24AA64X/ST

Memory IC Overview

The Microchip Technology 24AA64FT-I/ST is a 64-Kbit Electrically Erasable PROM organized as an 8K x 8-bit memory block. It features a two-wire I2C compatible serial interface with a maximum clock frequency of 400 kHz. The device operates on a single supply voltage ranging from 1.7 V to 5.5 V, drawing a maximum active current of 3 mA and a standby current of 1 µA. It utilizes TSSOP-8 surface mount packaging and supports an industrial temperature range from -40°C to +85°C.

Memory IC Feature Summary

• Hardware write-protect capability via the WP pin
• 32-byte page write buffer for efficient data transfer
• Schmitt trigger inputs for enhanced noise suppression
• Output slope control designed to eliminate ground bounce

Memory IC Applications

• Data logging in industrial monitoring systems
• Configuration storage for embedded controllers
• Parameter retention in battery-backed circuits
• Device identification and calibration data storage

Memory IC Procurement Notes

Verify the specific suffix 'FT' against official documentation to confirm reel packaging and quarter-array write-protect functionality. Ensure the Industrial temperature grade (I) matches system requirements. Confirm RoHS compliance status through the manufacturer's latest environmental declarations before finalizing procurement orders.

Memory IC Selection Notes

Select this component when low-voltage operation down to 1.7V is required alongside standard I2C compatibility. The TSSOP-8 package suits space-constrained surface-mount designs. Consider the hardware write-protect feature if physical protection against accidental overwrites is necessary for the application environment.

Memory IC Part Context

This part belongs to the 24AA64 family of 64-Kbit serial EEPROMs. It shares architectural similarities with the 24LC64 and 24FC64 variants but is distinguished by its 1.7V minimum operating voltage. The 'ST' suffix indicates the TSSOP-8 package type, while 'I' denotes the industrial temperature rating.

Memory IC Replacement Considerations

The 24AA64-I/ST serves as a direct functional substitute lacking the FT suffix features. The 24LC64T-I/ST offers similar capacity but requires a higher minimum voltage of 2.5V. Cross-reference datasheets to verify voltage tolerance and interface timing compatibility before substitution.