MCP2515T-I/ST

Controllers Overview

The MCP2515T-I/ST is a stand-alone CAN controller implementing the CAN V2.0B specification, supporting data rates up to 1 Mb/s with 0-8 byte data fields. It interfaces via a high-speed SPI bus (10 MHz) and includes three transmit buffers with prioritization and abort features, plus two receive buffers. The device incorporates six 29-bit acceptance filters and two masks for message filtering. Operating on 2.7V to 5.5V power supplies, it draws 5 mA typically in active mode and 1 µA in sleep mode. The component supports industrial temperature ranges from -40°C to +85°C and is housed in a 20-pin TSSOP package.

Controllers Feature Summary

• Implements CAN V2.0B protocol with support for standard and extended data frames as well as remote frames.
• Features three transmit buffers with configurable priority levels and abort capabilities, alongside two receive buffers.
• Integrates six 29-bit acceptance filters and two masks to reduce host MCU overhead by filtering unwanted messages.
• Includes One-Shot mode for deterministic transmission attempts and a programmable Clock Out pin for external synchronization.

Controllers Applications

• Automotive electronic systems requiring CAN V2.0B compliance
• Industrial control networks and automation nodes
• Embedded sensor networks utilizing SPI-connected microcontrollers

Controllers Procurement Notes

Verify the specific suffix 'I/ST' against official Microchip documentation to confirm the industrial temperature range (-40°C to +85°C) and tape-and-reel packaging configuration. Ensure compatibility with the required SPI clock frequency and voltage levels before finalizing procurement orders.

Controllers Selection Notes

Select this component when a stand-alone CAN controller is needed to offload protocol processing from the main MCU. It is suitable for applications requiring hardware-based message filtering and prioritization. Ensure the design accommodates an external CAN transceiver, as the MCP2515 handles only the data link layer.

Controllers Part Context

The MCP2515 series serves as a stand-alone Controller Area Network interface, simplifying connections to CAN buses. It replaces complex software implementations of the CAN protocol stack within the host microcontroller. The device manages all arbitration, error handling, and frame formatting tasks internally.

Controllers Replacement Considerations

The MCP2515 is functionally compatible with the MCP2510 but offers enhanced performance including faster throughput and additional filtering capabilities. Verify pinout and register compatibility if migrating from older CAN controller variants.