N21C21A Datasheet | onsemi

1 Kb 1-Wire EPROM Add-Only Memory Description The N21C21A is a 1K- bit serial EPROM containing a factory- programmed, unique 48- bit identification number, 8- bit CRC generation, and the 8- bit family code (09h). A 64- bit status register controls write protection and page redirection. The N21C21A 1- wire interface requires only a single connection and a ground return. The DATA pin is also the sole power source for the N21C21A. The small surface- mount package options saves printed- circuit- board space, while the low cost makes it ideal for applications such as battery pack configuration parameters, record maintenance, asset tracking, product- revision status, and access- code security. Featu...