MCZ33903DS3EK

Specialized Overview

The MCZ33903DS3EK is a System Basis Chip (SBC) from NXP Semiconductors, part of the MC33903 family. It integrates an enhanced high-speed CAN interface and a single LIN 2.1 interface with master termination capabilities. The device provides a 3.3 V voltage regulator for MCU supply and includes up to four wake-up input pins. It operates within a temperature range of -40 °C to +125 °C and utilizes SMARTMOS technology. The component is housed in a 32-pin SOIC package with an exposed pad.

Specialized Feature Summary

• Integrates an enhanced high-speed CAN interface compatible with ISO11898-5 standards.
• Includes a single LIN 2.1 interface with configurable master node termination.
• Features multiple low-power modes with extremely low quiescent current consumption.
• Provides advanced diagnostics including voltage, current, and temperature protection.

Specialized Applications

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

Specialized Procurement Notes

Verify the specific ordering suffix EK indicates lead-free packaging. Confirm the 'D' version designation aligns with current design recommendations over prior B or C versions due to resolved SPI deviations and quality improvements. Ensure compatibility with the required 3.3 V output specification for the target MCU application.

Specialized Selection Notes

Select this variant when a single LIN interface with master termination is required alongside a 3.3 V main regulator. The DS3EK suffix denotes the Single LIN, 3.3 V configuration in the 32-pin SOIC package. Consider the D version for new designs to ensure optimal oscillator stability and corrected SPI operation compared to older revisions.

Specialized Part Context

This component belongs to the second-generation MC33903/4/5 SBC family. It shares pin compatibility with other devices in the series, such as the MCZ33903D5EK and MCZ33904D3EK, facilitating versatile module design across different power and interface requirements within the same footprint.

Specialized Replacement Considerations

MCZ33903D5EK: Identical package and interfaces but provides a 5.0 V regulator instead of 3.3 V.

Specialized FAQ

What is the function of the MUX-OUT pin?

The MUX-OUT pin provides a multiplexed output for internal analog signal monitoring and power supply monitoring, selectable via the SPI interface.

How does the device handle fail-safe operations?

The device implements an advanced fail-safe state machine that asserts the SAFE pin LOW during fault events, such as software watchdog failures or undervoltage conditions.