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BQ2022A

更新时间： 2024-10-28 04:34:39
品牌 Logo 应用领域
德州仪器 - TI 可编程只读存储器电动程控只读存储器
页数 文件大小 规格书
20页 297K
描述
1K-BIT SERIAL EPROM WITH SDQ INTERFACE

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中文翻译

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BQ2022A 数据手册

 浏览型号BQ2022A的Datasheet PDF文件第2页浏览型号BQ2022A的Datasheet PDF文件第3页浏览型号BQ2022A的Datasheet PDF文件第4页浏览型号BQ2022A的Datasheet PDF文件第5页浏览型号BQ2022A的Datasheet PDF文件第6页浏览型号BQ2022A的Datasheet PDF文件第7页 
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www.ti.com  
SLUS724–SEPTEMBER 2006  
1K-BIT SERIAL EPROM WITH SDQ INTERFACE  
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 bus  
architecture allows multiple SDQ devices to be  
connected to a single host.  
FEATURES  
•
1024 bits of One-Time Programmable (OTP)  
EPROM For Storage Of User-Programmable  
Configuration Data  
•
•
•
•
Factory-Programmed Unique 64-Bit  
Identification Number  
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.  
Bus-Interface Architecture Allowing Multiple  
bq2022As Attached to a Single Host  
Single-Wire Interface to Reduce Circuit Board  
Routing  
Synchronous Communication Reduces Host  
Interrupt Overhead  
ORDERING INFORMATION(1)  
PACKAGED DEVICES(3)  
•
•
No Standby Power Required  
(2)  
TA  
PART  
PACKAGE  
STATUS  
Available in a 3-Pin SOT23 Package and  
TO-92 Package  
NUMBER  
bq2022ADBZR  
bq2022ALPR  
SOT23-3  
TO-92  
–20°C to 70°C  
PREVIEW  
APPLICATIONS  
(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  
•
•
•
•
Security Encoding  
Inventory Tracking  
Product-Revision Maintenance  
Battery-Pack Identification  
(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 bq2022ADBZR and 2000 units for  
the bq2022ALPR.  
DESCRIPTION  
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.  
BLOCK DIAGRAM  
DBZ PACKAGE  
(TOP VIEW)  
SDQ  
VSS  
1
3
2
VSS  
ID ROM  
(64 bits)  
Internal  
Bus  
SDQ  
VSS  
1
2
SDQ Communications  
Controller and 8-Bit CRC  
Generation Circuit  
EPROM  
MEMORY  
(1024 bits)  
LP PACKAGE  
(BOTTOM VIEW)  
3
VSS  
EPROM  
STATUS  
(64 bits)  
RAM  
Buffer  
(8 bytes)  
VSS  
SDQ  
NC  
1
2
3
bq2022A  
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2006, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...20

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BQ2022A 替代型号

型号 品牌 替代类型 描述 数据表
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