SDLS095A - OCTOBER 1976 - REVISED MARCH 1988 description Copyright 1988, Texas Instruments Incorporated !"# $ %& '# "$ (&)*%"# +"#', +&%#$ % ! # $('%%"#$ (' #-' #' !$ '."$ $# &!'#$ $#"+" + /" "#0, +&%# ( %'$$1 +'$ # '%'$$" *0 %*&+' #'$#1 "** (" "!'#' $, POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 1 SDLS095A - OCTOBER 1976 - REVISED MARCH 1988 2 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 SDLS095A - OCTOBER 1976 - REVISED MARCH 1988 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 3 SDLS095A - OCTOBER 1976 - REVISED MARCH 1988 4 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 SDLS095A - OCTOBER 1976 - REVISED MARCH 1988 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 5 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. 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Also see: Standard Terms and Conditions of Sale for Semiconductor Products. www.ti.com/sc/docs/stdterms.htm Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright 2001, Texas Instruments Incorporated Product Folder:SN54LS283, 4-Bit Binary Full Adders With Fast Carry All Semiconductors ____________________ PRODUCT FOLDER | PRODUCT INFO: FEATURES | DESCRIPTION | DATASHEETS | PRICING/AVAILABILITY | APPLICATION NOTES | RELATED DOCUMENTS PRODUCT SUPPORT: TRAINING SN54LS283, 4-Bit Binary Full Adders With Fast Carry DEVICE STATUS: ACTIVE PARAMETER NAME SN54LS283 SN74LS283 Voltage Nodes (V) 5 5 Vcc range (V) 4.5 to 5.5 4.75 to 5.25 Input Level TTL TTL Output Level TTL TTL Back to Top FEATURES Full-Carry Look-Ahead Across the Four Bits Systems Achieve Partial Look-Ahead Performance with the Economy of Ripple Carry Supply Voltage and Ground on Corner Pins to Simplify P-C Board Layout Back to Top DESCRIPTION The '283 and 'LS283 adders are electrically and functionally identical to the '83A and 'LS83A, respectively; only the arrangement of the terminals has been changed. The 'S283 high performance versions are also functionally identical. These improved full adders perform the addition of two 4-bit binary words. The sum ( ) outputs are provided for each bit and the resultant carry (C4) is obtained from the fourth bit. These adders feature full internal look-ahead across all four bits generating the carry term in ten nanoseconds, typically, for the '283 and 'LS283, and 7.5 nanoseconds for the 'S283. This capability provides the system designer with partial look-ahead performance at the economy and reduced package count of a ripple-carry implementation. The adder logic, including the carry, is implemented in its true form. End around carry can be accomplished without the need for logic or level inversion. Series 54, Series 54LS, and Series 54S circuits are characterized for operation over the full temperature range of -55C to 125C. Series 74, Series 74LS, and Series 74S circuits are characterized for 0C to 70C operation. Back to Top TECHNICAL DOCUMENTS To view the following documents, Acrobat Reader 4.0 is required. To download a document to your hard drive, right-click on the link and choose 'Save'. Back to Top DATASHEET Full datasheet in Acrobat PDF: sdls095a.pdf (292 KB) (Updated: 03/08/2001) Full datasheet in Zipped PostScript: sdls095a.psz (575 KB) Back to Top APPLICATION NOTES View Application Reports for Digital Logic Designing With Logic (SDYA009C - Updated: 06/01/1997) Designing with the SN54/74LS123 (SDLA006A - Input and Output Characteristics of Digital Integrated Circuits (SDYA010 - Live Insertion (SDYA012 - Updated: 03/01/1997) Updated: 10/01/1996) Updated: 10/01/1996) Back to Top RELATED DOCUMENTS Advanced Bus Interface Logic Selection Guide (SCYT126, 448 KB - Updated: 01/09/2001) Documentation Rules (SAP) And Ordering Information (SZZU001B, 13 KB - Logic Selection Guide First Half 2001 (SDYU001O, 4573 KB - Updated: 05/06/1999) Updated: 11/08/2000) file:///J|/imaging/BITTING/mail_pdf/2000/sn54ls283.html (1 of 2) [9/6/2001 11:15:11 AM] Product Folder:SN54LS283, 4-Bit Binary Full Adders With Fast Carry MicroStar Junior BGA Design Summary (SCET004, 167 KB - Updated: 07/28/2000) More Power In Less Space - Technical Article (SCAU001A, 850 KB - Overview of IEEE Std 91-1984, Explanation of Logic Symbols Training Booklet (SDYZ001A, 138 KB - Updated: 03/01/1996) ORDERABLE DEVICE PACKAGE PINS Updated: 07/01/1996) Back to Top PRICING/AVAILABILITY TEMP (C) STATUS BUDGETARY PRICE US$/UNIT QTY=1000+ PACK QTY DSCC NUMBER PRICING/AVAILABILITY 76043012A FK 20 -55 TO 125 ACTIVE 8.18 1 Check stock or order JM38510/31202B2A FK 20 -55 TO 125 ACTIVE 8.47 165 Check stock or order JM38510/31202BEA J 16 -55 TO 125 ACTIVE 2.53 1 Check stock or order JM38510/31202BFA W 16 -55 TO 125 ACTIVE 8.47 150 Check stock or order SN54LS283J J 16 -55 TO 125 ACTIVE 1.13 1 Check stock or order SNJ54LS283FK FK 20 -55 TO 125 ACTIVE 8.18 1 76043012A Check stock or order SNJ54LS283J J 16 -55 TO 125 ACTIVE 1.56 1 7604301EA Check stock or order SNJ54LS283W W 16 -55 TO 125 ACTIVE 8.18 1 7604301FA Check stock or order View Pricing/Availablity for:SN74LS283 Table Data Updated on: 7/15/2001 (c) Copyright 2001 Texas Instruments Incorporated. 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