MCZ33903DS3EKR2

Specialized Overview

The MCZ33903DS3EKR2 is a System Basis Chip (SBC) from the MC33903 family, designed for advanced power management in automotive and industrial applications. It features an integrated high-speed CAN interface compliant with ISO11898-5, supporting baud rates from 40 kb/s to 1.0 Mb/s. The device includes one LIN 2.1 interface and provides a 3.3 V output regulator for MCU supply. It operates within a voltage range of 5.5 V to 28 V and functions across a temperature range of -40 °C to +125 °C. Packaged in a 32-pin SOIC with an exposed pad, it offers multiple wake-up sources and comprehensive diagnostic capabilities.

Specialized Feature Summary

• Integrated high-speed CAN physical interface with local and bus failure diagnostics
• Single LIN 2.1 interface with configurable master termination
• Low quiescent current consumption in low-power modes with multiple wake-up sources
• Advanced SPI-based monitoring and diagnostics for critical system pins

Specialized Applications

• Aircraft and marine systems
• Automotive and robotic systems
• Industrial actuator controls

Specialized Procurement Notes

Verify the specific ordering suffix EK/R2 confirms lead-free status and reel packaging configuration. Confirm the 'D' version designation aligns with current design recommendations over prior B or C versions due to resolved electrical parameter deviations. Ensure the single LIN interface variant matches the target network topology requirements.

Specialized Selection Notes

Select this part when a single LIN interface is required alongside high-speed CAN connectivity. The 3.3 V fixed output suits MCUs requiring that specific rail without external PNP extension. Verify footprint compatibility with other 33903/4/5 variants if pin flexibility is needed for future design iterations.

Specialized Part Context

This component belongs to the second-generation MC33903/4/5 SBC family. It shares pin compatibility with the MC33904 and MC33905 series, allowing for scalable module designs. The 'D' version represents the recommended design choice, incorporating quality improvements and resolving oscillator stability issues found in earlier revisions.

Specialized Replacement Considerations

MCZ33903DS5EKR2: Identical package and functionality but provides a 5.0 V VDD output instead of 3.3 V. MCZ33903D3EK/R2: Footprint compatible but lacks the LIN interface and auxiliary regulators present in the DS3 variant.