MCZ33975AEKR2

Specialized Overview

The MCZ33975AEKR2 is a specialized interface integrated circuit manufactured by NXP USA Inc., designed for automotive applications. It operates within a supply voltage range of 5.5 V to 28 V and features an SPI serial interface for microprocessor communication. The device is housed in a 32-SSOP package with exposed pad (EP), also designated as 32-SOIC-EP, measuring 7.50 mm in width. It supports switch input voltages from -14 V to V PWR and includes programmable interrupt timers for sleep mode operations.

Specialized Feature Summary

• Supports detection of up to 22 switch contacts with open or closed status monitoring
• Operates in Normal mode for active programming and Sleep mode for low quiescent current consumption
• Interfaces with microprocessors using 3.3 V or 5.0 V SPI protocols

Specialized Applications

• Automotive body control modules requiring switch matrix interfacing
• Vehicle interior electronics monitoring door, window, and seat positions
• Systems utilizing wake-up functionality for power management

Specialized Procurement Notes

Verify component authenticity through authorized NXP distributors due to end-of-life status. Confirm RoHS3 compliance and moisture sensitivity level 3 handling requirements during storage and assembly. Check for obsolete status implications on long-term supply availability and lead times.

Specialized Selection Notes

Select this component when designing systems requiring robust switch monitoring with minimal standby power consumption. Ensure the application environment accommodates the specified operating temperature range and voltage levels. Verify compatibility with existing SPI bus configurations and microprocessor logic levels before integration.

Specialized Part Context

This part belongs to the MCZ33 series of specialty interface circuits developed for automotive body electronics. It complements other NXP solutions by providing dedicated switch scanning capabilities with integrated wake-up features, supporting modern vehicle architectures that demand efficient power management and reliable sensor input processing.

Specialized Replacement Considerations

The MC33975AEK is a related variant within the same family. Verify pinout compatibility and functional equivalence before substitution. Note differences in packaging and potential revisions between MCZ and MC33 prefixes.