3.3-V Full-Duplex RS-485 Transceivers
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SN65HVD70, SN65HVD71, SN65HVD73 S...
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SN65HVD70, SN65HVD71, SN65HVD73 SN65HVD74, SN65HVD76, SN65HVD77
SLLSEI9G – MAY 2014 – REVISED OCTOBER 2019
SN65HVD7x 3.3-V Full-Duplex RS-485 Transceivers with ±12-kV IEC ESD
1 Features
1 1/8 Unit-load options available
– Up to 256 Nodes on the bus Bus I/O Protection
– > ±30-kV HBM protection
– > ±12-kV IEC61000-4-2 Contact discharge
– > ±4-kV IEC61000-4-4 Fast transient burst Extended industrial temperature range:
–40°C to 125°C Large receiver hysteresis (70 mV) for noise
rejection Low power consumption
– < 1.1-mA Quiescent current during operation
– Low Standby supply current: 10 nA Typical, < 5 µA (maximum)
Glitch-free power-up and power-down protection for hot-plugging applications
5-V Tolerant logic inputs compatible with 3.3-V or 5-V controllers
Signaling rate options optimized for: 400 kbps (70, 71), 20 Mbps (73, 74), 50 Mbps (76, 77)
2 Applications
E-meters Industrial automation Building automation Security and surveillance Encoders and decoders
3 Description
These devices extend the RS-485 portfolio with a family of full-duplex transceivers with robust 3.3-V drivers and receivers and high levels of ESD protection. The ESD protection includes > ±30-kV HBM and > ±12-kV IEC61000-4-2 contact discharge. The large receiver hysteresis of the SN65HVD7x devices provides immunity to conducted differential noise and the wide operating temperature enables reliability ...
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