24AA64F-I/SN

Memory IC Overview

The Microchip Technology 24AA64F-I/SN is a 64 Kbit (8K x 8) Electrically Erasable PROM featuring a 2-Wire I2C compatible serial interface. It operates on a single supply voltage ranging from 1.7V to 5.5V with a maximum clock frequency of 400 kHz. The device utilizes Low-Power CMOS technology, drawing a maximum read current of 400 µA and standby current of 1 µA in the industrial temperature range (-40°C to +85°C). It includes hardware write-protect for the upper quarter of the array and supports page writes up to 32 bytes.

Memory IC Feature Summary

• Supports bidirectional 2-wire serial communication with I2C compatibility
• Includes Schmitt trigger inputs for enhanced noise suppression
• Features output slope control to eliminate ground bounce
• Provides hardware write protection for the upper quarter of the memory array

Memory IC Applications

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

Memory IC Procurement Notes

Verify that the ordering suffix matches the required package type and temperature grade. Confirm the specific revision level against the manufacturer's datasheet to ensure compatibility with existing designs. Check for any recent product change notifications regarding pinout or electrical characteristics before finalizing procurement orders.

Memory IC Selection Notes

Select this component when an I2C interface is required with operation down to 1.7V. Ensure the application does not exceed the 400 kHz clock limit at voltages below 2.5V. Consider the SOIC-8 package dimensions for PCB layout constraints. Verify that the hardware write-protect feature aligns with the system's security requirements.

Memory IC Part Context

This part belongs to the 24AA64F/24LC64F/24FC64F family of 64 Kbit EEPROMs. The 'I' designation indicates the Industrial temperature range (-40°C to +85°C), while '/SN' specifies the 8-Lead Small Outline Integrated Circuit (SOIC) package. It shares functional similarities with other members of the series but differs in voltage ranges and clock speeds depending on the specific model variant.

Memory IC Replacement Considerations

Direct substitutes within the same family include the 24AA64F-I/MY (MSOP package) or 24AA64F-I/ST (TSSOP package). Cross-family replacements like the 24LC64F require verification of the minimum operating voltage, as the LC variant typically requires a higher minimum supply than the AA series.