11AA02E48-I/SN

Overview

The Microchip Technology 11AA02E48-I/SN is a 2 Kbit Serial Electrically Erasable PROM organized as 256 x 8-bit memory. It features a single I/O UNI/O serial interface bus with a maximum bit rate of 100 kbps. The device operates within a supply voltage range of 1.8V to 5.5V and supports industrial temperature ranges from -40°C to +85°C. It includes preprogrammed globally unique EUI-48 node addresses, Schmitt trigger inputs for noise suppression, and block write protection capabilities.

Feature Summary

• Supports the patented UNI/O single I/O serial interface protocol using Manchester encoding.
• Contains preprogrammed globally unique 48-bit Node Address compatible with EUI-48 standards.
• Includes built-in write protection via power-on/off data protection circuitry and configurable block write protection.
• Features output slope control to eliminate ground bounce and Schmitt trigger inputs for noise suppression.

Applications

• Microcontroller interfacing requiring single-wire communication
• Device identification and authentication systems
• Low-power embedded memory storage applications

Procurement Notes

Verify that the specific part number suffix matches the required package type and temperature grade. Confirm that the preprogrammed EUI-48 address aligns with system identification requirements. Ensure the design accommodates the UNI/O protocol timing constraints and voltage levels specified in the electrical characteristics table.

Selection Notes

Select this component when a single-wire serial interface is preferred over multi-wire protocols like I2C or SPI. It is suitable for applications requiring unique hardware identification without external components. Consider the 16-byte page write buffer size and the specific block protection options needed for data security.

Part Context

This device belongs to the 11AA02EXX family of 2K UNI/O Serial EEPROMs. It shares functional similarities with the 11AA02E64 model but differs in its preprogrammed node address length (48-bit vs. 64-bit). Both models utilize the same physical package options and interface protocols.

Replacement Considerations

The 11AA02E64 is a direct functional substitute within the same family, differing only in the length of the preprogrammed node address (EUI-64 vs. EUI-48). Other 11AA02 series variants may require interface adaptation if they do not support the UNI/O protocol.