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MODEL:  std40.vhd                                                VERSION:    1.0
DESCRIPTION:  4-input positive-NAND gate                         DATE: 00 JUL 03
TIMING FILE:  std40.ftm                                          VERSION:    1.0
                                                                 DATE: 01 JAN 03
LOCATION:  http://www.FreeModelFoundry.com/fmf_models/std/std40.vhd
LOCATION:  http://www.FreeModelFoundry.com/fmf_models/std/std40.ftm

LIBRARY:  STND

GENERIC PART NUMBERS COVERED:  7440, 74LS40, 74S40

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SUPPORTED PART NUMBERS
    ____________________________________________________________________________

                   Fairchild Semiconductor 

    Part Number                       Data Source
    ____________________________________________________________________________

    DM74S40N                               1

    ____________________________________________________________________________

                   Texas Instruments       

    Part Number                       Data Source
    ____________________________________________________________________________

    SN7440N                                2

    SN74LS40D                              2

    SN74LS40N                              2

    SN74S40D                               2

    SN74S40N                               2


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DATA SOURCES

    These are the primary sources of data used in determining behaviour and 
    timing of the components represented by this model.

    1.   Fairchild Semiconductor DS006453 Revised April 2000

    2.   Texas Instruments SDLS108-Revised March 1988