MCP2515T-E/ML - 2.7V CAN 2.0B Controller | Microchip
MPN: MCP2515T-E/ML ✓ Hoạt độngMCP2515T-E/ML Tóm tắt
A CAN controller is a dedicated communications semiconductor that converts between a host processor and the physical CAN bus. In the hierarchy, the MCP2515 is a CAN interface controller, a protocol-handling IC, and a semiconductor used within embedded control, automotive, industrial, and communications systems. Unlike a controller with an integrated transceiver, it requires an external CAN transceiver for connection to the physical bus.
The device includes two acceptance masks and six acceptance filters, allowing the host processor to reject unwanted messages before further processing. Programmable bit timing supports adaptable communication rates, while standard and extended frame support accommodates different identifier formats. The manufacturer datasheet also identifies low-power mode and single-transmission mode as operating features for systems that need controlled power behavior or deterministic message handling.
The SPI host interface separates CAN protocol processing from the host CPU, reducing bus traffic compared with a software CAN implementation. The controller manages reception buffers, transmission queues, filtering, status flags, and interrupts, allowing the host to manage accepted frames through interrupt-driven software. Its operating voltage range permits use in 3.3 V and 5 V embedded systems without requiring a separate family of controllers for each supply level.
Typical applications include automotive body and comfort modules, industrial motor controllers, building automation equipment, battery-powered sensors, and distributed control systems. The 20-pin QFN package supports compact designs, while the external CAN transceiver can be selected according to bus topology, isolation, speed, and regulatory requirements.
Design the SPI interface for the host processor's electrical limits, connect the CAN RX and TX pins to a suitable transceiver, and place termination only at the physical ends of the bus. Confirm oscillator timing, filter configuration, interrupt handling, and logic levels against the manufacturer pin description and application guidance before production release.
This page combines protocol capabilities, variant distinctions, package information, pin assignments, sourcing guidance, and practical implementation notes. It also organizes confirmed same-package drop-in options and identifies engineering checks that are important beyond the basic CAN 2.0B feature description.
Bộ thay thế dễ dàng lắp đặt cho MCP2515T-E/ML — 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 MCP2515T-E/ML (cùng hình factor và footprint) — khác nhau ở Package, Product Type, CAN Specification.
MCP2515-I/ML
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Xem tài liệu →MCP2515T-E/ML Thông số kỹ thuật
| Product Type | Stand-alone CAN controller with SPI interface |
| CAN Protocol Version | CAN 2.0B |
| Điện áp cung cấp hoạt động | 2.7 V to 5.5 V |
| Supported Frame Types | Standard data frames, extended data frames, and remote frames |
| Acceptance Masks | 2 masks |
| Acceptance Filters | 6 filters |
| Host Interface | SPI |
| Bit Timing | Programmable |
| Transmission Mode | Single-transmission mode |
| Power-Saving Feature | Low-power mode |
| Hộp | 20-QFN, 4 mm x 4 mm |
| Kiểu lắp đặt | Surface mount |
| Integrated CAN Transceiver | No; external CAN transceiver required |
Cấu hình chân MCP2515T-E/ML
| Chân 1 | SCK — SPI clock input |
| Chân 2 | SO — SPI data output |
| Chân 3 | SI — SPI data input |
| Chân 4 | GND — Ground |
| Chân 5 | NC — Not connected |
| Chân 6 | VDD — Positive device supply |
| Chân 7 | RXBUF — Receive-buffer output |
| Chân 8 | TXD — CAN transmit data input to external transceiver |
| Chân 9 | RXD — CAN receive data input from external transceiver |
| Chân 10 | CS — SPI chip-select input |
| Chân 11 | INT — Interrupt output |
| Chân 12 | VDD — Positive device supply |
| Chân 13 | VSS — Negative device supply |
| Chân 14 | VSS — Negative device supply |
| Chân 15 | STB — Standby control input |
| Chân 16 | CLKOUT — Clock output |
| Chân 17 | GND — Ground |
| Chân 18 | NC — Not connected |
| Chân 19 | NC — Not connected |
| Chân 20 | NC — Not connected |
Ứng dụng tiêu biểu
MCP2515T-E/ML phù hợp cho 6 Áp dụngs: Automotive Body Control Module, Industrial Motor Controller, Building Automation Controller, Battery-Powered Sensor Node, Distributed Control Network, Robotics Control Platform.
Automotive Body Control Module
The MCP2515T-E/ML suits an automotive body-control module that must exchange diagnostic and status information over a CAN network. Its CAN 2.0B controller handles standard and extended data frames as well as remote frames, while the 2.7 V to 5.5 V operating range accommodates vehicle power regulation. The SPI interface connects the controller to a host microcontroller, and six acceptance filters with two masks help reject unrelated traffic before software processing. The 20-QFN, 4 mm x 4 mm package also conserves board area in compact control modules. A qualified external CAN transceiver is required for the physical network connection.
Được đề xuất
Industrial Motor Controller
The MCP2515T-E/ML can serve as the network interface in an industrial motor controller that coordinates commands, status, and fault information over a CAN bus. Programmable bit timing supports communication-rate configuration, while filtering reduces the number of irrelevant frames transferred to the host processor. The controller's standard-frame, extended-frame, and remote-frame support gives the firmware flexibility for addressing different node types. Operating from 2.7 V to 5.5 V permits use with 3.3 V and 5 V embedded subsystems. Its 20-QFN package requires careful PCB layout and an external transceiver selected for the industrial bus environment.
Được đề xuất
Building Automation Controller
The MCP2515T-E/ML is appropriate for building automation gateways that connect lighting, HVAC, access, and sensor nodes to a shared CAN network. The six acceptance filters and two masks can isolate relevant traffic, reducing host SPI activity and software workload. The SPI host interface allows a microcontroller to configure bit timing, read status flags, and handle accepted frames through interrupts. Low-power mode is useful in controllers with intermittent energy budgets or duty-cycled operation. The 2.7 V to 5.5 V range supports common embedded supply levels, while the 20-QFN package helps reduce board area in compact room and panel controllers.
Được đề xuất
Battery-Powered Sensor Node
A battery-powered environmental or industrial sensor node can use the MCP2515T-E/ML when CAN is preferred for longer-distance, multi-node communications. The controller supports standard and extended data frames for compact status messages and larger payloads, while programmable bit timing allows the node to match a defined network rate. Its low-power mode supports energy-conscious behavior between activity intervals, although the final duty cycle and sleep-current budget must be verified from the electrical characteristics. The 2.7 V to 5.5 V operating range supports regulated sensor-system rails, and the compact 20-QFN package preserves space in portable or embedded installations.
Được đề xuất
Distributed Control Network
The MCP2515T-E/ML works as a communication endpoint in a distributed control system where multiple embedded modules exchange commands and measurements. CAN 2.0B compatibility and support for standard and extended identifiers allow nodes to participate in networks using different message priorities. Two acceptance masks and six acceptance filters provide configurable traffic admission, helping each node focus on relevant identifiers. The SPI interface separates protocol handling from the application processor and permits interrupt-driven reception. With a 2.7 V to 5.5 V supply range and a 20-QFN package, the device is well suited to compact control boards operating from 3.3 V or 5 V rails.
Được đề xuất
Robotics Control Platform
The MCP2515T-E/ML is suitable for robot controllers that distribute motion commands, position feedback, and diagnostic data across multiple CAN-connected modules. Extended-frame support permits identifiers or payloads beyond the standard-frame format, while acceptance filters let the robot's central controller ignore irrelevant traffic. The SPI host interface supports straightforward integration with an embedded processor, and programmable bit timing provides a configurable network rate. The 20-QFN package is useful in compact robot electronics, and the 2.7 V to 5.5 V range works with common regulated rails. An external transceiver must be selected for the robot's bus topology, distance, noise environment, and isolation requirements.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MCP2515T-E/ML — 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 | MCP2515-I/ML | MCP2515T-I/ML | MCP2515-E/ML |
|---|---|---|---|---|
| Package | 20-QFN, 4 mm x 4 mm | 20-QFN, 4 mm x 4 mm | 20-QFN, 4 mm x 4 mm | 20-QFN, 4 mm x 4 mm |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Controller Type | Stand-alone CAN controller | Stand-alone CAN controller | Stand-alone CAN controller | Stand-alone CAN controller |
| CAN Protocol | CAN 2.0B | CAN 2.0B | CAN 2.0B | CAN 2.0B |
| Operating Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Host Interface | SPI | SPI | SPI | SPI |
| Frame Support | Standard, extended data, and remote frames | Standard, extended data, and remote frames | Standard, extended data, and remote frames | Standard, extended data, and remote frames |
| Acceptance Filters | 6 filters and 2 masks | 6 filters and 2 masks | 6 filters and 2 masks | 6 filters and 2 masks |
| Temperature Grade | E ordering code | I ordering code | I ordering code | E ordering code |
| T Ordering Code | Present | Absent | Present | Absent |
Bảo phân biệt quan trọng
- Extended-temperature ordering option within the same package (vsMCP2515T-I/ML)
- Six acceptance filters reduce unnecessary host processing (vsMCP2515-I/ML)
- Supports standard, extended, and remote CAN frames (vsMCP2515-E/ML)
- Single package supports 3.3 V and 5 V embedded rails (vsMCP2515T-I/ML)
Ghi chú thiết kế
Place the MCP2515T-E/ML close to the SPI host and external CAN transceiver, and route the SPI clock away from CAN TX and RX paths. Keep the controller's ground connections short to the ground plane and use the pin-description table in the manufacturer datasheet when assigning both supply pins. The 20-QFN footprint requires careful thermal-pad and lead inspection during assembly because pin pitches are finer than those of a typical SOIC package.
Configure oscillator timing and programmable bit timing against the network's required bit rate, sample point, and tolerance budget. Use the acceptance masks and six acceptance filters to reject traffic that the host does not need, but test each identifier and mask combination to prevent unintended frame rejection. The controller's RXBUF, INT, RXD, and TXD signals have different roles and should not be treated as interchangeable SPI or bus signals.
Power the controller from a stable rail within its documented 2.7 V to 5.5 V operating range, and ensure the SPI host levels are compatible with the selected logic voltage. Check supply sequencing, reset or standby behavior, and the external transceiver's requirements before enabling communication. Low-power mode can reduce consumption, but wake behavior and state retention must be included in the system power budget and firmware timing.
Do not connect the controller directly to the physical CAN bus; use a separate transceiver for CANH and CANL. Install termination only at the two physical ends of the bus, and account for common-mode voltage, isolation, bus length, and propagation delay when selecting the transceiver. Substituting a SOIC- or PDIP-package family member would require a board change and is not a direct replacement for the 20-QFN MCP2515T-E/ML.
Thông tin tuân thủ
No explicit compliance declarations are listed for the exact MCP2515T-E/ML ordering code. Confirm RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status with Microchip using the exact MPN before production release.
