TISN65HVD485EDR
Overview
The SN65HVD485EDR is a half-duplex transceiver designed for RS-485 and RS-422 data communications. It operates from a 5V supply and integrates high-level ESD protection up to 15 kV to ensure robust performance in harsh environments. This device is a modern, low-power drop-in replacement for the industry-standard SN75176 footprint.
Why Choose This Part
This transceiver features a 1/2 unit load design, allowing up to 64 nodes to be connected on a single bus. It includes a bus-open-failsafe receiver that ensures a logic-high output when the inputs are open-circuited, and it provides glitch-free power-up/down cycles to prevent data corruption during transitions.
Applications
Getting Started
Implementation requires a 5V supply and a standard 120-ohm termination resistor at both ends of the bus. For prototyping, this part can be used on SOIC-to-DIP adapter boards or integrated into custom PCBs following the standard SN75176 pinout. Ensure bypass capacitors are placed close to the VCC pin to minimize noise.
