24AA64F-I/MS

Memory IC Overview

The Microchip Technology 24AA64F-I/MS is a 64 Kbit Electrically Erasable PROM organized as an 8K x 8-bit memory block. It features a 2-wire I2C compatible serial interface and operates on a single supply voltage ranging from 1.7V to 5.5V. The device supports maximum clock frequencies of 400 kHz at VCC ≥ 2.5V and 100 kHz at VCC < 2.5V. It includes Schmitt trigger inputs, output slope control, and hardware write-protect for the upper quarter of the array (addresses 1800h-1FFFh). The component is housed in an 8-lead MSOP package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Hardware write-protect capability for the upper quarter of the memory array via the WP pin
• 32-byte page write buffer with self-timed erase/write cycles
• Schmitt trigger inputs and output slope control for noise suppression and ground bounce elimination

Memory IC Applications

• Personal communications devices requiring low-power data storage
• Data acquisition systems needing non-volatile parameter retention
• Embedded controllers utilizing I2C bus architecture

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the MSOP package type and Industrial temperature grade. Confirm RoHS compliance status and lead-free material specifications against current manufacturer documentation. Ensure the intended operating voltage aligns with the specified 1.7V to 5.5V range for proper functionality.

Memory IC Selection Notes

Select this component when a 64 Kbit EEPROM with I2C interface is required in a compact surface-mount form factor. The MSOP package offers space efficiency compared to larger packages. Consider the 1.7V minimum operating voltage for low-power battery applications. Verify that the 400 kHz maximum clock speed meets system timing requirements.

Memory IC Part Context

This part belongs to the 24AA64F/24LC64F/24FC64F family of 64 Kbit serial EEPROMs. While sharing core architecture, the 24AA64F variant specifically supports operation down to 1.7V, distinguishing it from the 24LC64F which requires a minimum of 2.5V. All variants utilize the same 2-wire serial protocol and physical pinout configurations.

Memory IC Replacement Considerations

Direct functional substitutes within the same package include other 24AA64F variants such as 24AA64F-I/SN or 24AA64F-I/ST, provided the package footprint matches. Cross-family replacements like 24LC64F require verification of the minimum supply voltage compatibility.