24AA02H-I/P

Memory IC Overview

The Microchip Technology 24AA02H-I/P 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. The device includes hardware write protection for the upper half of the memory array (addresses 80h-FFh) via the WP pin and supports page writes of up to 8 bytes. It is housed in an 8-pin PDIP package and rated for industrial temperatures between -40°C and +85°C.

Memory IC Feature Summary

• Hardware write protection for the upper half of the memory array
• Schmitt trigger inputs for noise suppression
• Output slope control to eliminate ground bounce
• Self-timed erase/write cycle with acknowledge polling

Memory IC Applications

• Embedded systems requiring low-voltage non-volatile storage
• Industrial control devices operating in noisy environments
• Automotive applications requiring AEC-Q100 qualification

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'P' indicates the 8-lead PDIP package. Confirm the specific revision of the datasheet DS20002105B matches the production lot requirements. Ensure the application design accounts for the hardware write-protect functionality controlled by the WP pin state.

Memory IC Selection Notes

Select this component when a 2 Kbit capacity is required with a dedicated hardware write-protect feature for the upper memory half. It is suitable for designs needing operation down to 1.7V, distinguishing it from the 2.5V minimum 24LC02BH variant. The PDIP package is appropriate for through-hole prototyping or manufacturing where surface-mount options are not preferred.

Memory IC Part Context

This part belongs to the 24XX02H family of 2 Kbit serial EEPROMs. It shares functional similarities with the 24LC02BH but differs in its lower minimum operating voltage of 1.7V compared to 2.5V. The device utilizes a standard I²C protocol with a fixed client address code of 1010, where the block select bits are ignored.

Memory IC Replacement Considerations

The 24LC02BH is a compatible alternative within the same family, though it requires a minimum supply voltage of 2.5V rather than 1.7V.