{"id":3528,"date":"2026-06-06T10:01:19","date_gmt":"2026-06-06T10:01:19","guid":{"rendered":"https:\/\/materialparts.com\/mcp2551-i-sn\/"},"modified":"2026-06-06T10:01:19","modified_gmt":"2026-06-06T10:01:19","slug":"mcp2551-i-sn","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/mcp2551-i-sn\/","title":{"rendered":"MCP2551-I\/SN"},"content":{"rendered":"

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

The MCP2551-I\/SN from Microchip Technology is a high-speed CAN transceiver serving as the interface between a CAN protocol controller and the physical bus. Fully compliant with ISO-11898, it supports data rates up to 1 Mbps and can connect up to 112 nodes on a single bus. Housed in an 8-pin SOIC package, it features slope control, permanent dominant detection, thermal shutdown, and short-circuit protection.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n
\u6570\u636e\u901f\u7387<\/td>\nUp to 1 Mbps<\/td>\n<\/tr>\n
Standard<\/td>\nISO-11898<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n4.5V – 5.5V<\/td>\n<\/tr>\n
Max Nodes<\/td>\n112<\/td>\n<\/tr>\n
Slope Control<\/td>\nExternal (RS pin)<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to 125 C (Industrial)<\/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
  • 1 Mbps CAN communication with ISO-11898 compliance<\/li>\n
  • Externally controlled slope for reduced RFI emissions<\/li>\n
  • Permanent dominant detection on TXD input<\/li>\n
  • Power-on reset and voltage brown-out protection<\/li>\n
  • Unpowered node does not disturb the CAN bus<\/li>\n
  • Short-circuit protection and automatic thermal shutdown<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Automotive CAN bus networks (ECUs, body control modules)<\/li>\n
    • Industrial automation and process control<\/li>\n
    • Building automation systems<\/li>\n
    • Medical equipment communication<\/li>\n
    • Marine and agricultural vehicle networks<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MCP2551-I\/SN from Microchip Technology is a high-speed CAN transceiver serving as the interface between a CAN protocol controller and the physical bus. Fully compliant with ISO-11898, it supports data rates up to 1 Mbps and can connect up to 112 nodes on a single bus. Housed in an 8-pin SOIC package, it […]<\/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":[134],"class_list":["post-3528","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-microchip"],"acf":{"brief_explanation":"High-speed CAN transceiver, 1Mbps, ISO-11898, SOIC-8, 4.5-5.5V, -40 to 125C","date_code":"","package_case":"SOIC-8 (4.9 x 3.9 x 1.25 mm)","in_stock":6506,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/21667G.pdf","price":"$0.78 @ 1ku","product_introduction":"The MCP2551-I\/SN from Microchip Technology is a high-speed CAN transceiver providing the physical layer interface between a CAN protocol controller and the differential CAN bus. Fully compliant with ISO-11898 including 24V requirements, it supports data rates up to 1 Mbps and can connect up to 112 nodes on a single bus. The device features externally controlled slope for RFI reduction, permanent dominant detection, brown-out protection, and automatic thermal shutdown. An unpowered node will not disturb the bus, ensuring system reliability.","working_principle":"The MCP2551-I\/SN converts TTL\/CMOS logic levels from a CAN controller to differential signals for the CAN bus. The transmitter drives CANH and CANL with complementary signals: dominant state creates a ~2V differential, while recessive state leaves both lines at ~2.5V. The receiver continuously monitors the bus differential voltage and outputs the detected state to RXD. The RS (slope control) pin allows external adjustment of output slew rate to minimize EMI. Protection circuits include thermal shutdown and current limiting during bus fault conditions.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>TXD<\/td>Input<\/td>Transmit data from CAN controller<\/td><\/tr>
      2<\/td>VSS<\/td>Ground<\/td>Ground<\/td><\/tr>
      3<\/td>VDD<\/td>Power<\/td>Supply voltage (4.5-5.5V)<\/td><\/tr>
      4<\/td>RXD<\/td>Output<\/td>Receive data to CAN controller<\/td><\/tr>
      5<\/td>VREF<\/td>Output<\/td>Reference voltage (~VDD\/2)<\/td><\/tr>
      6<\/td>CANL<\/td>I\/O<\/td>CAN bus low-side line<\/td><\/tr>
      7<\/td>CANH<\/td>I\/O<\/td>CAN bus high-side line<\/td><\/tr>
      8<\/td>RS<\/td>Input<\/td>Slope control \/ mode select<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive CAN networks: ECU-to-ECU communication<\/li>
      • Industrial automation: CAN-based fieldbus for PLCs and sensors<\/li>
      • Building automation: HVAC and lighting control<\/li>
      • Medical equipment: Inter-device communication requiring fault tolerance<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        NXP<\/td>TJA1050T<\/td>SOIC-8<\/td>Pin-compatible high-speed CAN<\/td><\/tr>
        TI<\/td>SN65HVD230DR<\/td>SOIC-8<\/td>3.3V CAN transceiver<\/td><\/tr>
        Microchip<\/td>MCP2561-E\/SN<\/td>SOIC-8<\/td>CAN FD capable, 5Mbps<\/td><\/tr>
        NXP<\/td>TJA1042T<\/td>SOIC-8<\/td>CAN FD, pin-compatible<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=3528"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3528\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=3528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=3528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=3528"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=3528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}