MCP25025T-I/SL

I/o Expanders Overview

The MCP25025T-I/SL is a CAN I/O expander from the MCP2502X/5X family, implementing CAN V2.0B with programmable bit rates up to 1 Mb/s. It features eight general-purpose I/O lines and supports optional 1-wire CAN bus operation. The device includes three auto-transmit buffers and two message reception buffers, along with one programmable mask and two programmable filters. Operating on low-power CMOS technology, it functions within a voltage range of 2.7V to 5.5V, drawing 10 mA typically in active mode and 30 µA in standby. It is housed in a 14-pin SOIC package and rated for industrial temperatures from -40°C to +85°C.

I/o Expanders Feature Summary

• Implements CAN V2.0B protocol with hardware-managed error states and automatic retransmission.
• Features non-volatile memory that automatically loads user configuration upon power-up.
• Supports individually selectable transmit-on-pin-change for digital inputs.
• Allows device configuration modification via CAN bus messages.

I/o Expanders Applications

• Implementation of simple CAN nodes without requiring a microcontroller.
• Industrial automation systems utilizing CAN communication.
• Automotive sensor networks requiring distributed I/O expansion.

I/o Expanders Procurement Notes

Verify the specific ordering suffix 'T' indicates tape and reel packaging when sourcing this component. Confirm the 'I' suffix corresponds to the industrial temperature range of -40°C to +85°C. Ensure compatibility with existing system voltage levels between 2.7V and 5.5V. Check for end-of-life status as the datasheet notes this family is not recommended for new designs.

I/o Expanders Selection Notes

Select the MCP25025 variant specifically if optional 1-wire CAN bus operation is required, distinguishing it from the MCP25020 which lacks this feature. Consider the MCP2505X series if analog input channels or PWM outputs are necessary for the application. Evaluate the need for standalone CAN node implementation versus using a dedicated controller paired with a transceiver.

I/o Expanders Part Context

This component belongs to the MCP2502X/5X CAN I/O Expander Family manufactured by Microchip Technology. The datasheet explicitly marks this family as Not Recommended for New Designs, suggesting the use of MCP2515 or MCP25625 for future projects. The part integrates CAN protocol handling with general-purpose I/O capabilities.

I/o Expanders Replacement Considerations

Public documentation recommends the MCP2515 or MCP25625 as replacements for this discontinued family. Verify pinout and register compatibility before substituting these controllers, as they lack the integrated I/O expander functionality of the MCP25025.