• High-Speed Data Links
• Low-Voltage μC Communication

3 Description
The SN65HVD01 is a low-power, 250 kbps or 20
Mbps data rate selectable RS-485 transceiver, utilizing a 1.65-V to 3.6-V supply for data and enable
signals, and a 3.3 V ± 10% supply for bus signals.
The device is designed for applications requiring
synchronous (parallel transceiver) signal timing. OnMbps
chip transient suppression protects the device against
destructive IEC 61000 ESD and EFT transients.
The device combines a differential driver and a
differential receiver, connected internally to form a bus port suitable for half-duplex (two-wire bus)
communication. The device features a wide common-
mode voltage range making it suitable for multi-point
applications over long cable runs. The SN65HVD01 is
available in a tiny, 3 mm x 3 mm, SON package with operation characterized from -40°C to 125°C.