Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

7489 ram in Quartus II

I am using the web edition of quartus 2 version 9.1. I would like to add a 7489 ram to a schematic I have been working on. I do not see this chip in the maxplus2 library, but there are a host of other 74 series chips. Where can I find a symbol for a 7489 RAM?

Thanks!

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    I'm afraid you will have to model this component in AHDL/VHDL/Verilog and provide a symbol yourself. Also, be aware that open-collector outputs are not supported internal to the FPGA.

    Best regards,

    Ben