MCP2515-I/ML - 1 Mbps SPI CAN Controller | Microchip
MPN： MCP2515-I/ML ✓ 啟用中MCP2515-I/ML 概覽
A CAN controller is a network-interface IC that manages frames on a Controller Area Network bus. Within the product hierarchy, the MCP2515 is a CAN protocol controller, not a physical-layer transceiver. It connects to a host processor through SPI and communicates with CANH and CANL bus pins through a separate transceiver, allowing the controller to be reused across many embedded systems.
Key features include support for standard and extended data frames, remote frames, receive filters, programmable acceptance masks, data-byte filtering, and upgraded throughput. The device also provides sleep and standby operating states, helping reduce current consumption when the embedded system does not require continuous CAN reception. Its 3.3 V and 5 V operating support accommodates both industrial logic levels and conventional 5 V CAN systems.
The controller architecture separates CAN frame processing from the physical bus. A host microcontroller reads status registers, controls transmission buffers, receives interrupt requests, and exchanges CAN data through SPI. This division makes the MCP2515 suitable for microcontrollers and application processors that do not include an integrated CAN controller, while allowing the physical transceiver to be selected according to bus topology, isolation, speed, and regulatory requirements.
Typical applications include automotive body and comfort modules, industrial automation equipment, robotics, building controls, medical instrumentation, and embedded communications gateways. In each case, the SPI host interface simplifies integration while the CAN controller provides protocol handling, acceptance filtering, interrupt-driven reception, and support for both classic CAN data-frame formats.
Designers should verify the exact pin functions and exposed-pad connection against the manufacturer datasheet before layout, and should account for the external CAN transceiver and termination network. The SPI interface and CAN bus grounds also require careful signal-integrity planning, particularly when long traces, connectors, or electrically noisy subsystems are present on the assembled PCB.
This page consolidates the verified Microchip family documentation, distributor availability information, drop-in replacement research, and practical selection guidance. It also distinguishes protocol-controller replacements from transceiver-integration devices so that engineers can assess footprint, firmware, and system-level compatibility before changing a qualified BOM.
直接替換替代品，適用於 MCP2515-I/ML — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MCP2515-I/ML （相同外形與佔位） — 差異在於 Automotive Qualification, Package.
MCP2510-I/ML
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MCP2515-I/MLVAO
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MCP2515T-E/MLVAO
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MCP2515-I/ML 規格
| Product Type | Stand-alone CAN controller |
| CAN Protocol Support | CAN Version 2.0B |
| Maximum CAN Data Rate | 1 Mbps |
| Host Interface | SPI |
| Supported Frame Types | Standard, extended data, and remote frames |
| Supply Voltage Support | 3.3 V and 5 V |
| Low-Power Modes | Sleep and standby |
| Receive Filters | Two acceptance masks and six acceptance filters |
| Data-Byte Filtering | Supported |
| Time-Triggered Protocol Support | Supported |
| 封裝 | 20-QFN, 4 x 4 mm |
| 安裝類型 | Surface mount |
| Automotive Qualification | AEC-Q100 |
| Temperature Grade | Industrial |
| Transceiver Integration | None; external CAN transceiver required |
MCP2515-I/ML 20-qfn, 4 x 4 mm 腳位配置指南
MCP2515-I/ML（20-qfn, 4 x 4 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： MCP2515-I/ML.
請參閱 資料表 以查看完整腳位配置。
典型應用
MCP2515-I/ML 適用於 6 應用s: Automotive Body Control Module, Industrial Automation Controller, Robotics Network Interface, Building Control and HVAC Equipment, Medical Instrument Communication, Embedded CAN Communication Gateway.
Automotive Body Control Module
The MCP2515-I/ML fits an automotive body or comfort module because it provides a dedicated CAN 2.0B controller with a maximum 1 Mbps data rate and SPI access from the host processor. It handles standard and extended frames, remote frames, programmable acceptance masks, and interrupt-driven reception without requiring a CAN controller inside the MCU. The controller must still be paired with an automotive-qualified external transceiver, suitable bus protection, and validated decoupling. Its AEC-Q100-capable family variants support automotive qualification workflows, while the exact temperature grade and qualification status of the selected ordering code must be confirmed against the manufacturer documentation.
推薦
Industrial Automation Controller
The MCP2515-I/ML is appropriate for industrial automation equipment where a PLC, embedded Linux controller, or application processor needs reliable CAN communication over a 1 Mbps bus. Its SPI host interface separates high-level firmware tasks from CAN frame processing, while six acceptance filters and two masks can reduce irrelevant interrupt traffic. Data-byte filtering and time-triggered protocol support add flexibility for systems that use periodic process data. The design should use an industrial-rated external transceiver and verify the controller's specified temperature range, grounding strategy, and isolation requirements against the installation conditions.
推薦
Robotics Network Interface
The MCP2515-I/ML can provide a dedicated CAN interface for robots that distribute motion commands, sensor status, and safety-related state between modules. CAN 2.0B frame handling supports both standard and extended identifiers, while the SPI interface connects efficiently to a local microcontroller. Acceptance filtering is particularly useful on multi-node robots because it can restrict accepted identifiers before higher-level software processes them. The external transceiver should be selected for the robot's bus length, common-mode environment, and fault-containment requirements, and the PCB should preserve a short, controlled return path from the controller to the transceiver.
推薦
Building Control and HVAC Equipment
The MCP2515-I/ML suits building-control and HVAC equipment that uses CAN for sensor polling, actuator commands, and diagnostic messaging. Its 3.3 V and 5 V operating support accommodates different embedded logic environments, and the 1 Mbps capability provides more bandwidth than required by many building networks. Sleep and standby modes can reduce power use during idle periods. A production design should confirm the exact industrial temperature range, use an external transceiver with the required common-mode tolerance, and implement bus termination only at the two physical endpoints of the network.
推薦
Medical Instrument Communication
The MCP2515-I/ML can support CAN communication in a medical instrument when the architecture requires the protocol controller to be separated from the host processor. It supports standard and extended frames, programmable filtering, and a maximum 1 Mbps data rate, making it suitable for distributed sensors, actuators, and service modules. Because this component does not include an isolated transceiver, a medically appropriate isolation strategy must be designed separately. Engineers should verify the component's environmental ratings, isolation architecture, electromagnetic compatibility, and applicable product-specific regulatory requirements rather than assuming the controller qualification alone satisfies the complete system requirements.
推薦
Embedded CAN Communication Gateway
The MCP2515-I/ML is well suited to gateways that bridge an embedded host processor to legacy CAN equipment. The SPI interface allows the host to inspect status registers, configure filters, transmit frames, and service receive interrupts without implementing the complete CAN protocol in software. At the 1 Mbps maximum rate, the controller supports demanding machine and building buses, while acceptance masks and data-byte filtering reduce host workload. The gateway still requires an external transceiver, correct 120-ohm endpoint termination, robust grounding, and firmware designed around the MCP2515 interrupt and buffer behavior.
推薦
推薦產品摘要
工程參考資料，適用於 MCP2515-I/ML — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MCP2510-I/ML | MCP2515-I/MLVAO | MCP2515T-E/MLVAO |
|---|---|---|---|---|
| Package | 20-QFN (4x4 mm) | 20-QFN (4x4 mm) | 20-QFN (4x4 mm) | 20-QFN (4x4 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Controller Architecture | Stand-alone CAN controller | Stand-alone CAN controller | Stand-alone CAN controller | Stand-alone CAN controller |
| CAN Protocol | CAN Version 2.0B | CAN Version 2.0B | CAN Version 2.0B | CAN Version 2.0B |
| Host Interface | SPI | SPI | SPI | SPI |
| Throughput and Filtering Features | Upgraded throughput, data-byte filtering, and time-triggered protocol support | Legacy controller without MCP2515 upgraded feature set | MCP2515 upgraded feature set | MCP2515 upgraded feature set |
| Supply Voltage Support | 3.3 V and 5 V | 3.3 V and 5 V | 3.3 V and 5 V | 3.3 V and 5 V |
| External Transceiver Required | Yes | Yes | Yes | Yes |
主要差異化特點
- Newer CAN controller feature set (對比MCP2510-I/ML)
- Automotive-qualified ordering path (對比MCP2515-I/MLVAO)
- Dedicated protocol-controller architecture (對比TCAN4550-Q1)
設計說明
Place the MCP2515-I/ML, its SPI host interface, and the external CAN transceiver according to the manufacturer layout guidance. Keep the SPI clock and data routes short, provide a continuous ground reference beneath the interface, and route CAN bus traces away from switching nodes and high-current paths. The controller's exposed-pad requirements and the transceiver layout must be verified from the applicable datasheets before fabrication.
Do not treat the MCP2515-I/ML as a complete CAN bus interface. The IC is a protocol controller and requires an external transceiver for CANH and CANL. Install 120-ohm termination only at the two physical endpoints of the bus, not at every node. Also avoid assuming that identical package dimensions guarantee interchangeability; verify pin functions, exposed-pad connection, qualification, and firmware support.
Use the manufacturer's recommended transceiver, termination, and protection arrangement for 1 Mbps operation. Bus topology, stub length, connector transitions, grounding, and common-mode noise materially affect signal integrity even when the controller's protocol handling is correct. Validate the assembled network with eye-quality measurements under worst-case bus loading rather than relying only on successful reception by the controller.
合規資訊
The supplied component listing identifies automotive AEC-Q100 capability. RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations were not included in the verified excerpts and therefore remain unknown.
