{"id":5492,"date":"2026-06-10T04:01:45","date_gmt":"2026-06-10T04:01:45","guid":{"rendered":"https:\/\/materialparts.com\/max485csat\/"},"modified":"2026-06-10T04:01:45","modified_gmt":"2026-06-10T04:01:45","slug":"max485csat","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/max485csat\/","title":{"rendered":"MAX485CSA+T"},"content":{"rendered":"

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

The MAX485CSA+T from Analog Devices (formerly Maxim) is a +5V RS-485\/RS-422 transceiver with 2.5Mbps data rate in an SOIC-8 package. With 1\/4 unit load (allowing 128 devices on bus), +\/-7kV ESD protection on bus pins, and slew-rate limited output for reduced EMI, it is the industry-standard RS-485 interface IC.<\/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\n\n
Standard<\/td>\nRS-485 \/ RS-422<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/td>\n2.5Mbps<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n5V (+\/-5%)<\/td>\n<\/tr>\n
Iq (no load)<\/td>\n300uA typical<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0625\u064a\u0642\u0627\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n1nA typical<\/td>\n<\/tr>\n
Unit Load<\/td>\n1\/4 (128 devices on bus)<\/td>\n<\/tr>\n
ESD Protection<\/td>\n+\/-7kV HBM on bus pins<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n+\/-60mA drive<\/td>\n<\/tr>\n
Receiver Input Impedance<\/td>\n48kOhm (1\/4 unit load)<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-8<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 2.5Mbps data rate for high-speed communication<\/li>\n
  • 1\/4 unit load for 128 devices on one bus<\/li>\n
  • +\/-7kV ESD protection on bus pins<\/li>\n
  • 300uA supply current, 1nA shutdown<\/li>\n
  • Slew-rate limited for reduced EMI<\/li>\n
  • 5V single supply with +5% tolerance<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Industrial RS-485\/Modbus networks<\/li>\n
    • DMX512 lighting control<\/li>\n
    • Building automation HVAC<\/li>\n
    • Motor drive communication links<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MAX485CSA+T from Analog Devices (formerly Maxim) is a +5V RS-485\/RS-422 transceiver with 2.5Mbps data rate in an SOIC-8 package. With 1\/4 unit load (allowing 128 devices on bus), +\/-7kV ESD protection on bus pins, and slew-rate limited output for reduced EMI, it is the industry-standard RS-485 interface IC. Key Specifications Standard RS-485 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[165],"class_list":["post-5492","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-adi"],"acf":{"brief_explanation":"RS-485\/422 transceiver, 2.5Mbps, SOIC-8","date_code":"","package_case":"SOIC-8 (3.9 x 4.9 mm)","in_stock":13661,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/MAX1487-MAX491.pdf","price":"$0.70 @ 1ku","product_introduction":"The MAX485CSA+T from Analog Devices (formerly Maxim) is a +5V RS-485\/RS-422 transceiver with 2.5Mbps data rate in an SOIC-8 package. With 1\/4 unit load (allowing 128 devices on bus), +\/-7kV ESD protection on bus pins, and slew-rate limited output for reduced EMI, it is the industry-standard RS-485 interface IC.","working_principle":"The MAX485CSA+T operates as described in the product overview. Key subsystems include the input stage, processing\/gain stage, output stage, and protection circuitry as detailed in the datasheet.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/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>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>Supply (4.75-5.25V)<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial RS-485\/Modbus networks<\/li>
      • DMX512 lighting control<\/li>
      • Building automation HVAC<\/li>
      • Motor drive communication links<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Package<\/th>Notes<\/th><\/tr>
        ST3485ECDR<\/td>ST<\/td>SOIC-8<\/td>Pin-compatible, lower cost<\/td><\/tr>
        SN65HVD485DR<\/td>TI<\/td>SOIC-8<\/td>Higher speed 50Mbps<\/td><\/tr>
        SP3485CN-L\/TR<\/td>MaxLinear<\/td>SOIC-8<\/td>3.3V version<\/td><\/tr>
        THVD1450DR<\/td>TI<\/td>SOIC-8<\/td>3.3-5V, 500kbps<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5492","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=5492"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5492\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5492"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5492"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}