{"id":6269,"date":"2026-06-12T10:29:52","date_gmt":"2026-06-12T10:29:52","guid":{"rendered":"https:\/\/materialparts.com\/sn65hvd75dr\/"},"modified":"2026-06-12T10:29:52","modified_gmt":"2026-06-12T10:29:52","slug":"sn65hvd75dr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/sn65hvd75dr\/","title":{"rendered":"SN65HVD75DR"},"content":{"rendered":"

Productos<\/h2>\n

The SN65HVD75DR from Texas Instruments is an RS-485\/RS-422 transceiver with 1\/8 unit load, supporting up to 256 nodes on the bus. It operates from 3.3V supply with data rates up to 50 Mbps and features half-duplex communication in an SOIC-8 package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Protocol<\/td>\nRS-485 \/ RS-422<\/td>\n<\/tr>\n
Velocidad de datos<\/td>\nUp to 50 Mbps<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n3.3V<\/td>\n<\/tr>\n
Unit Load<\/td>\n1\/8 (256 nodes per bus)<\/td>\n<\/tr>\n
Bus Pin ESD Protection<\/td>\n+\/-16 kV HBM<\/td>\n<\/tr>\n
Common Mode Range<\/td>\n-7V to +12V<\/td>\n<\/tr>\n
Receiver Sensitivity<\/td>\n+\/-200 mV<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40 to 85 C<\/td>\n<\/tr>\n
Paquete<\/td>\nSOIC-8<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 1\/8 unit load allows 256 nodes on a single bus<\/li>\n
  • Up to 50 Mbps data rate for high-speed communication<\/li>\n
  • +\/-16kV ESD protection on bus pins<\/li>\n
  • Hot-plug capable with glitch-free power-up\/down<\/li>\n
  • Fail-safe receiver (output high when bus open)<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Industrial automation (Modbus, Profibus)<\/li>\n
    • Building automation HVAC networks<\/li>\n
    • Motion control and motor drives<\/li>\n
    • Power grid monitoring and SCADA<\/li>\n
    • Security and access control systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SN65HVD75DR from Texas Instruments is an RS-485\/RS-422 transceiver with 1\/8 unit load, supporting up to 256 nodes on the bus. It operates from 3.3V supply with data rates up to 50 Mbps and features half-duplex communication in an SOIC-8 package. Key Specifications Protocol RS-485 \/ RS-422 Data Rate Up to 50 Mbps […]<\/p>\n","protected":false},"author":2,"featured_media":6386,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[138],"class_list":["post-6269","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"3.3V RS-485\/422 transceiver, 50Mbps, 1\/8 unit load (256 nodes), SOIC-8","date_code":"","package_case":"SOIC-8 (4.9 x 3.9 x 1.5mm)","in_stock":11101,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/sn65hvd75.pdf","price":"$1.05 @ 1ku","product_introduction":"The SN65HVD75DR from Texas Instruments is a 3.3V powered RS-485\/RS-422 transceiver designed for half-duplex communication on multipoint buses. With a 1\/8 unit load input impedance, it allows up to 256 nodes on a single bus, four times more than standard 1\/4 unit load transceivers. The device supports data rates up to 50 Mbps, making it suitable for both legacy 9600-baud Modbus networks and high-speed industrial protocols. Bus pins feature +\/-16kV ESD protection, and the fail-safe receiver ensures logic-high output when the bus is open or shorted.","working_principle":"The SN65HVD75DR operates as a half-duplex RS-485 transceiver with separate driver and receiver sections. **Driver Section**: When the DE (Driver Enable) pin is high, the differential driver amplifies the TTL-level TXD input into a differential signal on the A and B bus lines. The driver output swing is typically 2.4V differential. When DE is low, the driver outputs are high-impedance, releasing the bus for other nodes. **Receiver Section**: The differential receiver continuously monitors the A-B voltage. When the differential exceeds +200mV, the RXD output is high; when below -200mV, RXD is low. The \/RE (Receiver Enable) pin controls whether the receiver output is active or high-impedance. **Fail-Safe**: When the bus is idle (open, shorted, or terminated but not driven), the receiver output defaults to a logic high. This is achieved by an internal bias that ensures the A-B differential exceeds +200mV when the bus is undriven, preventing false start bits. **1\/8 Unit Load**: The high input impedance of the receiver (96kOhm typical vs 12kOhm for 1 unit load) reduces bus loading, allowing 256 transceivers on a single bus without exceeding the 32 unit load standard limit. **Hot-Plug**: Internal circuitry ensures that during power-up and power-down transients, the driver and receiver outputs remain in a known high-impedance state, preventing bus disruption when a node is inserted or removed.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>R<\/td>Receiver output (RXD)<\/td><\/tr>
      2<\/td>\/RE<\/td>Receiver enable (active low)<\/td><\/tr>
      3<\/td>DE<\/td>Driver enable (active high)<\/td><\/tr>
      4<\/td>D<\/td>Driver input (TXD)<\/td><\/tr>
      5<\/td>GND<\/td>Ground<\/td><\/tr>
      6<\/td>A<\/td>Bus non-inverting I\/O<\/td><\/tr>
      7<\/td>B<\/td>Bus inverting I\/O<\/td><\/tr>
      8<\/td>VCC<\/td>3.3V power supply<\/td><\/tr><\/table>","application_scenarios":"
      • Modbus RTU: Industrial PLC communication networks with up to 256 slave nodes on a single bus<\/li>
      • Motor Control: Multi-axis servo drive communication over RS-485 daisy chain<\/li>
      • Building Automation: BACnet MS\/TP and HVAC sensor networks<\/li>
      • Power Grid: SCADA communication links for substation monitoring and control<\/li>
      • Security Systems: Access control network wiring with multi-drop RS-485 topology<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        SN65HVD72DR<\/td>TI<\/td>Same family, 1 Mbps, lower cost<\/td><\/tr>
        SP3485EN-L<\/td>Sipex\/MaxLinear<\/td>3.3V, 10Mbps, SOIC-8<\/td><\/tr>
        MAX3485EESA+T<\/td>Maxim<\/td>3.3V, 10Mbps, ESD, SOIC-8<\/td><\/tr>
        THVD1500DR<\/td>TI<\/td>5V, 50Mbps, 1\/8 unit load, SOIC-8<\/td><\/tr>
        ISL3152EIBZ<\/td>Renesas<\/td>3.3V, 256 nodes, SOIC-8<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=6269"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6269\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media\/6386"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=6269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=6269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=6269"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=6269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}