MCP2021-330E/MD

Drivers, Receivers, Transceivers Overview

The MCP2021-330E/MD is a LIN transceiver from Microchip Technology designed for automotive and industrial applications. It provides a half-duplex, bidirectional physical interface compliant with LIN Bus Specifications 1.3 and 2.1, supporting baud rates up to 20 kBaud. The device features an integrated voltage regulator outputting 3.3V at 50 mA, protected against short circuits and thermal overload. It operates within a supply voltage range of 6.0V to 18.0V and withstands 43V load dump transients. The component supports extended temperature ranges from -40°C to +125°C and includes low-power modes with wake-up capabilities via the CS/LWAKE pin or LIN bus activity.

Drivers, Receivers, Transceivers Feature Summary

• Compliant with LIN Bus Specifications 1.3 and 2.1
• Integrated 3.3V voltage regulator with 50 mA output capability
• Supports baud rates up to 20 kBaud with slope-controlled edges
• Includes automatic thermal shutdown and short-circuit protection

Drivers, Receivers, Transceivers Applications

• Automotive Local Interconnect Network (LIN) systems
• Industrial serial bus networks requiring robust communication
• Master and slave node implementations in LIN topologies

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type associated with the 'MD' suffix by consulting the official datasheet, as standard listings often reference PDIP or SOIC variants. Confirm that the 3.3V regulator option matches the system power requirements. Ensure compatibility with the target microcontroller's UART interface and check for any required external components like filter capacitors for regulator stability.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a LIN-compliant transceiver with an integrated 3.3V power supply is required. It is suitable for designs needing protection against automotive electrical transients such as load dumps. Consider the MCP2021P variant if falling-edge wake-up sensitivity is preferred over dominant-level detection. Verify that the operating temperature range meets the environmental constraints of the final application.

Drivers, Receivers, Transceivers Part Context

This device belongs to the MCP2021/2/1P/2P family of LIN transceivers manufactured by Microchip Technology. The family shares core functionalities including LIN compliance and transient protection, but varies in package options, wake-up logic, and regulator output voltages. The MCP2021 specifically denotes the 8-pin version with a 3.3V regulator and dominant-level wake-up.

Drivers, Receivers, Transceivers Replacement Considerations

Direct replacements include other members of the MCP2021/2/1P/2P family, such as the MCP2021-500E/MD for a 5.0V regulator output. Cross-family alternatives may require verification of pinout compatibility and regulatory compliance.