24AA02T-I/OT

Memory IC Overview

The Microchip Technology 24AA02T-I/OT 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 and supports clock frequencies up to 400 kHz at VCC ≥ 2.5V, or 100 kHz at VCC < 2.5V. The device utilizes a 5-lead SOT-23 surface-mount package and functions within an industrial temperature range of -40°C to +85°C. Key electrical characteristics include a maximum active read current of 1 mA and standby current of 1 µA.

Memory IC Feature Summary

• Hardware write-protect capability via the WP pin to inhibit memory writes when tied to VCC
• Integrated 8-byte page write buffer for efficient data transfer operations
• Schmitt trigger inputs with noise filtering to suppress bus spikes and ensure signal integrity

Memory IC Applications

• Non-volatile data storage in low-power embedded systems
• Configuration parameter retention in consumer electronics
• Device identification and calibration data logging in industrial controllers

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature grade (-40°C to +85°C). Confirm the 'T' suffix indicates tape-and-reel packaging suitable for automated assembly. Ensure the specific revision matches the required datasheet version DS20001709N for accurate timing parameters.

Memory IC Selection Notes

Select this component for applications requiring low-voltage operation down to 1.7V and compact SOT-23 footprint. It is suitable where hardware write protection is necessary to prevent accidental data corruption. Consider the 100 kHz speed limit if operating below 2.5V supply voltage.

Memory IC Part Context

This part belongs to the 24XX02 family, which includes the 24LC02B and 24FC02 variants. While sharing the same memory architecture and interface, the 24AA02 is distinguished by its 1.7V minimum operating voltage and 400 kHz maximum clock frequency specification.

Memory IC Replacement Considerations

The 24AA02T-E/OT serves as the extended temperature variant (-40°C to +125°C). Other compatible parts within the family include the 24LC02B and 24FC02, though they differ in minimum voltage requirements and maximum clock speeds.