BQ2026 Datasheet, PDF (1/22 Pages) Texas Instruments – 1.5K-Bit Serial EPROM With SDQ Interface

www.ti.com
Actual Size
(3,00 mm x 3,00 mm)
1.5K-Bit Serial EPROM With SDQ Interface
Check for Samples: bq2026
bq2026
SLUS938 – DECEMBER 2011
FEATURES
1
•2 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 SOT23 Package and TO-92
Package
APPLICATIONS
• Security Encoding
• Inventory Tracking
• Product-Revision Maintenance
• Battery-Pack Identification
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.
ORDERING INFORMATION⁽¹⁾
T_A ⁽²⁾
PACKAGED DEVICES⁽³⁾
PART NUMBER PACKAGE
STATUS
bq2026DBZR
–20°C to 70°C _{bq2026LPR (4)}
SOT23-3
TO-92
Production
Production
(1) For the most current package and ordering information, see
the Package Option Addendum at the end of this document, or
see the TI Web site at www.ti.com
(2) Device specified to communicate at –40°C to 85°C
(3) The device is available only in tape and reel with a base
quantity of 3000 units for the bq2026DBZR and 2000 units for the
bq2026LPR.
(4) ROHS Compliant
spacer
BLOCK DIAGRAM
SDQ
VSS
SDQ Communications
Controller and CRC
Generation Circuit
Internal
Bus
RAM
Buffer
(1 byte)
ID ROM
(64 bits)
EPROM
MEMORY
(1536 bits)
EPROM
STATUS
(64 bits)
VSS
DBZ PACKAGE
(TOP VIEW)
SDQ
VSS
VSS
LP PACKAGE
(BOTTOM VIEW)
1 VSS
2 SDQ
3 VSS
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.
SDQ is a trademark of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated