CAV24C64C4CTR

Memory IC Overview

The CAV24C64C4CTR is a 64-Kb (8192 x 8) serial EEPROM from onsemi, designed for automotive applications. It features an I2C interface supporting Standard (100 kHz) and Fast (400 kHz) protocols. The device operates within a supply voltage range of 1.8 V to 5.5 V and is qualified to AEC-Q100 Grade 1 standards for temperatures between -40°C and +125°C. It includes a 32-byte page write buffer, hardware write protection, and Schmitt triggers with noise suppression filters on bus inputs.

Memory IC Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for high-temperature reliability
• Integrated hardware write protection mechanism to secure memory data against unauthorized modifications
• Enhanced signal integrity through Schmitt triggers and noise suppression filters on I2C bus lines

Memory IC Applications

• Automotive electronic control units requiring non-volatile data storage
• Vehicle systems demanding high temperature stability and robustness
• Embedded applications utilizing I2C communication protocols

Memory IC Procurement Notes

Verify the specific ordering suffix C4CTR corresponds to the WLCSP-4 package configuration. Confirm that the 1.8 V minimum supply voltage requirement aligns with your system design, as this differs from standard variants. Ensure compatibility with AEC-Q100 Grade 1 environmental specifications before finalizing procurement decisions.

Memory IC Selection Notes

Select this component when automotive reliability and wide operating voltage ranges are critical. The C4CTR suffix indicates a wafer-level chip-scale package suitable for space-constrained designs. Consider the 1.8 V lower voltage limit compared to other series members if low-power operation is required.

Memory IC Part Context

This part belongs to the CAV24C64 family of serial EEPROMs optimized for automotive environments. It shares functional similarities with SOIC and TSSOP variants but utilizes a distinct WLCSP-4 package. The CAV prefix denotes automotive-grade products with strict site and change control requirements.

Memory IC Replacement Considerations

CAV24C64YE-GT3

Memory IC FAQ

What is the specific supply voltage range for the CAV24C64C4CTR variant?

The CAV24C64C4CTR supports a supply voltage range of 1.8 V to 5.5 V, which is wider at the lower end than the standard 2.5 V to 5.5 V range found in other package types.

How does the device handle write operations when the WP pin is active?

When the Write Protect (WP) pin is held HIGH, all write operations are inhibited. The state is strobed on the last falling edge of SCL preceding the first data byte, rejecting any write requests during that interval.