24AA64FT-I/SN

Memory IC Overview

The Microchip Technology 24AA64FT-I/SN is a 64 Kbit (8K x 8) serial EEPROM utilizing an I²C-compatible 2-wire interface. It operates on a single supply voltage ranging from 1.7V to 5.5V, with a maximum clock frequency of 400 kHz at VCC ≥ 2.5V and 100 kHz at lower voltages. The device features a 32-byte page write buffer, hardware write-protect for the upper quarter of the array (addresses 1800h-1FFFh), and Schmitt trigger inputs for noise suppression. It supports industrial temperature ranges (-40°C to +85°C) and is housed in an 8-pin SOIC package.

Memory IC Feature Summary

• Hardware write-protect capability for the upper quarter of the memory array
• 32-byte page write buffer for efficient data transfer
• Schmitt trigger inputs designed for improved noise spike suppression
• Output slope control implemented to eliminate ground bounce

Memory IC Applications

• Personal communications devices requiring low-power non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Embedded controllers managing configuration settings via I²C bus

Memory IC Procurement Notes

Verify the specific suffix 'I/SN' corresponds to the Industrial temperature grade and 8-Lead SOIC package. Confirm that the 'F' designation indicates the inclusion of the quarter-array write-protect feature. Ensure compatibility with the target system's I²C voltage levels and pull-up requirements before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a 64 Kbit capacity is required alongside hardware-level protection for critical address ranges. It is suitable for designs operating between 1.7V and 5.5V where low standby current is essential. Consider the 8-pin SOIC form factor for surface-mount assembly constraints and verify that the 400 kHz speed meets the bus timing requirements of the host controller.

Memory IC Part Context

This part belongs to the 24XX64F family of serial EEPROMs, which share identical memory architecture and electrical characteristics. The 'AA' prefix denotes operation down to 1.7V, distinguishing it from the 24LC64F series which requires a minimum of 2.5V. The 'SN' suffix specifically identifies the 8-lead Small Outline Integrated Circuit (SOIC) package type used in this variant.

Memory IC Replacement Considerations

Direct functional substitutes within the same family include 24AA64F-I/SN. Other packages such as TSSOP or MSOP may serve as physical alternatives if pinout compatibility is maintained.