24AA64T-I/MS

Memory IC Overview

The Microchip Technology 24AA64T-I/MS 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 up to 400 kHz, with compatibility down to 100 kHz at lower voltages. It includes hardware write protection via the WP pin, Schmitt trigger inputs for noise suppression, and output slope control. The component is housed in an 8-lead MSOP package.

Memory IC Feature Summary

• Supports cascading of up to eight devices on the same bus using functional address pins A0, A1, and A2.
• Includes a 32-byte page write buffer to facilitate efficient data writing operations.
• Features hardware write protection controlled by the WP pin to prevent unauthorized array modifications.

Memory IC Applications

• Personal communications systems requiring low-power non-volatile storage
• Data acquisition applications needing reliable parameter retention
• Industrial control systems utilizing I2C bus architectures

Memory IC Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging rather than tube packaging when sourcing this specific variant. Confirm the 'I' designation indicates industrial temperature range compliance (-40°C to +85°C). Ensure the MSOP package dimensions match your PCB footprint requirements before finalizing procurement.

Memory IC Selection Notes

Select this part for designs requiring low standby current and operation down to 1.7V. The 24AA64 series is suitable where hardware write protection is necessary. Consider the 24LC64 if the minimum operating voltage requirement is strictly 2.5V or higher, or the 24FC64 if 1 MHz clock speeds are required.

Memory IC Part Context

This component belongs to the 24XX64 family of 64-Kbit I2C Serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24AA64, 24LC64, and 24FC64, which share similar memory organization and interface protocols but differ in voltage ranges and maximum clock frequencies.

Memory IC Replacement Considerations

Direct replacements within the same package include other 24AA64 variants with different suffixes indicating package type or temperature grade. Cross-family replacements like the 24LC64 or 24FC64 require verification of voltage and speed compatibility.