1

DBZP

bq2024

ACKAGE

(TOP VIEW)

SDQ

VSS

VSS

2

3

IDROM

(64bits)

EPROM

MEMORY

(1536bits)

EPROM

STATUS

(64bits)

SDQCommunications

Controllerand8-BitCRC

GenerationCircuit

Internal

Bus

RAM

Buffer

(8bytes)

SDQ

1

2

VSS

3

VSS

NC

SDQ

VSS

1

2

3

LP PACKAGE

(BOTTOMVIEW)

(3,00 mm x 3,00 mm)

Actual Size

bq2024

www.ti.com

SLUS770 – MAY 2007

1.5K-BIT SERIAL EPROM WITH SDQ INTERFACE

Check for Samples: bq2024

1

FEATURES

DESCRIPTION

The bq2024 is a 1.5K-bit serial EPROM containing a

2

•

1536 Bits of One-Time Programmable (OTP)

factory-programmed,

unique

48-bit

identification

EPROM For Storage Of User-Programmable

number, 8-bit CRC generation, and the 8-bit family

Configuration Data

code (09h). A 64-bit status register controls write

•

Factory-Programmed Unique 64-Bit

protection and page redirection.

Identification Number

The bq2024 SDQ™ interface requires only a single

•

Bus-Interface Architecture Allowing Multiple

connection and a ground return. The DATA pin is

bq2024's Attached to a Single Host

also the sole power source for the bq2024. The bus

•

Single-Wire Interface to Reduce Circuit Board

architecture allows multiple SDQ devices to be

connected to a single host.

Routing

•

Synchronous Communication Reduces Host

The small surface-mount package options saves

Interrupt Overhead

printed-circuit-board space, while the low cost makes

it

ideal

for

applications

such

as

battery

pack

•

No Standby Power Required

configuration parameters, record maintenance, asset

•

Address Space Backward Compatible With

tracking, product-revision status, and access-code

bq2022A

security.

•

8-byte RAM Buffer for Faster Write

•

Page Address Redirection

•

15KV IEC 61000-4-2 Air Charge on SDQ

(2)

PART NUMBER

PACKAGE

STATUS

•

Available in a 3-Pin SOT23 Package and TO-92

–20°C to

bq2024DBZR

SOT23-3

Production

Package

70°C

bq2024LPR

TO-92

Preview

APPLICATIONS

(1)

For the most current package and ordering information, see

the Package Option Addendum at the end of this document,

•

Security Encoding

or see the TI Web site at www.ti.com.

•

Inventory Tracking

(2)

Device specified to communicate at –40°C to 85°C.

(3)

The device is available only in tape and reel with a base

•

Product-Revision Maintenance

quantity of 3000 units for the bq2024DBZR and 2000 units for

•

Battery-Pack Identification

the bq2024LPR.

BLOCK DIAGRAM

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

SDQ is a trademark of Texas Instruments.

UNLESS

OTHERWISE

NOTED

this

document

contains

Copyright © 2007, Texas Instruments Incorporated

PRODUCTION DATA information current as of publication date.

Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.