MCP2551T-E/SN - 1Mbps Fault-Tolerant CAN | Microchip
MPN: MCP2551T-E/SN ✗ Cuối đờiMCP2551T-E/SN Tóm tắt
A CAN transceiver, also called a CAN physical-layer interface, converts logic-level TXD and RXD signals into the dominant and recessive voltage states used on a differential CAN network. It bridges a host CAN controller and the physical bus while providing fault-tolerant behavior for automotive, industrial, and embedded systems. The MCP2551 family is positioned above simple logic transceivers because it addresses bus termination, common-mode operation, radiated emissions, and protection in connected vehicle or machine environments.
Key verified features include support for 1 Mb/s operation, differential transmit and receive, ISO-11898 physical-layer compatibility, suitability for 12 V and 24 V systems, and externally controlled slope for reduced RFI emissions. The supplied datasheet also describes ground-fault detection for a permanent dominant condition on the TXD input. These features help a system control edge rate, recognize abnormal bus states, and reduce electromagnetic interference while retaining a conventional controller interface.
The MCP2551 is a 1/1 CAN transceiver: one driver and one receiver are combined in one package. Its 4.5 V to 5.5 V supply range matches conventional 5 V CAN-controller ecosystems. At the physical bus, the differential CANH and CANL conductors carry complementary signals, while the transceiver interfaces to the controller through TXD and RXD. The exact logic levels, propagation delays, receiver thresholds, and absolute maximum ratings should be read from the manufacturer datasheet before final sign-off.
Typical uses include automotive diagnostic links, industrial automation equipment, elevator and building-control networks, robotics, embedded motor-control systems, and CAN-based sensor or actuator networks. The 1 Mb/s capability is appropriate for high-rate short CAN networks, while the external slope-control option allows the designer to tune emissions behavior to the PCB and cabling environment. The 8-SOIC package also makes the device convenient for surface-mount designs that need a separate physical-layer transceiver beside a host microcontroller.
Designers should pay attention to bus termination, transceiver supply decoupling, common-mode grounding, and the CAN controller's timing requirements. Place the termination network at the physical ends of the bus rather than beside every node. Review the datasheet's TXD, RXD, VDD, GND, CANH, and CANL connections and verify the selected logic family and package variant before manufacture. The MCP2551T-E/SN data should be treated as the authoritative source for values not explicitly stated in the verified search results.
This page consolidates the verified MCP2551T-E/SN specifications, source links, application guidance, and replacement considerations. Pricing is shown as reference data as of 2026-10-22 where supplied by the verified distributor result; current commercial availability should be confirmed directly with the seller.
Bộ thay thế dễ dàng lắp đặt cho MCP2551T-E/SN — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MCP2551T-E/SN (cùng hình factor và footprint) — khác nhau ở Package, Product Type, Supply Voltage Range, Bus Interface, CAN Data Rate.
MCP2551T-I/SN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MCP2561-E/SN
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCP2562-E/SN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →SN65HVD230DR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MCP2551T-E/SN Thông số kỹ thuật
| Product Type | High-speed CAN transceiver |
| CAN Bus Data Rate | Up to 1 Mb/s |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| CAN Protocol Compatibility | ISO-11898 |
| Supported System Voltage | 12 V and 24 V systems |
| Hộp | 8-SOIC |
| Package Dimensions | 3.90 mm width |
| Kiểu lắp đặt | Surface mount |
| Differential Transmit Capability | Yes |
| Differential Receive Capability | Yes |
| External Slope Control | Yes |
| RFI Reduction | Externally controlled slope for reduced RFI emissions |
| Ground-Fault Detection | Permanent dominant detection on TXD input |
| Fault Tolerance | Fault-tolerant CAN physical-layer device |
| Trạng thái RoHS | Compliant |
Hướng dẫn cấu hình chân MCP2551T-E/SN 3.90 mm width
Cấu hình chân cho MCP2551T-E/SN (3.90 mm width gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.
Không có dữ liệu chân cụ thể sẵn có cho MCP2551T-E/SN.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MCP2551T-E/SN phù hợp cho 6 Áp dụngs: Automotive Diagnostic Networks, Industrial Automation Control, Robotics and Motor-Control Networks, Building and Elevator Networks, Embedded Sensor and Actuator Networks, Instrumentation and Test Equipment.
Automotive Diagnostic Networks
The MCP2551T-E/SN fits an automotive CAN physical-layer node requiring differential transmit and receive at rates up to 1 Mb/s. Its 4.5 V to 5.5 V supply suits a 5 V CAN-controller environment, while the device is described as suitable for 12 V and 24 V systems. Place the transceiver between the vehicle MCU or CAN controller and the CANH/CANL wiring, and retain proper bus termination. The externally controlled slope can help reduce RFI in a compact electronic-control-unit layout, but automotive qualification requirements and transient tests must be checked separately.
Được đề xuất
Industrial Automation Control
The MCP2551T-E/SN is appropriate for industrial equipment that uses a high-speed differential CAN bus to distribute commands and sensor data. Its 1 Mb/s capability supports short, high-rate links, and the ISO-11898 compatibility stated in the verified material provides a conventional physical-layer basis for controller integration. Connect TXD and RXD to the control logic, use the transceiver on the bus side, and design the PCB return path carefully. External slope control gives the engineer a way to manage radiated emissions in cabinets containing switching power supplies and motors.
Được đề xuất
Robotics and Motor-Control Networks
MCP2551T-E/SN can provide the physical CAN link in a robot controller distributing commands among motor, encoder, and safety-related nodes. The 1 Mb/s rate is useful for short machine-internal networks, while differential CANH/CANL signaling helps the system operate reliably over cable runs and shared equipment grounds. The external slope-control feature is valuable when switching drives and motor returns create EMI risks. The controller must still meet the bus timing budget, and the complete network should be validated for termination, grounding, fault recovery, and electromagnetic emissions.
Được đề xuất
Building and Elevator Networks
The MCP2551T-E/SN suits building-control, elevator, and access-system CAN networks where distributed I/O modules communicate over a robust differential bus. Its verified 1 Mb/s capability, 5 V supply range, and support for 12 V and 24 V systems align with equipment that interfaces a low-voltage controller to a higher-energy field bus. The 8-SOIC package supports compact surface-mount assemblies, and external slope control helps contain emissions around relays and long wiring. Confirm installation-specific surge, isolation, grounding, and fault requirements before choosing the transceiver.
Được đề xuất
Embedded Sensor and Actuator Networks
MCP2551T-E/SN can form the CAN physical-layer endpoint for embedded sensor hubs, actuator modules, and remote I/O nodes. The one-driver/one-receiver arrangement matches a single high-speed CAN node, while the differential bus allows multiple wired nodes to share a common communication medium. A 1 Mb/s link can reduce update latency when the cable length and topology permit it. The 4.5 V to 5.5 V transceiver supply should be separated cleanly from noisy actuator supplies, and the finished design should verify termination, ground-fault behavior, and EMI performance.
Được đề xuất
Instrumentation and Test Equipment
MCP2551T-E/SN is suitable for bench and field-instrumentation equipment that needs a high-speed, fault-tolerant CAN physical interface. The 1 Mb/s capability supports responsive command and measurement traffic, while the verified external slope-control option can be tuned to reduce RFI in a compact instrument chassis. Place the transceiver close to the bus connector and controller, provide local supply decoupling, and maintain a controlled ground reference between logic and cable-side circuitry. The complete instrument design should be tested for emissions, susceptibility, and behavior during bus faults.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MCP2551T-E/SN — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MCP2551T-I/SN | MCP2561-E/SN | MCP2562-E/SN | SN65HVD230D |
|---|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Texas Instruments |
| Product Type | High-speed CAN transceiver | High-speed CAN transceiver | CAN transceiver | CAN transceiver | CAN transceiver |
Bảo phân biệt quan trọng
- High-speed CAN capability (vsSN65HVD230D)
- External slope control (vsMCP2551T-I/SN)
- System-level CAN compatibility (vsSN65HVD230D)
- Fault-aware physical-layer role (vsMCP2562-E/SN)
Ghi chú thiết kế
Place the MCP2551T-E/SN close to the CANH/CANL connector and the host CAN controller. Keep the high-current bus-side return path and logic-side ground reference short, and follow the manufacturer layout guidance in the official datasheet. The verified material does not provide a complete PCB layout, so do not infer exact creepage, decoupling, or protection distances from the summary alone. Validate the final arrangement with the complete mechanical and transient requirements of the installation.
Do not treat a matching SOIC-8 footprint as proof that every CAN transceiver is interchangeable. The supplied cross-reference results specifically warn that SN65HVD230 differs in supply voltage or pin function, while MCP2561 requires its listed differences to be considered. Before substitution, compare TXD/RXD functions, supply range, standby or sleep behavior, CANH/CANL pin positions, bus fault handling, timing, and exposed-pad or package details.
Use the MCP2551T-E/SN externally controlled slope feature as part of the EMI design rather than treating it as an automatic guarantee. Balance edge rate against timing margin and bus integrity, especially around switching supplies, motor returns, long cables, and high-current nodes. Keep the CAN bus physically separated from noisy power paths where possible, use the specified termination arrangement at the bus ends, and test radiated emissions with the final enclosure, cable, and load configuration.
The verified electrical scope confirms a 4.5 V to 5.5 V transceiver supply, but it does not provide the exact local-capacitor values or supply-current limits needed to calculate a board power budget. Follow the manufacturer datasheet for recommended decoupling and absolute maximum ratings. Keep the transceiver supply return continuous through the PCB, separate noisy actuator current from the logic reference where practical, and verify the controller and transceiver sequencing during power-up and power-down.
Thông tin tuân thủ
The verified distributor listing states that MCP2551T-E/SN is RoHS compliant. REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status were not explicitly supplied and are therefore marked unknown.
