{"id":10735,"date":"2026-07-20T11:13:27","date_gmt":"2026-07-20T11:13:27","guid":{"rendered":"https:\/\/ic-vendor.com\/sn65hvd82dr-2\/"},"modified":"2026-07-20T11:13:27","modified_gmt":"2026-07-20T11:13:27","slug":"sn65hvd82dr-2","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/sn65hvd82dr-2\/","title":{"rendered":"SN65HVD82DR"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The SN65HVD82DR from Texas Instruments is a 3.3-V RS-485 transceiver with IEC ESD protection, designed for robust industrial communication. Packaged in an 8-pin SOIC, it provides half-duplex communication with a 1\/8 unit load allowing up to 256 nodes on a single bus, and features extended common-mode range for noisy environments.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n
\u7535\u6e90\u7535\u538b<\/td>\n3.3 V<\/td>\n<\/tr>\n
\u6570\u636e\u901f\u7387<\/td>\nUp to 1 Mbps<\/td>\n<\/tr>\n
Bus Nodes (max)<\/td>\n256 (1\/8 unit load)<\/td>\n<\/tr>\n
Common-Mode Range<\/td>\n-20 V to 25 V<\/td>\n<\/tr>\n
ESD Protection<\/td>\nIEC 61000-4-2, +-16 kV<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to 85 degC<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-8\uff084.9 x 3.9 \u6beb\u7c73\uff09<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • IEC 61000-4-2 ESD protection: +-16 kV on bus pins<\/li>\n
  • 1\/8 unit load allows up to 256 nodes on bus<\/li>\n
  • Extended common-mode range: -20 V to 25 V<\/li>\n
  • Half-duplex operation with enable pins<\/li>\n
  • Open-circuit fail-safe receiver<\/li>\n
  • Thermal shutdown protection<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial automation fieldbus<\/li>\n
    • Building automation and HVAC<\/li>\n
    • Motor drive communication<\/li>\n
    • Grid infrastructure monitoring<\/li>\n
    • Process control networks<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SN65HVD82DR from Texas Instruments is a 3.3-V RS-485 transceiver with IEC ESD protection, designed for robust industrial communication. Packaged in an 8-pin SOIC, it provides half-duplex communication with a 1\/8 unit load allowing up to 256 nodes on a single bus, and features extended common-mode range for noisy environments. Key Specifications Supply […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[1303],"chip_brand":[138],"class_list":["post-10735","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","tag-sn65hvd82dr","chip_brand-ti"],"acf":{"brief_explanation":"3.3V RS-485 transceiver, 1Mbps, 256 nodes, +-16kV ESD, SOIC-8","date_code":"","package_case":"SOIC-8 (4.9 x 3.9 x 1.75 mm)","in_stock":5681,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/sn65hvd82.pdf","price":"$1.20 @ 1ku","product_introduction":"The SN65HVD82DR from Texas Instruments is a 3.3-V RS-485 transceiver designed for robust industrial communication networks. It meets IEC 61000-4-2 ESD standards with +-16 kV protection on bus pins, providing exceptional immunity in electrically harsh environments. The 1\/8 unit load specification allows up to 256 nodes on a single bus without signal degradation. An extended common-mode range of -20 V to 25 V ensures reliable communication in the presence of ground potential differences. Open-circuit fail-safe receiver logic ensures the receiver output is high when the bus is idle.","working_principle":"The SN65HVD82DR operates as a half-duplex RS-485 transceiver with separate driver enable (DE) and receiver enable (RE) pins. The driver converts single-ended TTL\/CMOS logic levels to differential RS-485 signals on the A and B bus pins. The receiver converts differential RS-485 signals back to single-ended logic. When both driver and receiver are disabled, the device enters a low-power standby mode. The fail-safe receiver design ensures the output remains high when the bus lines are open, shorted, or idle. The extended common-mode range is achieved through robust input stage design that can tolerate large ground shifts between nodes.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>R<\/td>Output<\/td>Receiver output<\/td><\/tr>
      2<\/td>RE<\/td>Input<\/td>Receiver enable (active low)<\/td><\/tr>
      3<\/td>DE<\/td>Input<\/td>Driver enable (active high)<\/td><\/tr>
      4<\/td>D<\/td>Input<\/td>Driver input<\/td><\/tr>
      5<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      6<\/td>A<\/td>I\/O<\/td>Non-inverting bus pin<\/td><\/tr>
      7<\/td>B<\/td>I\/O<\/td>Inverting bus pin<\/td><\/tr>
      8<\/td>VCC<\/td>Power<\/td>3.3 V supply<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial automation and fieldbus networks (Modbus, Profibus)<\/li>
      • Building automation and HVAC control systems<\/li>
      • Motor drive and inverter communication links<\/li>
      • Smart grid and utility monitoring infrastructure<\/li>
      • Process control and SCADA communication networks<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>SN65HVD75DR<\/td>SOIC-8<\/td>5V RS-485, 20 Mbps<\/td><\/tr>
        TI<\/td>THVD1450DR<\/td>SOIC-8<\/td>3.3\/5V, 500 kbps, newer<\/td><\/tr>
        Analog Devices<\/td>ADM3083EARZ<\/td>SOIC-8<\/td>3.3V RS-485 with ESD<\/td><\/tr>
        Maxim<\/td>MAX3485ECSA+<\/td>SOIC-8<\/td>3.3V, 10 Mbps equivalent<\/td><\/tr>
        NXP<\/td>SP3485CN-L\/TR<\/td>SOIC-8<\/td>3.3V RS-485 transceiver<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10735","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=10735"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10735\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10735"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}