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CD74HCT670 Status: ACTIVE

High Speed CMOS Logic 4-by-4 Register File

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Datasheet

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  • CD54HC670, CD74HC670, CD74HCT670 (Rev. C) (cd74hct670.pdf, 568 KB)
    16 Oct 2003 Download

 CD74HCT670
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 Inventory

Customers Who Evaluated This Product Also Evaluated

  • SN74HC148: 8-Line To 3-Line Priority Encoders

    • Product Information

    Features

    • Simultaneous and Independent Read and Write Operations
    • Expandable to 512 Words of n-Bits
    • Three-State Outputs
    • Organized as 4 Words x 4 Bits Wide
    • Buffered Inputs
    • Typical Read Time = 16ns for ’HC670 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

    Description

    The ’HC670 and CD74HCT670 are 16-bit register files organized as 4 words x 4 bits each. Read and write address and enable inputs allow simultaneous writing into one location while reading another. Four data inputs are provided to store the 4-bit word. The write address inputs (WA0 and WA1) determine the location of the stored word in the register. When write enable (WE\) is low the word is entered into the address location and it remains transparent to the data. The outputs will reflect the true form of the input data. When (WE\) is high data and address inputs are inhibited. Data acquisition from the four registers is made possible by the read address inputs (RA1 and RA0). The addressed word appears at the output when the read enable (RE\) is low. The output is in the high impedance state when the (RE\) is high. Outputs can be tied together to increase the word capacity to 512 x 4 bits.

    		    

    Pricing / Packaging / CAD Design Tools / Samples

    PricePackagingCAD Design ToolsSamples
    DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierFootprintsSamples
    CD74HCT670EACTIVE-55 to 1254.62 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this FootprintPurchase Samples
    CD74HCT670EE4ACTIVE-55 to 1254.62 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this FootprintPurchase Samples
    CD74HCT670MACTIVE-55 to 1254.62 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this FootprintContact TI Distributor or Sales Office
    CD74HCT670M96ACTIVE-55 to 1254.62 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this FootprintPurchase Samples
    CD74HCT670M96E4ACTIVE-55 to 1254.62 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this FootprintPurchase Samples
    CD74HCT670M96G4ACTIVE-55 to 1254.62 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this FootprintPurchase Samples
    CD74HCT670ME4ACTIVE-55 to 1254.62 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this FootprintContact TI Distributor or Sales Office
    CD74HCT670MG4ACTIVE-55 to 1254.62 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this FootprintContact TI Distributor or Sales Office
    CD74HCT670MTACTIVE-55 to 1252.93 | 1kuSOIC (D) | 16 View 250 | SMALL T&R Download CAD Format for this FootprintPurchase Samples
    CD74HCT670MTE4ACTIVE-55 to 1252.93 | 1kuSOIC (D) | 16 View 250 | SMALL T&R Download CAD Format for this FootprintPurchase Samples
    CD74HCT670MTG4ACTIVE-55 to 1252.93 | 1kuSOIC (D) | 16 View 250 | SMALL T&R Download CAD Format for this FootprintPurchase Samples

    * 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
    CD74HCT670EAs of 10:05 AM GMT, 04 Dec 2008As of 10:05 AM GMT, 04 Dec 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     2550* >10k | 7 Jan 4 Weeks AmericasRochester Electronics >1k
    CD74HCT670EE4As of 10:05 AM GMT, 04 Dec 2008As of 10:05 AM GMT, 04 Dec 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     2550* >10k | 7 Jan 4 Weeks AmericasMouser Electronics 111
    CD74HCT670MAs of 10:05 AM GMT, 04 Dec 2008As of 10:05 AM GMT, 04 Dec 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     3400* >10k | 24 Dec 4 Weeks AmericasDigiKey 253
      Rochester Electronics >1k
    CD74HCT670M96As of 10:05 AM GMT, 04 Dec 2008As of 10:05 AM GMT, 04 Dec 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* >10k | 24 Dec 4 Weeks AmericasRochester Electronics >1k
    CD74HCT670M96E4As of 10:05 AM GMT, 04 Dec 2008As of 10:05 AM GMT, 04 Dec 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* >10k | 24 Dec 4 Weeks None Reported
    View Distributors    		   
    CD74HCT670M96G4As of 10:05 AM GMT, 04 Dec 2008As of 10:05 AM GMT, 04 Dec 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* >10k | 24 Dec 4 Weeks None Reported
    View Distributors    		   
    CD74HCT670ME4As of 10:05 AM GMT, 04 Dec 2008As of 10:05 AM GMT, 04 Dec 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     3400* >10k | 24 Dec 4 Weeks None Reported
    View Distributors    		   
    CD74HCT670MG4As of 10:05 AM GMT, 04 Dec 2008As of 10:05 AM GMT, 04 Dec 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     3400* >10k | 24 Dec 4 Weeks None Reported
    View Distributors    		   
    CD74HCT670MTAs of 10:05 AM GMT, 04 Dec 2008As of 10:05 AM GMT, 04 Dec 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* >10k | 24 Dec 4 Weeks AmericasRochester Electronics >1k
    CD74HCT670MTE4As of 10:05 AM GMT, 04 Dec 2008As of 10:05 AM GMT, 04 Dec 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* >10k | 24 Dec 4 Weeks None Reported
    View Distributors    		   
    CD74HCT670MTG4As of 10:05 AM GMT, 04 Dec 2008As of 10:05 AM GMT, 04 Dec 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* >10k | 24 Dec 4 Weeks None Reported
    View Distributors    		   
    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
    CD74HCT670E RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
    CD74HCT670EE4 RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
    CD74HCT670M RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    CD74HCT670M96 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    CD74HCT670M96E4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    CD74HCT670M96G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    CD74HCT670ME4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    CD74HCT670MG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    CD74HCT670MT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    CD74HCT670MTE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    CD74HCT670MTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

    * 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

    • CD54HC670, CD74HC670, CD74HCT670 (Rev. C) (cd74hct670.pdf, 568 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
    • 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
    • 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 Other Latches

    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
    • Logic Cross-Reference (Rev. A) (scyb017a.pdf, 2938 KB)
      07 Oct 2003 Download
     Complementary Products - Can be used with CD74HCT670
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