24LC64F-E/ST

Memory IC Overview

The Microchip Technology 24LC64F-E/ST is a 64-Kbit (8K x 8) serial EEPROM utilizing an I2C-compatible Two-Wire interface. It operates within a supply voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device features a 32-byte page write buffer, hardware write protection for the upper quarter of the array, and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead TSSOP package and rated for extended industrial temperatures from -40°C to +125°C.

Memory IC Feature Summary

• Hardware write protection 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 enhanced noise immunity

Memory IC Applications

• Data acquisition systems requiring non-volatile storage
• Personal communications devices
• Low-power embedded applications

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Extended temperature range (-40°C to +125°C) and 'ST' indicates the 8-TSSOP package. Confirm the specific revision level of the datasheet DS20002154C matches the production lot requirements. Ensure the application design accounts for the 2.5V minimum operating voltage specified for the 24LC64F series.

Memory IC Selection Notes

Select this component when a 64-Kbit capacity with I2C compatibility is required for industrial environments. The 24LC64F variant is distinct from the 24AA64F and 24FC64F due to its 2.5V minimum supply voltage and 400 kHz maximum clock frequency. The E suffix denotes the extended temperature grade necessary for high-thermal applications.

Memory IC Part Context

This part belongs to the 24XX64F family of 64-Kbit serial EEPROMs manufactured by Microchip Technology. The family includes variants optimized for different voltage ranges and clock speeds, such as the 24AA64F and 24FC64F. The 24LC64F specifically targets standard 2.5V to 5.5V logic systems.

Memory IC Replacement Considerations

Direct substitutes within the same package and electrical specifications include other 24LC64F variants with different temperature grades or suffixes, provided the voltage and speed requirements are met.