The bq2022A 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 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.
Feature
- 1024 Bits of One-Time Programmable (OTP) EPROM For Storage Of User-Programmable Configuration Data
- Factory-Programmed Unique 64-Bit Identification Number
- Single-Wire Interface to Reduce Circuit Board Routing
- Synchronous Communication Reduces Host Interrupt Overhead
- 15KV IEC 61000-4-2 ESD Compliance on Data Pin
- No Standby Power Required
- Available in a 3-Pin SOT-23 Package and TO-92 Package
