Microchip announces a family of serial EEPROM devices that incorporate a pre-programmed unique 32-bit serial number for customers who require unique identifications in their applications. For applications that need IDs larger than 32 bits, this can be extended to 48, 64, 96, 128 bit, and other lengths by increasing the number of bytes read from memory. Since the 32-bit ID is unique across these devices, any longer bit sequence is also unique. These 2 Kb serial EEPROM devices are supplied on standard buses as I2C™, SPI and Microwire, and integrate up to 1,5 Kb of memory that can be used as standard EEPROM. In addition, Microchip has announced a uniquely identifiable 256 Kb device for I2C which, along with the 32-bit serial number, also contains the IEEE EUI-48 MAC addresses™ and IEEE EUI-64™. These IDs reside in a write-protected area of memory, giving users up to 224Kb of EEPROM to use in their applications. Microchip ensures that this 32-bit ID is unique across the 24AA02UID, 24AA025UID, 11AA02UID, 25AA02UID, and 24AA256UID family of uniquely identified EEPROM devices.
Microchip has also added EUI-48 MAC address catalog to its™ a new family with EUI-64 MAC addresses™ preprogrammed. These 2 Kb EEPROM devices are supplied on I buses.2C, SPI and UNI/O®, which offer easy and inexpensive access to MAC addresses and incorporate up to 1,5Kb of EEPROM that can be used to store configuration settings or as a staging area for buffering small amounts of data. Serial EEPROM Devices 24AA02E64, 24AA025E64, 11AA02E64 y 25AA02E64 They incorporate a 64-bit Extended Unique Identifier (EUI) that is needed to identify the physical address of the network hardware. These built-in MAC addresses allow designers to obtain addresses only when needed and also eliminate the need for serialization and programming.
…./…
EUI-64 network applications for the new EEPROMs are best suited for those including Ethernet, Wi-Fi®, Bluetooth®, FireWire, ZigBee® and the MiWi protocol™ from Microchip. These devices excel in a wide variety of applications, including within the consumer sector such as wireless radios and printers, Bluetooth headsets, LCD TVs, and Internet-enabled home devices, and in the industrial market such as Ethernet, USB, and industrial automation. . Applications for the new unique identification devices include consumer, medical, industrial, automotive, and network markets. Some examples of end applications that are ideal are printers, portable devices, remote sensor modules, audio headsets, medical device authentication and identification, wireless products, and battery-powered products.
Unique ID devices offer customers an easy-to-use, low-cost plug & play solution to add a serial number or unique ID to an application.
Microchip uniquely identifiable EEPROM devices are supported by the MPLAB Starter Kit® for Serial Memory Products (DV243003), priced at $79,98, which is available now.
The 24AA02UID and 24AA025UID devices are already supplied for sampling in 23/5-pin SOT-6 and 8-pin SOIC and PDIP packages, while the 24AA0256UID is supplied in 8-pin SOIC, TSSOP and PDIP packages. Volume production of these devices is planned for August.
The 25AA02UID is now available for sampling and volume production in SOIC packages of
8-pin and SOT-23 6-pin. The 11AA02UID is now available for sampling and volume production in 23-pin SOT-3 and 8-pin SOIC packages. The 24AA02E64 and 24AA025E64 are now available for sampling and volume production in 8-pin SOIC and 23/5-pin SOT-6 packages. The 25AA02E64 is now available for sampling and volume production in 8-pin SOIC and 23-pin SOT-6 packages. The 11AA02E64 is now available for sampling and volume production in 8-pin SOIC and 23-pin SOT-3 packages.
For more information, visit the Microchip website at http://www.microchip.com/get/TK4D
