HONG KONG KEEP BOOMING TECHNOLOGY CO.,LIMITED
HONG KONG KEEP BOOMING TECHNOLOGY CO.,LIMITED
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SN65HVD485EDR VP485 Transceiver Half RS422, RS485 8-SOIC Drivers, Receivers
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Features
• Bus-pin ESD protection up to 15 kV
• 1/2 Unit load: up to 64 nodes on a bus
• Bus-open-failsafe receiver
• Glitch-free power-up and power-down bus inputs
and outputs
• Available in small VSSOP-8 package
• Meets or exceeds the requirements of the TIA/
EIA-485A standard
• Industry-standard SN75176 footprint
Applications
• Motor control
• Power inverters
• Industrial automation
• Building automation networks
• Industrial process control
• Battery-powered applications
• Telecommunications equipment
Description
The SN65HVD485E device is a half-duplex transceiver designed for RS-485 data bus networks. Powered by a 5-V supply, it is fully compliant with the TIA/EIA-485A standard. This device is suitable for data transmission up to 10 Mbps over long twistedpair cables and is designed to operate with very low supply current, typically less than 2 mA, exclusive of the load. When the device is in the inactive shutdown mode, the supply current drops below 1 mA.
The wide common-mode range and high ESD protection levels of this device make it suitable for demanding applications such as: electrical inverters, status/command signals across telecom racks, cabled chassis interconnects, and industrial automation networks where noise tolerance is essential. The SN65HVD485E device matches the industry-standard footprint of the SN75176 device. Power-on reset circuits keep the outputs in a high-impedance state until the supply voltage has stabilized. A thermalshutdown function protects the device from damage due to system-fault conditions. The SN65HVD485E device is characterized for operation from –40°C to 85°C air temperature.