MCP25020-E/P - 8-Output 25MHz CAN I/O Expander | Microchip
N.º de pieza: MCP25020-E/P ✓ ActivoMCP25020-E/P Descripción general
A CAN I/O expander is an interface IC that adds configurable digital inputs, outputs, or pulse-width-modulated outputs to a CAN node. It extends a simple Controller Area Network node without requiring every output to be connected directly to a microcontroller. In the hierarchy, this device is a CAN interface controller with integrated digital I/O, a peripheral interface IC, and a semiconductor used in embedded control and industrial communication systems.
The MCP2502X/5X family provides up to eight digital I/O lines and up to two user-configurable PWM outputs. The verified family description also identifies one programmable mask, two programmable filters, three automatic transmit buffers, and two message-reception buffers. These resources support designs that periodically report input states or transmit predefined outputs without offloading every CAN frame to a host processor.
The 25 MHz device clock provides the timing reference for CAN operation, while programmable bit timing accommodates CAN bus rates up to 1 Mb/s. Its active CAN V2.0B implementation and configurable I/O make it suitable for distributed monitoring, actuator control, embedded industrial nodes, and simple remote I/O modules. The MCP25020-E/P package also uses a 2.54 mm pin pitch for conventional through-hole PCB assembly.
Designers should treat the complete manufacturer datasheet as authoritative for register definitions, pin multiplexing, electrical limits, oscillator configuration, transceiver-interface details, and reset behavior. The supplied search results establish the 14-DIP package, tube packaging, supply range, temperature entry, digital I/O count, CAN version, clock, and maximum bus rate, but do not provide enough verified information to populate a complete pin map or all timing values.
A practical design must account for the 4.5 V minimum operating supply and confirm that the associated CAN bus physical-layer implementation matches the module architecture. Programming should use the device-specific register map rather than treating the eight I/O positions as fixed GPIO. This page consolidates verified distributor availability, manufacturer family capabilities, package constraints, and engineering-selection guidance for faster procurement and design review.
Alternativas directas para MCP25020-E/P — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MCP25020-E/P (mismo factor de forma y huella) — difiere en Package, Mounting Type, Product Type, Supply Voltage Range, Automatic Transmit Buffers.
No hay alternativas directas disponibles para este producto.
Solicitar alternativasMCP25020-E/P Especificaciones
| Product Type | CAN I/O expander |
| Interfaz | Controller Area Network (CAN) |
| CAN Standard | CAN V2.0B active |
| Maximum CAN Bus Rate | 1 Mb/s |
| Clock Frequency | 25 MHz |
| Number of I/O | 8 |
| Number of PWM Outputs | Up to 2 |
| Programmable Masks | 1 |
| Programmable Filters | 2 |
| Automatic Transmit Buffers | 3 |
| Message Reception Buffers | 2 |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Temperatura de funcionamiento | -40 °C |
| Encapsulado | 14-DIP (0.300 inch, 7.62 mm) |
| Pin Pitch | 2.54 mm |
| Tipo de montaje | Through-hole |
| Packaging | Tube |
Guía de configuración de pines de MCP25020-E/P 14-dip (0.300 inch, 7.62 mm)
Configuración de pines para MCP25020-E/P (encapsulado 14-dip (0.300 inch, 7.62 mm)). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para MCP25020-E/P.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MCP25020-E/P es adecuado para 6 aplicacións: Industrial Remote I/O Module, Automotive Sensor and Actuator Gateway, Programmable Logic Controller Expansion, Building Access and Security Control, CAN-Connected Motor Control Interface, Instrumentation and Test Equipment.
Industrial Remote I/O Module
The MCP25020-E/P fits an industrial remote I/O module because its eight digital I/O resources and CAN V2.0B active support can carry distributed sensor states and actuator commands over one network. The 4.5 V to 5.5 V supply suits a 5 V node, while programming up to 1 Mb/s allows design options across factory networks. Two programmable filters and one mask can help organize received messages, and three automatic transmit buffers support repetitive status reporting. The 14-DIP through-hole package also suits repairable controller boards. Designers must assign pins according to the official register and multiplexing tables rather than assuming all eight positions are independent GPIO.
Recomendado
Automotive Sensor and Actuator Gateway
The MCP25020-E/P can serve as a CAN-connected gateway for discrete sensor inputs and low-duty actuator outputs when the system operates from 5 V and uses a through-hole controller layout. Its eight configurable I/O positions reduce wiring compared with a purely fixed CAN node, while the up-to-2 PWM outputs can support compatible loads after appropriate driver design. CAN operation up to 1 Mb/s supports faster network segments, but the designer must confirm network topology and transceiver characteristics. Automotive qualification is not established in the supplied evidence, so this use should proceed only after Microchip verifies environmental and automotive requirements for the exact part.
Recomendado
Programmable Logic Controller Expansion
The MCP25020-E/P is useful for expanding PLC or industrial-controller I/O without placing every discrete line directly on the main MCU. Eight digital I/O positions can be configured within the MCP2502X/5X architecture, and the three automatic transmit buffers can offload recurring CAN frames. One programmable mask and two programmable filters provide resources for selecting relevant traffic, while the 25 MHz clock supports programmable bit timing up to 1 Mb/s. In a slow control network, the maximum bus rate does not need to be used. Firmware must program each output, input, and PWM resource through the manufacturer-defined register map and include safe defaults at reset.
Recomendado
Building Access and Security Control
The MCP25020-E/P can extend a 5 V access-control node with inputs for door, request, tamper, and presence signals and outputs for indicators, locks, or relay drivers. Its CAN V2.0B interface allows status and commands to travel across a building network, while programmable filters can reduce irrelevant reception traffic. The eight-I/O capacity allows several discrete functions to share one peripheral. Designers should not drive locks directly without appropriate transistor, flyback, and isolation considerations. The verified 14-DIP package supports through-hole serviceable controllers, and the 4.5 V to 5.5 V range aligns with common 5 V logic, subject to regulator tolerance and transient requirements.
Recomendado
CAN-Connected Motor Control Interface
The MCP25020-E/P can provide a simple discrete control interface between a CAN network and a motor-support circuit when only a few control and status signals are required. Its up-to-two PWM outputs suit compatible low-frequency or auxiliary functions, while remaining I/O positions can monitor sensors and represent operating states. The CAN link can operate up to 1 Mb/s, and the two receive buffers support incoming commands or status messages. Actual motor-drive circuitry must provide suitable power stages, current limiting, flyback paths, and protection; the MCP25020-E/P is an I/O expander, not a complete motor-power controller. Firmware should enforce safe output states during reset and communication loss.
Recomendado
Instrumentation and Test Equipment
The MCP25020-E/P can extend compact laboratory or field-test equipment with a remote CAN-controlled I/O panel. Eight configurable positions can expose trigger, mode, acknowledge, limit, or interlock signals, and the three automatic transmit buffers can publish recurring telemetry. The 25 MHz clock and programmable CAN bit rate up to 1 Mb/s make the peripheral useful for deterministic laboratory buses as well as faster links. Its 4.5 V to 5.5 V analog-free digital supply range supports 5 V systems, but separate analog front ends still need their own filtering and grounding. The through-hole DIP package simplifies repairable prototypes and moderately serviced instruments, provided the controller board has adequate spacing.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MCP25020-E/P — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Brand | Microchip Technology |
| Package | 14-DIP (0.300 inch, 7.62 mm) |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Clock Frequency | 25 MHz |
| CAN Standard | CAN V2.0B active |
| Maximum CAN Bus Rate | 1 Mb/s |
| Number of Digital I/O | 8 |
| PWM Outputs | Up to 2 |
Notas de diseño
Design the controller board for the verified 4.5 V to 5.5 V MCP25020-E/P operating range, including regulator tolerance and transient margin. Place the device’s required decoupling capacitors at the pins identified in the manufacturer datasheet, with the shortest practical return to the ground reference. Because the supplied evidence does not include pin numbers or capacitor values, do not invent either detail; derive them from the official application and electrical-information sections before layout release.
Treat the 14-DIP as a through-hole mixed-signal interface: maintain the verified 2.54 mm pin pitch, provide adequate package clearance, and route high-current or switching-node wiring away from digital I/O and clock traces. The CAN physical-layer implementation and connection details are not present in the supplied excerpts, so PCB engineers must use the official pinout and recommended application layout rather than assigning CAN TXD, RXD, or other functions from memory.
Do not assume that eight I/O positions can all be used as ordinary GPIO at once. MCP2502X/5X devices provide up to eight digital I/O and up to two configurable PWM outputs, and the exact allocation depends on the device organization and programming model. Review the manufacturer register map, reset defaults, pin-multiplex options, masks, filters, and automatic transmit buffers before writing firmware or declaring board I/O.
The MCP25020 supports programmable CAN rates up to 1 Mb/s, but that figure does not guarantee usable communication without a correct physical layer, termination strategy, clock configuration, and bit timing. Validate timing margin at the intended bus rate and inspect reflections and common-mode behavior on the assembled PCB. The supplied data does not identify transceiver pins or oscillator requirements, so those details must be verified in the complete manufacturer documentation.
Información de cumplimiento
The supplied verified web data does not include exact-part compliance or qualification statements. No compliance claim is inferred.
