24AA64T-I/CS16K

Memory IC Overview

The Microchip Technology 24AA64T-I/CS16K is a 64-Kbit Electrically Erasable PROM (EEPROM) organized as an 8K x 8-bit memory block. It features a two-wire I2C compatible serial interface and operates on a single supply voltage ranging from 1.7V to 5.5V. The device supports clock frequencies of up to 400 kHz at voltages above 2.5V, with a maximum active current of 3 mA and standby current of 1 µA. It includes a 32-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. The component is housed in a 5-ball Chip Scale package.

Memory IC Feature Summary

• Supports bidirectional data transfer using a standard two-wire serial bus protocol with start and stop conditions.
• Includes a 32-byte page write buffer that allows multiple bytes to be written in a single operation before generating a stop condition.
• Features hardware write protection controlled by the WP pin to inhibit array writes while maintaining read access.

Memory IC Applications

• Data storage in industrial control systems requiring non-volatile memory
• Configuration parameter retention in embedded microcontroller applications
• Device identification and calibration data logging in sensor networks

Memory IC Procurement Notes

Verify the specific suffix 'CS16K' against official Microchip documentation to confirm package type and tape-and-reel specifications. Confirm the Industrial temperature range (-40°C to +85°C) matches system requirements. Check for RoHS compliance status and ensure the 5-ball CSP package footprint aligns with PCB design constraints.

Memory IC Selection Notes

Select this component when a low-voltage EEPROM with I2C compatibility is required for space-constrained designs. The 5-ball CSP package offers a compact solution compared to larger surface-mount options. Ensure the application can accommodate the 32-byte page write limitation and utilizes the hardware write-protect feature if data integrity during power fluctuations is critical.

Memory IC Part Context

This part belongs to the 24AA64 family of 64-Kbit serial EEPROMs manufactured by Microchip Technology. It shares functional characteristics with the 24FC64 and 24LC64 variants but is distinguished by its specific voltage range and speed capabilities. The 'I' designation indicates the Industrial temperature grade, while 'CS' denotes the Chip Scale packaging format.

Memory IC Replacement Considerations

Direct replacements within the same package and electrical specifications include other 24AA64 variants such as 24AA64T-I/MC or 24AA64T-I/ST, provided the package footprint is compatible. Cross-family substitutes like 24LC64 require verification of minimum operating voltage differences.