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CD54HC257 Status: ACTIVE

High Speed CMOS Logic Non-Inverting Quad 2-Input Multiplexer with 3-State Outputs

      Harris
         
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Datasheet

Download - PDF Icon
  • CD54HC257, CD74HC257, CD54HCT257, CD74HCT257 (Rev. D) (cd54hc257.pdf, 560 KB)
    16 Oct 2003 Download

 CD54HC257CD74HC257 
Voltage Nodes(V)6, 5, 2   
Technology FamilyHC  HC  
RatingMilitary  Catalog  
 SamplesSamples
 InventoryInventory

Other qualified versions of CD54HC257

Version Part Number Definition
Catalog CD74HC257 TI's standard catalog product

Product Information

Features

  • Buffered Inputs
  • Typical Propagation Delay (In to Output) = 12ns at VCC = 5V, CL = 15pF, TA = 25°C
  • Fanout (Over Temperature Range)
    • Standard Outputs...10 LSTTL Loads
    • Bus Driver Outputs...15 LSTTL Loads
  • Wide Operating Temperature Range...–55°C to 125°C
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • HC Types
    • 2V to 6V Operation
    • High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • HCT Types
    • 4.5V to 5.5V Operation
    • Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
    • CMOS Input Compatibility, Il 1µA at VOL, VOH

Data sheet acquired from Harris Semiconductor

Description

The ’HC257 and ’HCT257 are quad 2-input multiplexers which select four bits of data from two sources under the control of a common Select Input (S). The Output Enable input (OE\) is active LOW. When OE\ is HIGH, all of the outputs (1Y-4Y) are in the high impedance state regardless of all other input conditions.

Moving data from two groups of registers to four common output buses is a common use of the 257. The state of the Select input determines the particular register from which the data comes. It can also be used as a function generator.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierFootprintsSamples
CD54HC257F3AACTIVE-55 to 1253.72 | 1kuCDIP (J) | 16 1 | TUBE Download CAD Format for this FootprintContact TI Distributor or Sales Office

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

  TI Inventory Status Reported Distributor Inventory
CD54HC257F3AAs of 10:09 AM GMT, 04 Dec 2008As of 10:09 AM GMT, 04 Dec 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1155* 9984 | 28 Jan 8 Weeks AmericasAvnet 8
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
CD54HC257F3A  TBD A42 SNPB N/A for Pkg TypeViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Datasheets

  • CD54HC257, CD74HC257, CD54HCT257, CD74HCT257 (Rev. D) (cd54hc257.pdf, 560 KB)
    16 Oct 2003 Download

Application Notes

  • Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
    24 May 2004 Abstract
  • Understanding and Interpreting Standard-Logic Data Sheets (Rev. B) (szza036b.htm, 8 KB)
    28 May 2003 Abstract
  • TI IBIS File Creation, Validation, and Distribution Processes (szza034.htm, 9 KB)
    29 Aug 2002 Abstract
  • Selecting the Right Texas Instruments Signal Switch (szza030.htm, 8 KB)
    07 Sep 2001 Abstract
  • Implications of Slow or Floating CMOS Inputs (Rev. C) (scba004c.htm, 8 KB)
    01 Feb 1998 Abstract
  • CMOS Power Consumption and CPD Calculation (Rev. B) (scaa035b.htm, 9 KB)
    01 Jun 1997 Abstract
  • Designing With Logic (Rev. C) (sdya009c.htm, 8 KB)
    01 Jun 1997 Abstract
  • Live Insertion (sdya012.htm, 8 KB)
    01 Oct 1996 Abstract
  • Input and Output Characteristics of Digital Integrated Circuits (sdya010.htm, 9 KB)
    01 Oct 1996 Abstract
  • SN54/74HCT CMOS Logic Family Applications and Restrictions (scla011.htm, 8 KB)
    01 May 1996 Abstract
  • Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (scla008.htm, 8 KB)
    01 Apr 1996 Abstract

View Application Notes for Data Selectors/Multiplexers

User Guides

  • LOGIC Pocket Data Book (Rev. B) (scyd013b.pdf, 6001 KB)
    16 Jan 2007 Download
  • Signal Switch Data Book (Rev. A) (scdd003a.pdf, 18396 KB)
    14 Nov 2003 Download

More Literature

  • Logic Selection Guide 2007 (Rev. Z) (sdyu001z.pdf, 2862 KB)
    24 Apr 2007 Download
  • SN74HC4851/HC4852 Product Clip (Rev. B) (scyb019b.pdf, 501 KB)
    11 May 2004 Download
  • Logic Cross-Reference (Rev. A) (scyb017a.pdf, 2938 KB)
    07 Oct 2003 Download

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