SN65HVD179

SN65HVD179 www.ti.com .................................................................................................................................................... SLLS668C – FEBRUARY 2006 – REVISED JULY 2008 5-V FULL-DUPLEX RS-485/RS-422 DRIVER AND BALANCED RECEIVER FEATURES 1 Designed for INTERBUS Applications Balanced Receiver Thresholds 1/2 Unit-Load (up to 64 nodes on the bus) Bus-Pin ESD Protection 15 kV HBM Bus-Fault Protection of –7V to 12V Thermal Shutdown Protection Power-Up/Down Glitch-free Bus Inputs and Outputs Designed for RS-422 and RS-485 Networks APPLICATIONS Digital Motor Control Utility Meters Chassis-to-Chassis Interconnections Electronic Security Stations Industrial, Process, and Building Automation Point-of-Sale (POS) Terminals and Networks DTE/DCE Interfaces DESCRIPTION The SN65HVD179 is a differential line driver and differential-input line receiver that operates with a 5-V power supply. Each driver and receiver has separate input and output pins for full-duplex bus communication designs. They are designed for balanced transmission lines and interoperation with ANSI TIA/EIA-485A, TIA/EIA-422-B, ITU-T v.11, and ISO 8482:1993 standard-compliant devices. The differential bus driver and receiver are monolithic, integrated circuits designed for full-duplex bi-directional data communication on multipoint bus-transmission lines at signaling rates(1) up to 25 Mbps. The SN65HVD179 is fully enabled with no external enablin...