SN74LS297N;SN74LS297NE4;中文规格书,Datasheet资料

Copyright © 1988, Texas Instruments Incorporated PRODUCTION DATA information is 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.

POST OFFICE BOX 655303 ? DALLAS, TEXAS 75265

http://www.77cn.com.cn/

2POST OFFICE BOX 655303 ? DALLAS, TEXAS 75265 http://www.77cn.com.cn/

3

POST OFFICE BOX 655303 ? DALLAS, TEXAS 75265

http://www.77cn.com.cn/

4POST OFFICE BOX 655303 ? DALLAS, TEXAS 75265 http://www.77cn.com.cn/

5

POST OFFICE BOX 655303 ? DALLAS, TEXAS 75265

http://www.77cn.com.cn/

6POST OFFICE BOX 655303 ? DALLAS, TEXAS 75265 http://www.77cn.com.cn/

PACKAGING INFORMATION

Orderable Device Status (1)Package Type Package Drawing

Pins Package Qty Eco Plan (2)

Lead/Ball Finish MSL Peak Temp (3)SN74LS297N ACTIVE PDIP N 1625Pb-Free (RoHS)CU NIPDAU N /A for Pkg Type SN74LS297NE4ACTIVE PDIP N 1625Pb-Free (RoHS)CU NIPDAU N /A for Pkg Type SN74LS297NE4

ACTIVE

PDIP

N

16

25

Pb-Free (RoHS)

CU NIPDAU

N /A for Pkg Type

(1)

The marketing status values are defined as follows:ACTIVE:Product device recommended for new designs.

LIFEBUY:TI has announced that the device will be discontinued,and a lifetime-buy period is in effect.

NRND:Not recommended for new designs.Device is in production to support existing customers,but TI does not recommend using this part in a new design.

PREVIEW:Device has been announced but is not in production.Samples may or may not be available.OBSOLETE:TI has discontinued the production of the device.

(2)

Eco Plan -The planned eco-friendly classification:Pb-Free (RoHS),Pb-Free (RoHS Exempt),or Green (RoHS &no Sb/Br)-please check http://www.77cn.com.cn/productcontent for the latest availability information and additional product content details.TBD:The Pb-Free/Green conversion plan has not been defined.

Pb-Free (RoHS):TI's terms "Lead-Free"or "Pb-Free"mean semiconductor products that are compatible with the current RoHS requirements for all 6substances,including the requirement that lead not exceed 0.1%by weight in homogeneous materials.Where designed to be soldered at high temperatures,TI Pb-Free products are suitable for use in specified lead-free processes.

Pb-Free (RoHS Exempt):This component has a RoHS exemption for either 1)lead-based flip-chip solder bumps used between the die and package,or 2)lead-based die adhesive used between the die and leadframe.The component is otherwise considered Pb-Free (RoHS compatible)as defined above.

Green (RoHS &no Sb/Br):TI defines "Green"to mean Pb-Free (RoHS compatible),and free of Bromine (Br)and Antimony (Sb)based flame retardants (Br or Sb do not exceed 0.1%by weight in homogeneous material)

(3)

MSL,Peak Temp.--The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications,and peak solder temperature.

Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.TI bases its knowledge and belief on information provided by third parties,and makes no representation or warranty as to the accuracy of such information.Efforts

are underway to better integrate information from third parties.TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.TI and TI suppliers consider certain information to be proprietary,and thus CAS numbers and other limited information may not be available for release.

In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s)at issue in this document sold by TI to Customer on an annual basis.

PACKAGE OPTION ADDENDUM

http://www.77cn.com.cn

18-Sep-2008

Addendum-Page 1

http://www.77cn.com.cn/

http://www.77cn.com.cn/

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries(TI)reserve the right to make corrections,modifications,enhancements,improvements, and other changes to its products and services at any time and to discontinue any product or service without notice.Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard

warranty.Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty.Except where mandated by government requirements,testing of all parameters of each product is not necessarily performed.

TI assumes no liability for applications assistance or customer product design.Customers are responsible for their products and

applications using TI components.To minimize the risks associated with customer products and applications,customers should provide adequate design and operating safeguards.

TI does not warrant or represent that any license,either express or implied,is granted under any TI patent right,copyright,mask work right, or other TI intellectual property right relating to any combination,machine,or process in which TI products or services are http://www.77cn.com.cnrmation published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a

warranty or endorsement http://www.77cn.com.cne of such information ma …… 此处隐藏：7612字，全部文档内容请下载后查看。喜欢就下载吧 ……