24AA025UIDT-I/SN

Memory IC Overview

The Microchip Technology 24AA025UIDT-I/SN is a 2 Kbit (256 x 8) serial EEPROM featuring a preprogrammed, unique 32-bit serial number. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports I²C™ compatible 2-wire serial interfaces with clock frequencies up to 400 kHz. The device utilizes low-power CMOS technology, drawing a maximum standby current of 1 µA and an active read current of 1 mA. It includes a 16-byte page write buffer, Schmitt trigger inputs for noise suppression, and output slope control to eliminate ground bounce. The component is housed in an 8-lead SOIC package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Factory-programmed 32-bit unique serial number permanently stored in the upper half of the memory array
• Low-voltage operation down to 1.7V with high endurance exceeding one million erase/write cycles
• Integrated 16-byte page write buffer for efficient data transfer operations
• Schmitt trigger inputs and output slope control designed to suppress noise spikes and prevent ground bounce

Memory IC Applications

• Device identification and authentication in embedded systems
• Asset tracking and inventory management using unique hardware IDs
• Configuration storage requiring non-volatile retention of system parameters
• Secure access control applications leveraging factory-set serial numbers

Memory IC Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape and reel packaging rather than tube packaging when sourcing this specific variant. Confirm the 'I' designation indicates the industrial temperature grade (-40°C to +85°C). Ensure the 'SN' suffix matches the 8-lead SOIC package type. Cross-reference the full part number against official Microchip documentation to confirm compatibility with required bus voltages and interface protocols before finalizing procurement.

Memory IC Selection Notes

Select this component when a unique hardware identifier is required alongside standard EEPROM functionality. The 24AA025UIDT-I/SN offers a larger page buffer compared to the 24AA02UID variant, facilitating faster sequential writes. It is suitable for designs operating at lower voltages starting from 1.7V. Consider the 8-lead SOIC package constraints regarding board space and pin availability for address selection if multiple devices are used on the same bus.

Memory IC Part Context

This device belongs to the Microchip 24AA02XUID family of 2 Kbit serial EEPROMs. It shares architectural similarities with the 24AA02UID but distinguishes itself through a 16-byte page buffer versus an 8-byte buffer. Both variants feature the same unique ID capability and electrical characteristics. The UID series integrates manufacturer codes and device identifiers alongside the user-accessible memory space.

Memory IC Replacement Considerations

The 24AA02UIDT-I/SN serves as a functional substitute where an 8-byte page buffer is sufficient. Other members of the 24AA02XUID family may be considered if package or buffer size requirements differ.