1K-bit Serial EPROM with SDQ Interface

The BQ2022A is a 1-Kbit 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 BQ2022A SDQ™ interface

requires only a single connection and a ground return. The DATA pin is also the sole

power source for the BQ2022A.

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.