MCP25055-I/SL

I/o Expanders Overview

The MCP25055-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 four 10-bit analog input channels with programmable conversion clocks and voltage reference sources. 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 supply voltage range of 2.7V to 5.5V, drawing 10 mA typical active current and 30 µA in standby mode. It utilizes non-volatile memory for user configuration that loads automatically on power-up.

I/o Expanders Feature Summary

• Integrates digital I/O expansion with four-channel 10-bit analog-to-digital conversion capabilities.
• Supports automatic message transmission triggered by digital input edge detection or analog threshold exceedance.
• Includes hardware error management logic with fault confinement states and bus-off recovery sequences.
• Features non-volatile memory for pre-programmed default configurations loaded upon power-up.

I/o Expanders Applications

• CAN system nodes requiring integrated I/O expansion without microcontrollers
• Industrial monitoring systems utilizing analog input channels
• Automotive sensor interfaces with automatic state-change reporting

I/o Expanders Procurement Notes

Verify component authenticity through official Microchip channels or authorized distributors. Confirm the specific suffix matches the required package and temperature grade. Review the datasheet revision history for any updates regarding electrical characteristics or pinout definitions prior to finalizing procurement orders.

I/o Expanders Selection Notes

Select this component when a combined CAN protocol controller and I/O expander is required. Ensure the design accommodates the 14-pin SOIC package dimensions. Verify that the application requires the specific analog input count and PWM outputs provided by the MCP2505X variant rather than the digital-only MCP2502X series.

I/o Expanders Part Context

This device belongs to the MCP2502X/5X CAN I/O Expander Family manufactured by Microchip Technology. It serves as an alternative to traditional CAN controllers paired with separate I/O expanders, simplifying system architecture by integrating protocol handling and peripheral control into a single IC.

I/o Expanders Replacement Considerations

Microchip recommends using the MCP2515 or MCP25625 for new designs instead of this component. These newer devices offer updated features and support while maintaining compatibility with existing CAN protocols.