1 Features

1• 1536 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

• 6KV IEC 61000-4-2 ESD Compliance on Data Pin

• No Standby Power Required

• Available in a 3-Pin SOT-23 and TO-92 Packages

2 Applications

• Security Encoding

• Inventory Tracking

• Product-Revision Maintenance

• Battery-Pack Identification

3 Description

The bq2026 is a 1.5K-bit serial EPROM containing a

factory-programmed, unique 48-bit identification

number, 8-bit family code, and a 64-bit status register.

The bq2026 SDQ™ interface requires only a single

connection and a ground return. The SDQ pin is also the sole power source for the bq2026.

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.