24LC64T-E/SN

Memory IC Overview

The Microchip Technology 24LC64T-E/SN is a 64-Kbit (8K x 8) Electrically Erasable PROM (EEPROM) featuring an I2C-compatible two-wire serial interface. It operates within a supply voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device utilizes an 8-lead SOIC package and is rated for extended industrial temperatures from -40°C to +125°C. Key electrical characteristics include a maximum active current of 3 mA, standby current of 5 µA at extended temperatures, and a page write time of 5 ms.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using three functional address pins
• Includes hardware write protection via the WP pin to inhibit array writes
• Features Schmitt trigger inputs with noise suppression for signal integrity
• Provides output slope control to eliminate ground bounce during operation

Memory IC Applications

• Data logging in industrial environments requiring extended temperature stability
• Configuration storage for embedded systems utilizing I2C buses
• Parameter retention in consumer electronics operating at 2.5V or higher

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the required temperature grade and package type. Confirm the voltage range matches the application requirements, as this variant specifies a minimum of 2.5V. Ensure compatibility with the host controller's I2C pull-up resistor values for the target clock frequency.

Memory IC Selection Notes

Select this component when an I2C EEPROM requires operation above 2.5V with extended temperature capabilities. Compare against the 24AA64 if lower voltage support down to 1.7V is necessary. Consider the 24FC64 if high-speed mode up to 1 MHz is required. Verify that the 8-SOIC package dimensions fit the PCB layout constraints.

Memory IC Part Context

This part belongs to the 24LC64 family of 64-Kbit serial EEPROMs manufactured by Microchip Technology. The series includes variants with different voltage ranges, speed modes, and package options. The 'E' designation indicates the extended temperature range, while 'SN' identifies the 8-lead SOIC package format.

Memory IC Replacement Considerations

Direct substitutes within the same family include 24LC64-I/SN for industrial temperature range or 24LC64F-E/SN for RoHS compliance variations. Cross-family replacements like 24AA64T-E/SN offer wider voltage support but require verification of the minimum operating voltage.