________________________________________________________________________________

MODEL:  std27.vhd                                                VERSION:    1.0
DESCRIPTION:  3-input positive-NOR gate                          DATE: 99 AUG 20
TIMING FILE:  std27.ftm                                          VERSION:    1.0
                                                                 DATE: 00 DEC 16
LOCATION:  http://www.FreeModelFoundry.com/fmf_models/std/std27.vhd
LOCATION:  http://www.FreeModelFoundry.com/fmf_models/std/std27.ftm

LIBRARY:  STND

GENERIC PART NUMBERS COVERED:  74ALS27, 74ALS27A, 74AS27, 74F27, 74HC27,
                               74HCT27, 74LS27, 74LV27, 74LVC27, 74VHC27

________________________________________________________________________________

SUPPORTED PART NUMBERS
    ____________________________________________________________________________

                   Fairchild Semiconductor 

    Part Number                       Data Source
    ____________________________________________________________________________

    DM74ALS27M                             1

    DM74ALS27N                             1

    DM74AS27M                              4

    DM74AS27N                              4

    74F27PC                                5

    74F27SC                                5

    74F27SJ                                5

    DM74LS27M                              11

    DM74LS27N                              11

    74VHC27M_3V3                           15

    74VHC27MTC_3V3                         15

    74VHC27N_3V3                           15

    74VHC27SJ_3V3                          15

    74VHC27M_5V                            15

    74VHC27MTC_5V                          15

    74VHC27N_5V                            15

    74VHC27SJ_5V                           15

    ____________________________________________________________________________

                   Philips Semiconductor   

    Part Number                       Data Source
    ____________________________________________________________________________

    74ALS27D                               2

    74ALS27N                               2

    N74F27D                                6

    N74F27N                                6

    74HC27D                                8

    74HC27DB                               8

    74HC27N                                8

    74HC27PW                               8

    74HCT27D                               10

    74HCT27DB                              10

    74HCT27N                               10

    74HCT27PW                              10

    74LV27D_3V3                            13

    74LV27DB_3V3                           13

    74LV27N_3V3                            13

    74LV27PW_3V3                           13

    74LV27D_5V                             13

    74LV27DB_5V                            13

    74LV27N_5V                             13

    74LV27PW_5V                            13

    74LVC27D                               14

    74LVC27DB                              14

    74LVC27PW                              14

    ____________________________________________________________________________

                   Texas Instruments       

    Part Number                       Data Source
    ____________________________________________________________________________

    SN74ALS27AD                            3

    SN74ALS27AN                            3

    SN74AS27D                              3

    SN74AS27N                              3

    SN74F27D                               7

    SN74F27N                               7

    SN74HC27D                              9

    SN74HC27N                              9

    SN74HC27NS                             9

    SN74LS27D                              12

    SN74LS27N                              12

    SN74LS27NS                             12


________________________________________________________________________________

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 DS006187 Revised February 2000

    2.   Philips Semiconductor 853-1162 01670 1991 Feb 08

    3.   Texas Instruments SDAS112B-Revised December 1994

    4.   Fairchild Semiconductor DS006278 Revised March 2000

    5.   Fairchild Semiconductor DS009539 Revised October 2000

    6.   Philips Semiconductor 853 0049 01638 February 5, 1991

    7.   Texas Instruments SDFS042A-Revised October 1993

    8.   Philips Semiconductor Product Specification December 1990

    9.   Texas Instruments SCLS088B-Revised May 1999

    10.  Philips Semiconductor Product Specification December 1990

    11.  Fairchild Semiconductor DS006359 Revised March 2000

    12.  Texas Instruments SDLS089-Revised March 1988

    13.  Philips Semiconductor 853-1896 19258 1998 Apr 20

    14.  Philips Semiconductor 853-2056 19309 1998 Apr 28

    15.  Fairchild Semiconductor DS011682 Revised April 1999