24AA025UID-I/P

Memory IC Overview

The Microchip Technology 24AA025UID-I/P is a 2 Kbit (256 x 8) serial electrically erasable programmable read-only memory (EEPROM). It features a preprogrammed 32-bit unique serial number stored in the upper half of the array, which is permanently write-protected. The device utilizes a 2-wire I²C compatible serial interface supporting clock frequencies up to 400 kHz. It operates on a single supply voltage ranging from 1.7V to 5.5V and includes Schmitt trigger inputs for noise suppression. The component is housed in an 8-lead PDIP package and supports industrial temperature ranges.

Memory IC Feature Summary

• Preprogrammed 32-bit unique serial number with permanent write protection
• I²C compatible 2-wire serial interface with Schmitt trigger inputs
• Low-power CMOS technology with standby current as low as 1 µA
• Page write capability with a 16-byte buffer

Memory IC Applications

• Device identification and authentication
• Anti-counterfeiting and security tracking
• Configuration storage in embedded systems

Memory IC Procurement Notes

Verify the specific suffix 'I/P' corresponds to the Industrial temperature range (-40°C to +85°C) and the 8-lead PDIP package type. Confirm that the UID family designation matches the required 32-bit serial number implementation. Ensure compatibility with the target system's I²C bus voltage levels within the 1.7V to 5.5V operating range.

Memory IC Selection Notes

Select this component when a fixed, factory-programmed hardware identifier is required for device uniqueness. The 24AA025UID variant offers a larger page write buffer compared to the 24AA02UID. Consider the PDIP package only if through-hole mounting is necessary for the mechanical design constraints.

Memory IC Part Context

This part belongs to the 24AA02XUID series of serial EEPROMs designed specifically for applications requiring unique device identification. Unlike standard EEPROMs, these devices integrate a non-volatile, unchangeable serial number directly into the silicon during manufacturing, eliminating the need for external identification components.

Memory IC Replacement Considerations

24AA02UID-I/P