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SN74HCS125-Q1: could you please help provide the Pspice model for SN74HCS125?

Aki Li
Genius 9205 points
Part Number: SN74HCS125-Q1
Other Parts Discussed in Thread: SN74HCS125, TINA-TI, SN74LVC1G17

Customer was asking for the PSpice model of SN74HCS125-Q1 for the simulation. Could you please help provide that? Thank you.

  • 0
    Guru 286060 points

    You can use the model for the SN74HCS125, which has the same electrical characterics as far as the model is concerned.

  • 0 in reply to Clemens Ladisch
    TI__Genius 9205 points

    Clemens,

    The model downloaded was in .cir format. Could you please help share how to create the expected library file? Thank you.

  • 0 in reply to Aki Li
    Guru 286060 points

    In TINA-TI, "Tools / New Macro Wizard". Other software might have other mechanisms.

  • 0 in reply to Clemens Ladisch
    TI__Genius 9205 points

    Hi Clemens,

    Customer tried create the .lib and .olb files based .cir file, using Pspice, to create the library, but it failed to run the simulation. And the same steps worked for SN74LVC1G17. Highly appreciated with your further guidance here.

  • 0 in reply to Aki Li
    TI__Mastermind 44895 points

    Hey Aki,

    I've assigned this thread to our modeling expert to assist you, please allow them time to ramp up on the issue.

  • 0
    TI__Genius 16725 points

    Hi Aki,

    I have made some edits to the code to help get the .lib file. Can you please check if it works?

    SN74HCS125.lib

    Regards,

    Karan

  • 0 in reply to Karan Kotadia
    Prodigy 30 points

    Hello Karan,

    Actually I am the customer who posted this question to Aki. Thank you very much for sharing the .lib file

    I’ve created the olb file using the “Model Import Wizard” command in Model Editor. And I’ve placed the .lib and .olb into this path: C:\Cadence\SPB_16.5\tools\capture\library\pspice

    When I tried to add the library in Pspice, this error message appears：

    ERROR(ORCAP-1765): Unable to load the library.

    And I could not go further.

    Is it because I created the .olb wrongly, or there might be small problems in the file?

    Thanks again

     

    Regards

    XU Miao

  • 0 in reply to Miao XU
    TI__Guru* 96862 points

    Hi XU,

    I've asked our PSpice for TI team to take a look to see if they can help. It may take up to 24 hours for them to see this/respond.

  • 0 in reply to Miao XU
    TI__Genius 16725 points

    Hi Xu,

    I have run the spice file so it works fine for me. I have attached .OLB file that I created. There maybe something with PSPICE that is causing the trouble for you to use the device. It is a square shape but it should work. Just make sure to choose the new .lib file in the simulation

    SN74HCS125.OLB

    Regards,

    Karan

  • 0 in reply to Karan Kotadia
    Prodigy 30 points

    Hi Karan,

    Thank you for the .olb file. I've put the .olb file in the path C:\Cadence\SPB_16.5\tools\capture\library\pspice where I put all the library, and added the .lib file that you gave me last week in "Simulation Settings - Configuration files"  but that still can't work.

    The error message is 

    ERROR(ORPSIM-15108): Subcircuit LOGIC_INPUT_HC_1i_AND_Tristate_ST used by X_U1.XU1.XUA is undefined

    ERROR(ORPSIM-15108): Subcircuit LOGIC_INPUT_HC_1i_AND_Tristate_ST used by X_U1.XU1.XUB is undefined

    ERROR(ORPSIM-15108): Subcircuit LOGIC_INPUT_HC_1i_AND_Tristate_ST used by X_U1.XU1.XUOEZ is undefined

    ERROR(ORPSIM-15108): Subcircuit LOGIC_FUNCTION_2_HC_1i_AND_Tristate_ST used by X_U1.XU1.XUG is undefined

    ERROR(ORPSIM-15108): Subcircuit TPD_HC_1i_AND_Tristate_ST used by X_U1.XU1.XOUTPD is undefined

    ERROR(ORPSIM-15108): Subcircuit LOGIC_TRI_STATE_OUTPUT_HC_1i_AND_Tristate_ST used by X_U1.XU1.XUOUT is undefined

    ERROR(ORPSIM-15108): Subcircuit LOGIC_ICC_HC_1i_AND_Tristate_ST used by X_U1.XU1.XICC is undefined

    Is it possibe that we arrange a video meeting to find out the problem? 

    Regards 

    XU

  • 0 in reply to Miao XU
    TI__Mastermind 30745 points

    Hi Miao,

    How did you add the LIB file in simulation settings? Can you share a screenshot?

    Thanks,
    JC

  • 0 in reply to JC Zhu
    Prodigy 30 points

    Hi Zhu

    Here is the screenshot. I've tried both "Add to profile","Add to Design" and "Add as Global" but none of them work

    Thanks

    XU

  • 0 in reply to Miao XU
    TI__Mastermind 30745 points

    Xu,

    Since you have a simulation profile, you must have a schematic in which you've placed the symbol SN74HCS125 from SN74HCS125.OLB, correct? You don't need to place SN74HCS125.OLB  into C:\Cadence\SPB_16.5\tools\capture\library\pspice as that does nothing.

    I don't have 16.5 but I tried this in 17.2 (creating a schematic, placing a symbol, create a sim profile, adding the LIB file to design) and the simulation went on without a problem:

    Would you please archive your project and share it here?

    Thanks,
    JC