MCP25020T-E/SL

I/o Expanders Overview

The MCP25020T-E/SL is a CAN I/O expander IC implementing the CAN V2.0B protocol with programmable bit rates up to 1 Mb/s. It features eight general-purpose digital I/O lines and operates from a supply voltage of 2.7V to 5.5V, drawing a typical active current of 10 mA and 30 µA in standby mode. The device includes three auto-transmit buffers, two message reception buffers, one programmable mask, and two acceptance filters. It utilizes 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 error management logic and automatic bus recovery capabilities.
• Features non-volatile memory for persistent user configuration that loads automatically upon power-up.
• Provides eight individually selectable general-purpose digital I/O lines with transmit-on-change-of-state capability.
• Includes three prioritized transmit buffers and two separate receive buffers for efficient message handling.

I/o Expanders Applications

• Implementation of simple CAN nodes without requiring a microcontroller.
• Digital input edge detection triggering automatic message transmission.
• System monitoring via automatic transmission of error condition messages.

I/o Expanders Procurement Notes

Verify the specific suffix 'E' confirms the extended temperature rating of -40°C to +125°C as per official documentation. Confirm the 'T' suffix indicates tape and reel packaging. Ensure the base part number matches the MCP2502X family specifications before ordering.

I/o Expanders Selection Notes

Select this component when a standalone CAN node with integrated I/O expansion is required without a central processor. Consider the MCP2505X variant if analog-to-digital conversion or one-wire operation is needed. Verify compatibility with existing CAN bus baud rate configurations and voltage levels.

I/o Expanders Part Context

The MCP25020T-E/SL belongs to the MCP2502X/5X family of CAN I/O expanders designed by Microchip Technology. This family allows direct integration into CAN networks for peripheral control and data acquisition tasks.

I/o Expanders Replacement Considerations

Official documentation recommends using the MCP2515 or MCP25625 as replacements for new designs. These alternatives offer updated features and support while maintaining functional compatibility within CAN systems.