DS2502+

The DS2502+ is a 1kB Add-only Memory with built-in multidrop controller ensures compatibility with other 1-Wire net products o presence pulse acknowledges when the reader first applies voltage. The 1kB add-only memory identifies and stores relevant information about the product to which it is associated. This lot- or product-specific information can be accessed with minimal interface-for example, a single port pin of a microcontroller. The DS2502 consists of a factory-lasered registration number that includes a unique 48-bit serial number, an 8-bit CRC and an 8-bit family code (09h) plus 1kB of EPROM which is user-programmable. The power to program and read the DS2502 is derived entirely from the 1-Wire® communication line.

• EPROM partitioned into four 256-bit pages for randomly accessing packetized data
• Each memory page can be permanently write-protected to prevent tampering
• 8-bit Family code specifies DS2502 communications requirements to reader
• Reduces control, address, data, power and programming signals to a single data pin
• Directly connects to a single port pin of a microprocessor and communicates at up to 16.3kbps
• Wide voltage and temperature operating ranges provide robust system performance

Applications

Industrial

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party