{"id":7857,"date":"2026-06-28T02:53:13","date_gmt":"2026-06-28T02:53:13","guid":{"rendered":"https:\/\/materialparts.com\/mcp2551-i-sn-2\/"},"modified":"2026-06-28T10:20:08","modified_gmt":"2026-06-28T10:20:08","slug":"mcp2551-i-sn-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/mcp2551-i-sn-2\/","title":{"rendered":"MCP2551-I\/SN"},"content":{"rendered":"

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

The MCP2551-I\/SN is a high-speed CAN transceiver from Microchip Technology implementing the ISO-11898 standard with 1Mbps data rate, \u00b112V common-mode range, and slope control in an 8-pin SOIC 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\n\n
Standard<\/td>\nISO-11898 (CAN 2.0A\/B)<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/td>\n1 Mbps maximum<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n4.5V to 5.5V<\/td>\n<\/tr>\n
Common-Mode Range<\/td>\n-12V to +12V<\/td>\n<\/tr>\n
Bus Pins Voltage Range<\/td>\n-24V to +18V (survive faults)<\/td>\n<\/tr>\n
Slope Control<\/td>\nYes (via RS pin)<\/td>\n<\/tr>\n
\u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0627\u062d\u062a\u064a\u0627\u0637\u064a<\/td>\n20\u00b5A typical<\/td>\n<\/tr>\n
Short-Circuit Protection<\/td>\nYes (to \u00b118V on CANH\/CANL)<\/td>\n<\/tr>\n
Number of Nodes<\/td>\nUp to 112 on one bus<\/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 +85\u00b0C (I-grade)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-8 (4.9 x 3.9mm)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • ISO-11898 standard compliant CAN transceiver<\/li>\n
  • 1Mbps maximum data rate<\/li>\n
  • Automatic slope control via RS pin for reduced EMI<\/li>\n
  • \u00b112V common-mode input range<\/li>\n
  • Bus pins withstand -24V to +18V fault voltages<\/li>\n
  • Short-circuit protection on CANH and CANL<\/li>\n
  • Thermal shutdown protection<\/li>\n
  • Up to 112 nodes on single CAN bus<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Automotive CAN bus networks<\/li>\n
    • Industrial CAN-based communication<\/li>\n
    • Building automation systems<\/li>\n
    • Medical equipment interconnects<\/li>\n
    • Marine and avionics CAN networks<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MCP2551-I\/SN is a high-speed CAN transceiver from Microchip Technology implementing the ISO-11898 standard with 1Mbps data rate, \u00b112V common-mode range, and slope control in an 8-pin SOIC package. Key Specifications Standard ISO-11898 (CAN 2.0A\/B) Data Rate 1 Mbps maximum Supply Voltage 4.5V to 5.5V Common-Mode Range -12V to +12V Bus Pins Voltage […]<\/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":[134],"class_list":["post-7857","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-microchip"],"acf":{"brief_explanation":"CAN transceiver, ISO-11898, 1Mbps, slope control, \u00b112V CMV, SOIC-8","date_code":"","package_case":"SOIC-8 (4.9 x 3.9 x 1.5mm, 1.27mm pitch)","in_stock":9800,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/21667E.pdf","price":"$1.15 @ 1ku","product_introduction":"The MCP2551-I\/SN is a high-speed CAN (Controller Area Network) transceiver from Microchip Technology that provides the physical interface between a CAN protocol controller and the physical bus. It complies with the ISO-11898 standard, supporting data rates up to 1Mbps. The device features automatic slope control via the RS pin to reduce EMI at lower data rates, \u00b112V common-mode range for noise immunity in automotive environments, and bus fault protection from -24V to +18V. Short-circuit protection and thermal shutdown ensure robustness in harsh environments. The I-grade operates from -40\u00b0C to +85\u00b0C, suitable for automotive and industrial applications. Up to 112 nodes can connect to a single CAN bus.","working_principle":"The MCP2551-I\/SN translates the TTL-level CAN protocol signals (TXD, RXD) to and from the differential CAN bus signals (CANH, CANL). When the CAN controller drives TXD low (dominant state), the transceiver drives CANH high (\u22483.5V) and CANL low (\u22481.5V), creating a 2V differential voltage on the bus. When TXD is high (recessive state), both CANH and CANL are biased to approximately 2.5V through internal resistors, creating a near-zero differential voltage. The receiver continuously monitors the bus differential voltage and drives RXD low when the differential exceeds the dominant threshold (approximately 0.9V). The RS (slope control) pin adjusts the output slew rate: connecting RS to ground enables high-speed mode (1Mbps), connecting via a resistor sets intermediate slew rates for EMI reduction at lower data rates, and connecting RS to VDD places the device in standby mode (20\u00b5A current). The \u00b112V common-mode range allows reliable reception even when ground shifts between nodes in automotive systems. The bus fault protection circuitry uses series resistance and clamping to survive miswiring and short-circuit conditions.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n
      1<\/td>TXD<\/td>Input<\/td>Transmit data input (from CAN controller)<\/td><\/tr>\n
      2<\/td>VSS<\/td>Power<\/td>Ground<\/td><\/tr>\n
      3<\/td>VDD<\/td>Power<\/td>Supply voltage (4.5V-5.5V)<\/td><\/tr>\n
      4<\/td>RXD<\/td>Output<\/td>Receive data output (to CAN controller)<\/td><\/tr>\n
      5<\/td>VREF<\/td>Output<\/td>Reference voltage output (VDD\/2 \u2248 2.5V)<\/td><\/tr>\n
      6<\/td>CANL<\/td>I\/O<\/td>CAN bus low line<\/td><\/tr>\n
      7<\/td>CANH<\/td>I\/O<\/td>CAN bus high line<\/td><\/tr>\n
      8<\/td>RS<\/td>Input<\/td>Slope control \/ standby mode select<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Automotive CAN:<\/strong> \u00b112V CMV and fault protection handle ground shifts and transients in vehicle CAN networks<\/li>\n
      • Industrial CAN:<\/strong> 1Mbps data rate supports CANopen and DeviceNet protocols for factory automation<\/li>\n
      • EMI-Sensitive Designs:<\/strong> Slope control via RS resistor reduces bus slew rate to minimize radiated emissions<\/li>\n
      • Multi-Node Networks:<\/strong> 112-node capability and standard compliance ensure interoperability with any CAN controller<\/li>\n
      • Low-Power Modes:<\/strong> 20\u00b5A standby current via RS pin enables battery-backed CAN nodes in always-on systems<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th>Package<\/th>Specs<\/th><\/tr>\n
        MCP2551T-I\/SN<\/td>Microchip<\/td>Tape and reel version<\/td>-<\/td>-<\/td><\/tr>\n
        MCP2561-E\/SN<\/td>Microchip<\/td>CAN FD (5Mbps), pin compatible, SOIC-8<\/td>-<\/td>-<\/td><\/tr>\n
        SN65HVD230DR<\/td>TI<\/td>3.3V CAN transceiver, SOIC-8<\/td>-<\/td>-<\/td><\/tr>\n
        TJA1050T<\/td>NXP<\/td>1Mbps CAN, SOIC-8, pin compatible<\/td>-<\/td>-<\/td><\/tr>\n
        TJA1042T<\/td>NXP<\/td>CAN FD, 5Mbps, VIO pin for level shifting<\/td>-<\/td>-<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7857","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=7857"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7857\/revisions"}],"predecessor-version":[{"id":8282,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7857\/revisions\/8282"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7857"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7857"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7857"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}