MCP25020-I/P - 8-Input CAN I/O Expander | Microchip
MPN: MCP25020-I/P ✓ فعالMCP25020-I/P نمای کلی
A CAN I/O expander is an interface IC that sits between a CAN controller or MCU and external digital circuitry. It reduces the number of discrete GPIO pins required on the host controller while adding standardized remote I/O. The MCP25020 family supports CAN V2.0B active communication, allowing digital input states, output states, and PWM functions to be managed across a CAN bus. Its 25 MHz clock specification is separate from the CAN bus data rate, which remains up to 1 Mb/s according to the manufacturer product description.
Key verified features include eight I/O channels, CAN V2.0B support, a maximum CAN bus rate of 1 Mb/s, a 25 MHz clock, 2.75 V to 5.5 V operating supply, 25 mA output source and sink capability, EEPROM, power-on reset, PWM outputs, and push-pull output type. The lack of an interrupt output may make periodic polling preferable in systems where the host MCU does not have an available interrupt path. The device is supplied in a 14-pin PDIP package according to the verified distributor data.
The MCP25020-I/P is suited to industrial automation, vehicle accessory modules, remote sensor nodes, building controls, motor-control interfaces, and embedded CAN systems. Its I/O channels can be used for digital sensing or control, while PWM outputs are useful for simple actuator, lamp, or proportional-control functions. Design validation should confirm CAN transceiver interoperability, supply decoupling, pin-level voltage limits, output loading, and the exact configuration of each channel before production release.
Because the verified data does not provide complete pin-level electrical limits or a full manufacturer pinout table, the pinout is marked as unavailable rather than inferred. Likewise, pricing tiers use the verified LCSC starting price as the only explicit price reference; all other quantity pricing remains data-needed. The 14-pin PDIP package maps to the canonical package library key dip-14.
جایگزین‌های drop-in برای MCP25020-I/P — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای MCP25020-I/P (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Mounting Type, Product Type, Automatic Transmit Buffers, Programmable Filters.
MCP25020-E/P
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←MCP25020T-E/SL
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←MCP25020-I/P مشخصات
| Product Type | CAN I/O expander |
| Number of Digital I/O | 8 channels |
| CAN Standard | CAN V2.0B active |
| Maximum CAN Bus Rate | 1 Mb/s |
| Clock Frequency | 25 MHz |
| Supply Voltage Range | 2.75 V to 5.5 V |
| PWM Outputs | Up to 2 user-configurable outputs |
| نوع خروجی | Push-pull |
| Output Source Current | 25 mA |
| Output Sink Current | 25 mA |
| Nonvolatile Storage | EEPROM |
| Power-On Reset | Supported |
| Interrupt Output | No |
| بسته‌بندی | 14-pin PDIP |
| نوع نصب | Through-hole |
| وضعیت چرخه عمر | Active |
| Manufacturer | Microchip Technology |
راهنمای پیکربندی پین MCP25020-I/P 14-pin pdip
پیکربندی پین برای MCP25020-I/P (پکیج 14-pin pdip). شماره‌گذاری پایه‌ها، عملکردها و نمودارهای اتصال در دیتاشیت سازنده تعریف شده است. برای footprint دقیق و دستورالعمل‌های لحیم‌کاری به آن مراجعه کنید.
داده پین‌آوت تفصیلی موجود نیست برای MCP25020-I/P.
به دیتاشیت برای پیکربندی کامل پین‌ها.
کاربردهای معمول
MCP25020-I/P مناسب است برای 7 کاربردs: Industrial CAN Remote I/O, Vehicle Accessory Control Module, Remote Sensor Node, Building Control Interface, Motor and Valve Control Interface, LED and Indicator Control, Embedded Test and Measurement Module.
Industrial CAN Remote I/O
MCP25020-I/P fits industrial CAN systems that need to add eight configurable digital I/O channels without consuming eight host-controller GPIO pins. Its CAN V2.0B support and 1 Mb/s maximum bus rate allow the module to communicate with a remote supervisory controller, while the 2.75 V to 5.5 V supply range supports common embedded rails. The design should account for the absence of a verified interrupt output, so status updates may require polling. The 25 mA source and sink figures must also be checked against the actual load and duty cycle before external driving.
پیشنهادی
Vehicle Accessory Control Module
The MCP25020-I/P can serve as a CAN-connected auxiliary I/O block in a vehicle accessory module, provided its temperature and qualification requirements are independently verified. Eight digital channels can represent switches, sensors, or relay-control signals, and up to two PWM outputs can support basic proportional functions. Its 25 mA output source and sink ratings require conservative load calculations, while the lack of a verified interrupt output favors deterministic polling. Automotive release should wait for manufacturer confirmation of the upper temperature rating and AEC-Q100 status.
پیشنهادی
Remote Sensor Node
Use MCP25020-I/P as a remote sensor interface when several discrete digital sensors must be connected through a CAN bus. The eight I/O channels can consolidate binary sensor inputs, while the configurable PWM capability is useful for actuator or indicator control when the electrical load permits. The 2.75 V to 5.5 V operating supply fits many 3.3 V and 5 V embedded systems, but input thresholds, isolation, wiring protection, and grounding must be verified separately. Because the supplied data confirms no interrupt output, the host firmware should plan periodic status polling.
پیشنهادی
Building Control Interface
MCP25020-I/P is suitable for distributed building-control equipment that needs local digital inputs and outputs behind a CAN backbone. Inputs can monitor contactors, door states, or digital sensors, while outputs can drive suitable low-current control stages. The 1 Mb/s CAN capability provides substantial network headroom, and the 8-channel I/O count simplifies expansion compared with allocating dedicated host GPIO pins. The design must keep the 25 mA source and sink limits separate from relay-driver current requirements, and should provide protection for inductive or long-wired external loads.
پیشنهادی
Motor and Valve Control Interface
The MCP25020-I/P can provide a low-level CAN command interface for simple motor, valve, or proportional-control subsystems. Its configurable PWM outputs are useful when the actuator drive stage accepts a PWM command, while the digital channels can handle limit switches or enable signals. The expander should not be treated as the power driver: relay, MOSFET, or transistor stages must provide the required load current and inductive-energy protection. The verified 25 mA source and sink values are output-device references and do not replace actuator-driver calculations.
پیشنهادی
LED and Indicator Control
MCP25020-I/P can control grouped indicators or simple LED functions through configurable digital outputs and up to two PWM outputs. PWM is useful when variable brightness or proportional indication is required, while digital outputs support fixed on/off states. The 25 mA source and sink capability is the relevant verified output reference, but actual LED current should be limited with appropriate resistors or a driver so that channel loading, supply noise, and thermal conditions remain acceptable. The no-interrupt feature also favors deterministic update scheduling from the CAN host.
پیشنهادی
Embedded Test and Measurement Module
MCP25020-I/P can add configurable digital stimulus and status lines to an embedded CAN test fixture or measurement controller. Eight channels can represent pass/fail states, fixture interlocks, or discrete instrument-control signals, while PWM outputs may support simple excitation or indicator functions. The 2.75 V to 5.5 V supply range supports common laboratory embedded rails, but the complete fixture must define input thresholds, output loading, isolation, and fault behavior. Verify the 14-pin PDIP footprint and complete pinout against the manufacturer datasheet before fabrication.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای MCP25020-I/P — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | MCP25020-E/P | MCP25020T-E/SL |
|---|---|---|---|
| Package | 14-pin PDIP | 14-pin PDIP - same package | 14-pin PDIP - package confirmation required |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
تفاوت‌های کلیدی
- Eight-channel CAN-connected I/O integration (در مقابلMCP25020-I/SL)
- PWM capability without separate host GPIO allocation (در مقابلMCP25020-E/P)
- Broad common embedded supply range (در مقابلMCP25020T-E/SL)
یادداشت‌های طراحی
Do not assume that a related MCP25020 suffix is a drop-in replacement. MCP25020-E/P is the only directly related candidate in the supplied web comparison data, while MCP25020-I/SL is a 14-SOIC package and therefore changes the PCB footprint. Confirm the exact package, temperature grade, pin functions, and electrical limits in the manufacturer documentation before substituting a part.
Reserve the 14-pin PDIP footprint and route CAN, supply, ground, and I/O signals according to the complete manufacturer pinout. The verified data confirms the package but does not provide a complete pin table, so pin assignments must not be inferred from the DIP numbering convention alone. Keep the CAN transceiver and protection components close to the MCP25020-I/P and provide normal supply decoupling after checking the datasheet recommendations.
Design the I/O supply and external loads around the verified 25 mA output source and sink figures. Estimated: if a channel drives 10 mA continuously, the nominal output current is 40% of the 25 mA reference; this is an engineering check, not a manufacturer guarantee. Confirm duty cycle, voltage drop, thermal conditions, and whether the selected channel configuration permits the required load before finalizing the hardware.
Treat the CAN bus as a physical-layer design problem rather than only a software protocol choice. Use a compatible CAN transceiver, correct bus termination, controlled stub lengths, and an appropriate ground strategy. The MCP25020-I/P supports CAN V2.0B at rates up to 1 Mb/s, but bus reliability also depends on wiring, electromagnetic interference, clock configuration, and the host controller.
اطلاعات انطباق
The verified data does not provide RoHS, REACH, lead-free, halogen-free, conflict-minerals, or AEC-Q100 qualification information for MCP25020-I/P. Automotive suitability should not be inferred from the -40 °C lower operating-temperature value.