3.3-V Full-Duplex RS-485 Drivers and Receivers
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SN65HVD30, SN65HVD31, SN65HVD32 S...
Description
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SN65HVD30, SN65HVD31, SN65HVD32 SN65HVD33, SN65HVD34, SN65HVD35
SLLS665L – SEPTEMBER 2005 – REVISED JANUARY 2017
SN65HVD3x 3.3-V Full-Duplex RS-485 Drivers and Receivers
1 Features
1 1/8 Unit-Load Option Available (Up to 256 Nodes on the Bus)
Bus-Pin ESD Protection Exceeds 15-kV HBM Optional Driver Output Transition Times for
Signaling Rates of 1 Mbps, 5 Mbps and 26 Mbps – Line Signaling Rate is the Number of Voltage
Transitions Made per Second Expressed in Units of bps (bits per second) Low-Current Standby Mode: <1 μA Glitch-Free Power-Up and Power-Down Protection for Hot-Plugging Applications 5-V Tolerant Inputs Bus Idle, Open, and Short-Circuit Failsafe Driver Current Limiting and Thermal Shutdown Designed for RS-422 and RS-485 Networks 5-V Devices Available, SN65HVD50-55
2 Applications
Utility Meters DTE and DCE Interfaces Industrial, Process, and Building Automation Point-of-Sale (POS) Pins and Networks
3 Description
The SN65HVD3x devices are 3-state differential line drivers and differential-input line receivers that operate with 3.3-V power supply.
Each driver and receiver has separate input and output pins for full-duplex bus communication designs. They are designed for RS-422 and RS-485 data transmission over cable lengths of up to 1500 meters.
The SN65HVD30, SN65HVD31, and SN65HVD32 devices are fully enabled with no external enabling pins.
The SN65HVD3...
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