{"id":6770,"date":"2026-06-21T10:28:24","date_gmt":"2026-06-21T10:28:24","guid":{"rendered":"https:\/\/materialparts.com\/thvd2450dr-2\/"},"modified":"2026-06-21T10:28:24","modified_gmt":"2026-06-21T10:28:24","slug":"thvd2450dr-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/thvd2450dr-2\/","title":{"rendered":"THVD2450DR"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The THVD2450DR from Texas Instruments is a 3.3 V to 5 V RS-485\/RS-422 half-duplex transceiver supporting up to 50 Mbps data rates with \u00b118 kV IEC ESD protection in an SOIC-8 package.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0646\u0648\u0639<\/td>\nRS-485\/RS-422 Half-Duplex Transceiver<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/td>\nUp to 50 Mbps<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n3.3 V to 5 V<\/td>\n<\/tr>\n
ESD Protection<\/td>\n\u00b118 kV IEC 61000-4-2 on bus pins<\/td>\n<\/tr>\n
Common-Mode Range<\/td>\n-15 V to +15 V<\/td>\n<\/tr>\n
Receiver Input Impedance<\/td>\n1\/8 Unit Load (96 kOhm min)<\/td>\n<\/tr>\n
Driver Output Voltage<\/td>\n\u00b12.2 V min (54 Ohm load)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-8 (5.0 x 4.0 mm)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40\u00b0C to 125\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 50 Mbps high-speed data rate<\/li>\n
  • \u00b118 kV IEC ESD protection on bus pins<\/li>\n
  • Wide 3.3 V to 5 V supply range<\/li>\n
  • -15 V to +15 V extended common-mode range<\/li>\n
  • 1\/8 unit load supports up to 256 nodes<\/li>\n
  • Hot-plug capable with powered-off high impedance<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Industrial automation (Profibus, Modbus)<\/li>\n
    • Motion control and motor drives<\/li>\n
    • Building automation (BACnet)<\/li>\n
    • Backplane and intra-system communication<\/li>\n
    • Automotive and robotics networking<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The THVD2450DR from Texas Instruments is a 3.3 V to 5 V RS-485\/RS-422 half-duplex transceiver supporting up to 50 Mbps data rates with \u00b118 kV IEC ESD protection in an SOIC-8 package. Key Specifications Type RS-485\/RS-422 Half-Duplex Transceiver Data Rate Up to 50 Mbps Supply Voltage 3.3 V to 5 V ESD Protection […]<\/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":[],"chip_brand":[138],"class_list":["post-6770","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"RS-485\/422 Half-Duplex Transceiver, 50Mbps, \u00b118kV ESD, 3.3-5V, SOIC-8","date_code":"","package_case":"SOIC-8 (5.0 x 4.0 x 1.5 mm)","in_stock":9876,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/thvd2450.pdf","price":"$1.35 @ 1ku","product_introduction":"The THVD2450DR from Texas Instruments is a high-speed RS-485\/RS-422 half-duplex transceiver supporting data rates up to 50 Mbps with \u00b118 kV IEC 61000-4-2 ESD protection on bus pins. The wide 3.3 V to 5 V supply range provides flexibility in system design. The extended common-mode range of -15 V to +15 V ensures robust communication in noisy industrial environments. The 1\/8 unit load receiver input impedance supports up to 256 nodes on a single bus. Hot-plug capability ensures that a device can be connected or disconnected from the bus without disrupting communication.","working_principle":"The THVD2450DR integrates a differential line driver and a differential line receiver with separate enable controls. The driver converts single-ended TTL\/CMOS logic on the DI pin to a differential output on the A and B bus pins. The DE (Driver Enable) pin controls driver output activation. The receiver converts the differential signal on the A and B pins to a single-ended output on the RO pin, enabled by the RE (Receiver Enable, active low) pin. In half-duplex operation, DE and RE are typically tied together. The \u00b118 kV IEC ESD protection on bus pins uses transient voltage suppression structures that clamp ESD events to safe voltage levels. The extended -15 V to +15 V common-mode range is achieved through a floating receiver design that operates independently of the local ground reference. Hot-plug logic ensures the driver and receiver outputs remain in high-impedance during power-up and power-down transients.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>RO<\/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>DI<\/td>Input<\/td>Driver data input<\/td><\/tr>
      5<\/td>GND<\/td>Ground<\/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>Supply voltage (3.3-5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Profibus DP high-speed industrial fieldbus at 12 Mbps<\/li>
      • Modbus RTU multi-drop serial communication<\/li>
      • Motion controller and servo drive RS-485 links<\/li>
      • Backplane communication between rack modules<\/li>
      • Automotive and robotics real-time control networks<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Texas Instruments<\/td>SN65HVD08DR<\/td>SOIC-8<\/td>20Mbps, similar family<\/td><\/tr>
        Analog Devices<\/td>MAX3490ESA+<\/td>SOIC-8<\/td>Full-duplex, 10Mbps, 3.3V<\/td><\/tr>
        STMicroelectronics<\/td>ST3485EBDR<\/td>SOIC-8<\/td>3.3V, 18Mbps half-duplex<\/td><\/tr>
        Renesas<\/td>ISL3179EIBZ<\/td>SOIC-8<\/td>3.3V, 30Mbps<\/td><\/tr>
        onsemi<\/td>NCS5762DR2G<\/td>SOIC-8<\/td>5V, 50Mbps, AEC-Q100<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6770","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=6770"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6770\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6770"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6770"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6770"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6770"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}