24LC64F-I/SN

Memory IC Overview

The Microchip Technology 24LC64F-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 2.5V to 5.5V with a maximum clock frequency of 400 kHz and a typical access time of 900 ns. The device features a 32-byte page write buffer, self-timed erase/write cycles of 5 ms, and hardware write protection for the upper quarter of the array. It supports industrial temperature ranges (-40°C to +85°C) and offers high endurance exceeding one million write cycles.

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 enabling efficient data transfer with automatic address incrementing
• Schmitt trigger inputs and output slope control for noise suppression and ground bounce elimination
• Supports up to eight devices on the same bus using three functional address pins

Memory IC Applications

• Personal communications equipment requiring low-power non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Industrial power management units storing configuration data
• Communication and network infrastructure components

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'SN' indicates the 8-lead SOIC package. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure the specific revision of the datasheet DS22154B matches the production batch requirements for electrical characteristics.

Memory IC Selection Notes

Select this component when a 64 Kbit capacity with I²C interface is required within the 2.5V to 5.5V voltage domain. It is suitable for designs needing hardware write protection for critical data segments. Compare against 24AA64F or 24FC64F variants if lower voltage operation (1.7V) or higher speed (1 MHz) is necessary instead.

Memory IC Part Context

This part belongs to the 24XX64F family of serial EEPROMs from Microchip Technology. It shares architectural similarities with the 24AA64F and 24FC64F but is distinguished by its minimum operating voltage of 2.5V and 400 kHz clock limit. The family provides a standardized solution for small-scale non-volatile memory applications across various packaging options including SOIC, TSSOP, and MSOP.

Memory IC Replacement Considerations

Direct substitutes include other 24LC64F variants with different packages such as 24LC64F-I/ST (TSSOP) or 24LC64F-I/MS (MSOP). Cross-family replacements like 24AA64F-I/SN offer compatibility but support lower voltages down to 1.7V.