The bq2022 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 bq2022 SDQ interface (TI"s proprietary serial communications protocol) requires only a single connection and a ground return. The DATA pin is also the sole power source for the bq2022. The bus architecture allows multiple SDQ devices to be connected to a single host.
●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.
● 1024 bits of One-Time Programmable (OTP) EPROM For Storage Of User-Programmable Configuration Data
● Factory-Programmed Unique 64-Bit Identification Number
● Bus-Interface Architecture Allowing Multiple bq2022s Attached to a Single Host
● Single-Wire Interface to Reduce Circuit Board Routing
● Synchronous Communication Reduces Host Interrupt Overhead
● 15KV HBM ESD Compliance
● No Standby Power Required
● Available in a 3-Pin SOT23 Package and TO-92 Package
● APPLICATIONS
● Security Encoding
● Inventory Tracking
● Product-Revision Maintenance
● Battery-Pack Identification
●SDQ is a trademark of Texas Instruments.
