MCZ33904D5EKR2

Specialized Overview

The MCZ33904D5EKR2 is a System Basis Chip (SBC) from the NXP 33904 family, designed as an advanced power management unit for microcontrollers. It integrates an enhanced high-speed CAN interface compliant with ISO11898-2 and -5 standards, supporting baud rates from 40 kb/s to 1.0 Mb/s. The device features a main voltage regulator providing a selectable 5.0 V output for MCU supply, alongside a fully protected embedded 5.0 V regulator dedicated to the CAN driver. It includes an auxiliary SPI-configurable regulator, up to four wake-up input pins, and multiple undervoltage detection mechanisms. Operating within a temperature range of -40 °C to +125 °C, it utilizes SMARTMOS technology and is housed in a 32-pin SOIC package.

Specialized Feature Summary

• Integrates an enhanced high-speed CAN physical interface with local and bus failure diagnostics.
• Provides a configurable main voltage regulator for the MCU and a protected 5.0 V regulator for the CAN driver.
• Supports multiple low-power modes with extremely low quiescent current consumption.
• Includes an auxiliary SPI-configurable regulator for additional integrated circuits.

Specialized Applications

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

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout compatibility and feature set variations. Ensure that the selected variant matches the required voltage regulator configuration and package type for the target application design.

Specialized Selection Notes

Select this component when a system requires a combined power management solution with integrated high-speed CAN communication capabilities. The D5 suffix indicates a fixed 5.0 V output for the main regulator, suitable for standard 5V logic interfaces. Consider the 32-pin footprint for space-constrained designs requiring CAN connectivity without external transceivers.

Specialized Part Context

This device belongs to the second-generation 33903/4/5 SBC family. The 'MCZ' prefix denotes lead-free packaging. The 'D' version represents the recommended design for new applications, addressing previous errata related to SPI operation and oscillator stability found in earlier B and C versions.

Specialized Replacement Considerations

The MCZ33904D3EK/R2 serves as a direct replacement if a 3.3 V main regulator output is required instead of 5.0 V. Other family members like the MCZ33905 series offer additional LIN interfaces but require different pin configurations.

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, which can be selected via the SPI interface.

How does the device handle wake-up events in low-power modes?

The device supports multiple wake-up sources in LP modes, including CAN or LIN bus activity, I/O transitions, automatic timers, SPI messages, and VDD overcurrent detection.

Is the MCZ33904 compatible with LIN bus protocols?

No, the MCZ33904 variant specifically has zero LIN interfaces. Devices requiring LIN support are available in the MCZ33903 and MCZ33905 families.