MCP2515-E/P - 1Mbps SPI CAN Controller | Microchip
MPN： MCP2515-E/P ✗ 停產MCP2515-E/P 概覽
A CAN controller is a semiconductor interface device that moves frames between a host controller and a CAN bus. In the hierarchy, the MCP2515-E/P is a CAN interface controller, a bus controller, an interface IC, and a semiconductor. Unlike a CAN transceiver, it does not directly connect to the bus differential drivers and receivers; an external transceiver is required. Its SPI host interface gives a microcontroller access to CAN transmission, reception, filtering, masks, buffers, status, and interrupt functions.
Key verified features include CAN 2.0B operation, 1 Mb/s communication, support for standard and extended data and remote frames, and two receive buffers with masks and filters. The 5 V supply and -40°C to +125°C ambient range suit industrial equipment and temperature-tolerant embedded systems. The SPI host connection also simplifies integration with conventional microcontrollers that lack an integrated CAN controller.
Technically, the device separates CAN protocol processing from physical-layer signaling. The host writes and reads controller registers over SPI, while the CAN module manages frame handling and bus communication through CAN_TX and CAN_RX connections to an external transceiver. Firmware must correctly configure bit timing, acceptance masks, filters, interrupt handling, transmit priorities, and error behavior before operation.
Typical uses include industrial CAN gateways, vehicle accessory modules, building-control equipment, embedded instrumentation, robotics controllers, and retrofit communication for legacy equipment. The DIP package favors through-hole prototypes and serviceable assemblies, although production designs may prefer a smaller surface-mount package after a deliberate footprint change.
Designers should pair the controller with a compatible 5 V CAN transceiver, validate termination at both ends of the bus, and keep SPI and CAN routing away from noisy power stages. Pin multiplexing and alternate package options should be checked against the selected family member rather than inferred from the base device name.
This page combines verified manufacturer and distributor information, practical integration guidance, purchasing data, and an explicit review of drop-in replacement evidence. It distinguishes verified facts from missing package, pricing, lifecycle, and pin-level data so engineers can make a defensible sourcing decision.
直接替換替代品，適用於 MCP2515-E/P — 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-E/P （相同外形與佔位） — 差異在於 CAN Specification, Host Interface, Maximum CAN Data Rate, Mounting Type, Package.
此產品無可直接替換的替代品。
申請替代品MCP2515-E/P 規格
| Product Type | Stand-alone CAN controller with SPI interface |
| CAN Specification | CAN 2.0B |
| Maximum CAN Data Rate | 1 Mb/s |
| Supported Frame Types | Standard data frames, extended data frames, and remote frames |
| Host Interface | SPI |
| 供應電壓 | 5 V |
| 工作溫度範圍 | -40°C to +125°C |
| Receive Buffers | 2 receive buffers |
| Receive Filtering | Acceptance masks and filters |
| Target Package | 18-pin DIP |
| Package Construction | Lead-free plastic package |
| 安裝類型 | Through-hole |
| Technology | CMOS |
| CAN Physical Layer | External CAN transceiver required |
| Typical External Bus Pair | CANH and CANL |
| Manufacturer Document | DS20001801K |
| Lead-Free Status | Lead-free package identified in verified source |
MCP2515-E/P lead-free plastic package 腳位配置指南
MCP2515-E/P（lead-free plastic package 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-E/P.
請參閱 資料表 以查看完整腳位配置。
典型應用
MCP2515-E/P 適用於 6 應用s: Industrial CAN Control Module, Vehicle Accessory Gateway, Building Automation Node, Robotics Communication Hub, Legacy Equipment Retrofit, Embedded Test and Diagnostics.
Industrial CAN Control Module
The MCP2515-E/P fits an industrial controller that must exchange prioritized CAN frames with remote sensors, actuators, or production equipment. Its verified 1 Mb/s capability, CAN 2.0B support, two receive buffers, and acceptance filtering provide a practical host-managed CAN node. The controller operates from 5 V across -40°C to +125°C, allowing deployment in temperature-tolerant equipment when the external transceiver and enclosure have suitable ratings. Firmware must configure nominal bit timing, identifier masks, filters, interrupts, and error handling before cyclic data exchange begins.
推薦
Vehicle Accessory Gateway
The MCP2515-E/P can serve as the host-controlled CAN node in a vehicle accessory gateway that translates switches, status, and diagnostic data between a conventional microcontroller and the vehicle network. Its support for standard and extended identifiers allows the firmware to handle both conventional and extended-frame traffic, while masks and filters reduce irrelevant messages presented to the host. The -40°C to +125°C range is useful for harsh environments, but an appropriate external 5 V CAN transceiver and automotive-grade system qualification must be verified separately.
推薦
Building Automation Node
For building automation, the MCP2515-E/P can connect sensors, HVAC controllers, lighting modules, or access equipment to a CAN field bus while a host microcontroller manages configuration and diagnostics. Its two receive buffers and acceptance masks support selective message processing, and the 1 Mb/s maximum rate provides ample headroom for many low-bandwidth building nodes. The design must pair the controller with a suitable CAN transceiver, observe termination and routing rules, and ensure the transceiver and enclosure match the installation's environmental requirements.
推薦
Robotics Communication Hub
The MCP2515-E/P is suitable for a robot communication hub that distributes commands and collects status between a host processor and distributed motion or sensor modules. CAN's deterministic message-oriented structure and the controller's standard, extended, and remote frame support permit different traffic classes to coexist. The SPI host interface keeps the MCU side electrically straightforward. Firmware should assign identifiers carefully, configure acceptance filters for real-time messages, and isolate CAN routing from motor power and high-current switching paths.
推薦
Legacy Equipment Retrofit
The MCP2515-E/P can add CAN connectivity to legacy equipment that has an accessible SPI host interface but lacks integrated CAN hardware. The 18-pin DIP package is convenient for prototype boards, repair assemblies, and manually wired test fixtures, while the controller handles CAN framing and buffer management. Installation still requires a compatible external transceiver, correct 120-ohm-style termination at the bus endpoints as applicable, grounding and surge protection appropriate to the environment, and firmware drivers matching the host processor.
推薦
Embedded Test and Diagnostics
The MCP2515-E/P can serve in diagnostic equipment that captures, filters, and forwards CAN traffic for service analysis or production test. Two receive buffers allow the host to manage multiple incoming frames, while masks and filters help isolate identifiers relevant to the test objective. Its 5 V CMOS interface and SPI host connection simplify laboratory integration with automated test systems. Accurate results depend on correct oscillator and bit-time settings, deterministic interrupts, disciplined message timing, and a separate CAN transceiver with suitable protection.
推薦
推薦產品摘要
此產品無常見問題。
工程參考資料，適用於 MCP2515-E/P — 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 |
|---|---|
| Brand | Microchip Technology |
| Package | 18-pin DIP |
| Product Type | Stand-alone CAN controller |
| CAN Specification | CAN 2.0B |
| Maximum Data Rate | 1 Mb/s |
| Host Interface | SPI |
| Supply Voltage | 5 V |
| Operating Temperature | -40°C to +125°C |
| Frame Support | Standard data, extended data, and remote frames |
| Receive Buffers | 2 receive buffers |
設計說明
Separate the SPI host bus from the CAN bus routing and keep both away from high-current switching nodes. Place the external CAN transceiver close to the connector and controller, provide a short return path, and apply differential-routing discipline to CANH and CANL. The MCP2515-E/P is a protocol controller, so the transceiver, connector protection, and termination strategy are as important as the IC placement for reliable field-bus operation.
Design a clean 5 V rail for the controller and follow the family's required decoupling and pin connections exactly. The verified material establishes a 5 V supply but does not include the full electrical limit table, so voltage tolerance and capacitor values must be taken from DS20001801K rather than inferred. Ensure the selected transceiver's supply and interface levels are electrically compatible with the host MCU and controller.
Do not treat a family member with SO, SSOP, or other package options as a drop-in substitute for the 18-pin DIP MCP2515-E/P. Before replacing a socketed device, verify every package pin, supply limit, clock requirement, interrupt behavior, and register compatibility. Also do not confuse the MCP2515 controller with a combined controller-transceiver; the external bus driver remains a separate design responsibility.
Configure oscillator and CAN bit-timing values from the actual bus topology and crystal or clock source. Standard and extended identifiers share hardware filters, masks, and buffers, so deterministic allocation is essential when multiple message types must coexist. Validate worst-case interrupt latency and error handling in firmware because the controller's nominal 1 Mb/s capability does not guarantee successful communication on every physical bus.
The verified operating-temperature rating is -40°C to +125°C, but system reliability depends on keeping the controller and transceiver within their local ambient and junction limits. In a sealed enclosure, estimate heat rise from the regulator, transceiver, and surrounding electronics, not from the controller rating alone. Provide copper area and ventilation consistent with the selected package and assembly method, and verify the complete system's temperature behavior.
合規資訊
The verified distributor excerpt identifies MCP2515-E/P as a lead-free plastic-package device. No verified RoHS, REACH, AEC-Q100, halogen-free, or conflict-minerals declaration was supplied.
