24LC64-E/SM

Memory IC Overview

The Microchip Technology 24LC64-E/SM is a 64-Kbit Electrically Erasable PROM (EEPROM) organized as an 8K x 8-bit memory block. It features a two-wire I2C compatible serial interface with a maximum clock frequency of 400 kHz for supply voltages between 2.5V and 5.5V. The device operates within a voltage range of 2.5V to 5.5V and supports an extended temperature range from -40°C to +125°C. Key electrical characteristics include a maximum active current of 3 mA, a standby current of 5 µA at extended temperatures, and a page write time of 5 ms maximum.

Memory IC Feature Summary

• Supports up to eight devices on the same bus using three hardware address pins
• Includes Schmitt trigger inputs for enhanced noise suppression
• Features output slope control to eliminate ground bounce
• Provides hardware write protection via the WP pin

Memory IC Applications

• Data logging in industrial environments requiring extended temperature stability
• Configuration storage for microcontroller systems
• Parameter retention in automotive electronic modules

Memory IC Procurement Notes

Verify that the ordering suffix 'SM' corresponds to the 8-lead MSOP package type. Confirm the 'E' suffix indicates the Extended temperature range (-40°C to +125°C). Ensure the specific revision of the datasheet DS20001189 is referenced for accurate electrical timing parameters during design validation.

Memory IC Selection Notes

Select this component when a 64-Kbit non-volatile memory solution is required with I2C connectivity. The 24LC64 variant specifically requires a minimum operating voltage of 2.5V, distinguishing it from the 24AA64 which supports operation down to 1.7V. The MSOP package offers a compact surface-mount footprint suitable for space-constrained designs.

Memory IC Part Context

This part belongs to the 24XX64 family of 64-Kbit I2C Serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24AA64 and 24FC64, which share similar functional architectures but differ in voltage ranges and clock speeds. The 24LC64 is optimized for standard 2.5V to 5.5V applications.

Memory IC Replacement Considerations

The 24LC64-I/SM serves as the Industrial temperature range equivalent. Cross-reference with 24AA64 or 24FC64 models only if voltage requirements or clock speed specifications align with the application needs.