SN74LS251NE4






 
 
  
 
 

 
 
 
SDLS085 − DECEMBER 1972 − REVISED MARCH 1988 Copyright  1988, Texas Instruments Incorporated   !"#$%&'#! ( )*$$+!' &( #" ,*-.)&'#! /&'+0 $#/*)'( )#!"#$% '# (,+)")&'#!( ,+$ '1+ '+$%( #" +2&( !('$*%+!'( ('&!/&$/ 3&$$&!'40 $#/*)'#! ,$#)+((!5 /#+( !#' !+)+((&$.4 !).*/+ '+('!5 #" &.. ,&$&%+'+$(0 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 





 
 
  
 
 

 
 
 
SDLS085 − DECEMBER 1972 − REVISED MARCH 1988 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 

  

 
 
 
SDLS085 − DECEMBER 1972 − REVISED MARCH 1988 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 

  

 
 
 
SDLS085 − DECEMBER 1972 − REVISED MARCH 1988 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 


 
 

 
 
 
SDLS085 − DECEMBER 1972 − REVISED MARCH 1988 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 


 
   

 
 
 
SDLS085 − DECEMBER 1972 − REVISED MARCH 1988 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 


 
 

 
 
 
SDLS085 − DECEMBER 1972 − REVISED MARCH 1988 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 


 
 

 
 
 
SDLS085 − DECEMBER 1972 − REVISED MARCH 1988 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PACKAGE OPTION ADDENDUM www.ti.com 2-Dec-2023 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) 7601601EA ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 7601601EA SNJ54LS251J Samples 7601601FA ACTIVE CFP W 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 7601601FA SNJ54LS251W Samples 7601601FA ACTIVE CFP W 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 7601601FA SNJ54LS251W Samples JM38510/30905BEA ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 30905BEA Samples JM38510/30905BEA ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 30905BEA Samples M38510/30905BEA ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 30905BEA Samples M38510/30905BEA ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 30905BEA Samples SN54LS251J ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SN54LS251J Samples SN54LS251J ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SN54LS251J Samples SN74LS251D LIFEBUY SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 LS251 SN74LS251D LIFEBUY SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 LS251 SN74LS251DR ACTIVE SOIC D 16 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 LS251 Samples SN74LS251DR ACTIVE SOIC D 16 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 LS251 Samples SN74LS251N ACTIVE PDIP N 16 25 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN74LS251N Samples SN74LS251N ACTIVE PDIP N 16 25 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN74LS251N Samples SN74LS251NE4 ACTIVE PDIP N 16 25 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN74LS251N Samples SN74LS251NE4 ACTIVE PDIP N 16 25 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN74LS251N Samples SN74LS251NSR ACTIVE SO NS 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 74LS251 Samples SN74LS251NSR ACTIVE SO NS 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 74LS251 Samples Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 2-Dec-2023 Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) SNJ54LS251FK ACTIVE LCCC FK 20 55 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SNJ54LS 251FK Samples SNJ54LS251FK ACTIVE LCCC FK 20 55 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SNJ54LS 251FK Samples SNJ54LS251J ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 7601601EA SNJ54LS251J Samples SNJ54LS251J ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 7601601EA SNJ54LS251J Samples SNJ54LS251W ACTIVE CFP W 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 7601601FA SNJ54LS251W Samples SNJ54LS251W ACTIVE CFP W 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 7601601FA SNJ54LS251W Samples (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) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of