MCP25050-I/P

I/o Expanders Overview

The MCP25050-I/P is a CAN I/O expander implementing the CAN V2.0B protocol with bus 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 VREF sources. The device includes three auto-transmit buffers, two message reception buffers, one programmable mask, and two programmable filters. Operating from 2.7V to 5.5V, it draws 10 mA typical active current and 30 µA in standby mode. Configuration is stored in non-volatile memory for automatic loading on power-up. It supports Industrial temperature range (-40°C to +85°C) and is housed in a 14-pin PDIP package.

I/o Expanders Feature Summary

• Implements CAN V2.0B protocol with programmable bit rate up to 1 Mb/s
• Includes four 10-bit analog input channels with programmable conversion clock and VREF sources
• Features eight general-purpose I/O lines individually selectable as inputs or outputs
• Contains non-volatile memory for user configuration that automatically loads on power-up

I/o Expanders Applications

• CAN system nodes without microcontrollers
• Digital input edge detection transmission
• Analog input threshold monitoring

I/o Expanders Procurement Notes

Verify datasheet revision DS20001664E matches component markings. Confirm ordering suffix -I/P corresponds to Industrial temperature range and PDIP-14 package. Check manufacturer documentation for end-of-life status as this family may be superseded by newer designs.

I/o Expanders Selection Notes

Select MCP25050 variant over MCP25020 when analog input capability is required. Ensure voltage supply aligns with 2.7V to 5.5V operating range. Verify package compatibility with PCB layout constraints for 14-pin PDIP form factor.

I/o Expanders Part Context

Part of the MCP2502X/5X family of CAN I/O expanders. Designed to simplify CAN node implementation by integrating protocol control and peripheral functions. Supersedes older discrete solutions by combining CAN controller and I/O expansion in a single IC.

I/o Expanders Replacement Considerations

Microchip recommends using MCP2515 or MCP25625 instead of this device for new designs.