MCP25020-I/SL

I/o Expanders Overview

The MCP25020-I/SL is a CAN I/O expander implementing the CAN V2.0B protocol with programmable bit rates up to 1 Mb/s. It features eight general-purpose I/O lines individually selectable as inputs or outputs, three auto-transmit buffers, and two message reception buffers. The device operates from 2.7V to 5.5V with typical active current of 10 mA and standby current of 30 µA in CAN Sleep mode. It includes non-volatile memory for user configuration that loads automatically on power-up. The component is housed in a 14-pin SOIC package and supports an industrial temperature range of -40°C to +85°C.

I/o Expanders Feature Summary

• Implements CAN V2.0B protocol with hardware acceptance filters and masks for flexible system design.
• Provides eight general-purpose I/O lines with individually selectable transmit-on-pin-change capability.
• Features non-volatile memory for automatic user configuration loading upon power-up.
• Supports low-power operation with dedicated CAN Sleep mode for reduced standby current.

I/o Expanders Applications

• Distributed control systems requiring remote I/O expansion via CAN bus.
• Industrial automation nodes managing digital input/output signals without microcontrollers.
• Automotive electronic subsystems utilizing CAN communication for sensor and actuator interfacing.

I/o Expanders Procurement Notes

Verify the specific ordering suffix 'I/SL' corresponds to the Industrial temperature range (-40°C to +85°C) and SOIC-14 package. Confirm the datasheet revision matches the required specifications. Ensure compatibility with existing CAN network configurations regarding voltage levels and termination requirements before finalizing procurement.

I/o Expanders Selection Notes

Select this component when a standalone CAN node with digital I/O expansion is required without a separate microcontroller. Note that the MCP2502X series lacks integrated analog-to-digital conversion; choose the MCP2505X variant if analog input channels are necessary. Consider the Not Recommended for New Designs status and evaluate modern alternatives like the MCP25625 for new projects.

I/o Expanders Part Context

The MCP25020-I/SL belongs to the MCP2502X/5X family of CAN I/O expanders manufactured by Microchip Technology. This family integrates CAN protocol handling with peripheral I/O management. The 'I' suffix denotes the industrial temperature grade, while '/SL' indicates the SOIC surface-mount package type within the broader product line.

I/o Expanders Replacement Considerations

Microchip recommends using the MCP2515 or MCP25625 instead of the MCP2502X series for new designs. Verify pinout compatibility and register mapping differences when substituting these modern equivalents into existing layouts.