24AA02T-I/LT

Memory IC Overview

The Microchip Technology 24AA02T-I/LT is a 2-Kbit (256 x 8) serial EEPROM featuring an I²C-compatible two-wire interface. It operates on a single supply voltage ranging from 1.7V to 5.5V, with a maximum clock frequency of 400 kHz at voltages above 2.5V and 100 kHz below that threshold. The device supports page writes of up to 8 bytes with a maximum cycle time of 5 ms. It includes hardware write protection via the WP pin and offers data retention exceeding 200 years with over one million erase/write cycles.

Memory IC Feature Summary

• Low-power CMOS technology enabling operation down to 1.7V with minimal active and standby currents
• I²C compatible two-wire serial interface with Schmitt trigger inputs for noise suppression
• Hardware write-protect capability allowing inhibition of write operations when the WP pin is tied high
• Self-timed erase/write cycle with an 8-byte page write buffer for efficient data management

Memory IC Applications

• Data logging in industrial environments requiring non-volatile storage
• Configuration memory for embedded systems operating at low voltages
• Parameter storage in consumer electronics utilizing I²C buses

Memory IC Procurement Notes

Verify the specific package type corresponding to the LT suffix against official Microchip documentation before procurement. Confirm that the Industrial temperature range (-40°C to +85°C) aligns with your application requirements. Ensure voltage levels meet the 1.7V minimum operational threshold for proper functionality.

Memory IC Selection Notes

Select this component for applications requiring small capacity non-volatile memory with low power consumption. The 24AA02T-I/LT is suitable for designs needing hardware write protection and compatibility with standard I²C controllers. Consider the 400 kHz speed limit when designing for higher bus frequencies or lower supply voltages where speed may reduce to 100 kHz.

Memory IC Part Context

This part belongs to the 24XX02 family of 2-Kbit serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24LC02B and 24FC02, which differ primarily in voltage ranges and clock speeds. The 24AA02 variant specifically supports operation down to 1.7V, distinguishing it from parts requiring higher minimum voltages.

Memory IC Replacement Considerations

Direct substitutes within the same family include other 24AA02 packages such as 24AA02T-I/ST or 24AA02T-I/SN, provided the pinout and electrical characteristics remain identical. Verify package dimensions and marking codes when replacing surface-mount components.