24AA02/P

Memory IC Overview

The Microchip Technology 24AA02/P is a 2-Kbit (256 x 8) serial EEPROM housed in an 8-lead PDIP package. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports I²C communication with a maximum clock frequency of 400 kHz at voltages above 2.5V, or 100 kHz below that threshold. The device features a page write buffer for up to eight bytes, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. It is rated for industrial temperatures (-40°C to +85°C), offers over one million erase/write cycles, and retains data for more than 200 years.

Memory IC Feature Summary

• Supports bidirectional two-wire I²C compatible serial interface
• Includes hardware write-protect capability via dedicated pin
• Features internal address pointer for sequential read operations
• Provides Schmitt trigger inputs for enhanced noise immunity

Memory IC Applications

• Low-voltage embedded systems requiring non-volatile storage
• Industrial control devices operating within specified temperature ranges
• Applications necessitating hardware-level data protection
• Systems utilizing standard I²C bus protocols for memory access

Memory IC Procurement Notes

Verify the specific suffix 'P' corresponds to the 8-lead PDIP package type when sourcing. Confirm the voltage range requirements align with the 1.7V minimum specification for the 24AA02 variant. Ensure the application environment remains within the -40°C to +85°C industrial temperature limits. Check for RoHS compliance documentation if required by project specifications.

Memory IC Selection Notes

Select this component for designs requiring robust non-volatile memory with low power consumption. The 24AA02 is suitable for applications needing hardware write protection and reliable data retention. Consider the PDIP package only if through-hole mounting is necessary. Verify that the system's I²C bus speed does not exceed 400 kHz at the operating voltage.

Memory IC Part Context

This part belongs to the 24XX02 family of serial EEPROMs, which also includes the 24LC02B and 24FC02 variants. While sharing similar functional architectures, these models differ in minimum operating voltage and maximum clock frequency specifications. The 24AA02 specifically supports operation down to 1.7V, distinguishing it from the 2.5V minimum requirement of the 24LC02B.

Memory IC Replacement Considerations

The 24LC02B serves as a functional alternative but requires a minimum supply voltage of 2.5V compared to the 24AA02's 1.7V. The 24FC02 offers higher speed capabilities up to 1 MHz but may have different availability constraints. Package compatibility must be verified when substituting across different form factors.