{"id":7006,"date":"2026-06-22T12:43:44","date_gmt":"2026-06-22T12:43:44","guid":{"rendered":"https:\/\/materialparts.com\/sn65hvd12dr-2\/"},"modified":"2026-06-22T12:43:44","modified_gmt":"2026-06-22T12:43:44","slug":"sn65hvd12dr-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/sn65hvd12dr-2\/","title":{"rendered":"SN65HVD12DR"},"content":{"rendered":"

Productos<\/h2>\n

The SN65HVD12DR from Texas Instruments is a 3.3V RS-485\/RS-422 transceiver in an SOIC-8 package. It supports data rates up to 1Mbps, features \u00b116kV HBM ESD protection, and provides 1\/4 unit load allowing up to 128 nodes on the bus. The device includes thermal shutdown protection and operates from 3.0V to 5.5V supply.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Velocidad de datos<\/td>\nUp to 1Mbps<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n3.0V ~ 5.5V<\/td>\n<\/tr>\n
ESD Protection<\/td>\n\u00b116kV HBM on bus pins<\/td>\n<\/tr>\n
Unit Load<\/td>\n1\/4 (up to 128 nodes)<\/td>\n<\/tr>\n
Differential Output Voltage<\/td>\n\u00b12.0V (Minimum)<\/td>\n<\/tr>\n
Receiver Input Impedance<\/td>\n1\/4 Unit Load<\/td>\n<\/tr>\n
Short-Circuit Protection<\/td>\nYes (to +12V\/-7V)<\/td>\n<\/tr>\n
Thermal Shutdown<\/td>\nYes (150\u00b0C)<\/td>\n<\/tr>\n
Paquete<\/td>\nSOIC-8 (4.90 x 3.90mm)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C ~ +85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 3.3V or 5V single supply operation<\/li>\n
  • \u00b116kV HBM ESD protection on bus pins<\/li>\n
  • 1\/4 unit load allows up to 128 nodes<\/li>\n
  • Short-circuit protection to +12V\/-7V<\/li>\n
  • Thermal shutdown protection at 150\u00b0C<\/li>\n
  • Meets ANSI TIA\/EIA-485-A standard at 5V<\/li>\n
  • Open-circuit failsafe receiver<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Fieldbus networks<\/li>\n
    • Industrial automation<\/li>\n
    • Motor control communication<\/li>\n
    • Building environmental control<\/li>\n
    • Point-of-sale terminals<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SN65HVD12DR from Texas Instruments is a 3.3V RS-485\/RS-422 transceiver in an SOIC-8 package. It supports data rates up to 1Mbps, features \u00b116kV HBM ESD protection, and provides 1\/4 unit load allowing up to 128 nodes on the bus. The device includes thermal shutdown protection and operates from 3.0V to 5.5V supply. Key […]<\/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-7006","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"3.3V RS-485 transceiver, 1Mbps, \u00b116kV ESD, 128 nodes, thermal shutdown in SOIC-8","date_code":"","package_case":"SOIC-8 (4.90 x 3.90 x 1.75 mm) D-8","in_stock":11200,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/sn65hvd12.pdf","price":"$1.25 @ 1ku","product_introduction":"The SN65HVD12DR is a 3.3V RS-485 transceiver designed for half-duplex communication over twisted-pair bus cables. Combining a differential driver and a differential receiver, the device operates from a single 3.0V to 5.5V supply. The 1\/4 unit load input impedance allows up to 128 transceivers to share a single bus. Integrated protection features include \u00b116kV HBM ESD on bus pins, short-circuit protection to +12V\/-7V, and thermal shutdown at 150\u00b0C junction temperature.","working_principle":"The SN65HVD12 converts between single-ended logic levels (TXD\/RXD) and differential RS-485 bus signals (A\/B). The driver uses a push-pull output stage to generate the differential signal, which propagates along the twisted-pair cable to all receivers on the bus. The receiver detects the differential voltage between A and B, outputting a logic high or low on RXD. The DE and \/RE pins control driver and receiver enable. When both are disabled, the device enters a low-power idle mode. The failsafe receiver biases the output high when the bus is open or all drivers are off.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>R<\/td>Receiver data output<\/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 data input<\/td><\/tr>
      5<\/td>GND<\/td>Ground reference<\/td><\/tr>
      6<\/td>A<\/td>Non-inverting bus I\/O<\/td><\/tr>
      7<\/td>B<\/td>Inverting bus I\/O<\/td><\/tr>
      8<\/td>VCC<\/td>Supply voltage (3.0-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Modbus RTU Network<\/b>: 1Mbps data rate supports fast Modbus polling of multiple slave devices over RS-485<\/li>
      • 3.3V MCU Direct Interface<\/b>: Operates directly from 3.3V supply without level shifters when used with ARM Cortex-M MCUs<\/li>
      • Motor Drive Communication<\/b>: Thermal shutdown protects the transceiver in high-temperature motor control enclosures<\/li>
      • Retail POS Network<\/b>: 128-node capability supports multi-terminal installations in retail environments<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        SN65HVD11DR<\/td>TI<\/td>Same but 250kbps data rate<\/td><\/tr>
        SN65HVD10DR<\/td>TI<\/td>Same but 10Mbps data rate<\/td><\/tr>
        THVD1450DR<\/td>TI<\/td>500kbps, 3.3-5V, lower cost<\/td><\/tr>
        MAX3485ECSA+<\/td>ADI<\/td>3.3V, 10Mbps, SOIC-8<\/td><\/tr>
        SP3485EN-L<\/td>MaxLinear<\/td>3.3V, 10Mbps, low cost<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7006","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=7006"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7006\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=7006"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=7006"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=7006"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=7006"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}