24AA64-E/MS

Memory IC Overview

The Microchip Technology 24AA64-E/MS is a 64-Kbit Electrically Erasable PROM (EEPROM) organized as an 8K x 8-bit memory block. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports I2C compatible two-wire serial communication with a maximum clock frequency of 400 kHz. The device features a 32-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead MSOP package and supports extended temperature operation from -40°C to +125°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using three dedicated chip address pins.
• Includes hardware write protection that inhibits write operations when the WP pin is tied high.
• Features output slope control designed to eliminate ground bounce during switching.

Memory IC Applications

• Data logging systems requiring non-volatile storage
• Configuration parameter storage in embedded controllers
• Calibration data retention in industrial instrumentation

Memory IC Procurement Notes

Verify the specific suffix 'E' confirms the extended temperature range (-40°C to +125°C) and the 'MS' suffix indicates the 8-lead MSOP package. Confirm RoHS compliance status through official documentation prior to integration. Ensure the design accounts for the required pull-up resistors on SDA and SCL lines for proper I2C bus operation.

Memory IC Selection Notes

Select this component when low-voltage operation down to 1.7V is required alongside standard I2C compatibility. The extended temperature grade is suitable for harsh environments where industrial grades are insufficient. Consider the 32-byte page buffer efficiency for applications involving frequent small data updates.

Memory IC Part Context

This part belongs to the 24AA64 family of 64-Kbit I2C Serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 24FC64 and 24LC64 variants but differs in maximum clock speed and minimum operating voltage specifications. The device utilizes CMOS technology for low power consumption.

Memory IC Replacement Considerations

The 24AA64-I/MS serves as the industrial temperature variant of this component. Other packages within the same electrical specification include PDIP, SOIC, and TSSOP options.