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  1. #1
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    Programmable Logic Devices nowadays

    Dear all,

    I haven't used PLDs for about 10 years; I need to implement a logic circuit with four inputs, three outputs and a straightforward boolean expression in the middle (let's say a combination of XOR, AND, inverters, etc.). My requirements are:

    • Not discrete gates to be used
    • Descriptive hardware-programmable logic based (i.e. not microcontroller).
    • Operation voltage preferably to be 9V (to avoid additional LDOs, etc.)
    • In-circuit programming is preferable (but not compulsory).

    The questions are:

    Are the SPLDs that I used to use (e.g. :16V8) still relevant nowadays?
    Is there anything more recommendable?
    How can I program it via JTAG? Can you show me a circuit diagram?
    Can you please recommend the software to program, compile, simulate, debug, etc.?
    Can SPLDs or CPLDs deal with time conditions?

    Thank you very much!!

    •   Alt4th March 2018, 19:20

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  2. #2
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    Re: Programmable Logic Devices nowadays

    There are still a few 5V CPLD on the market. ATF1502 has JTAG programming.



    •   Alt4th March 2018, 22:34

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  3. #3
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    Re: Programmable Logic Devices nowadays

    Hi,

    Go to a distributor's internet page and use the selection guide to find out suitable devices.
    Then go to the manufacturers to find out: production status, software, datasheets, application notes, example circuits.

    You will hardly find 9V devices - honestly .. I've never heard about 9V PLDs.

    Klaus
    Please dont contact me via PM, because there is no time to respond to them. No friend requests. Thank you.



    •   Alt5th March 2018, 07:06

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  4. #4
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    Re: Programmable Logic Devices nowadays

    Is this PLD going into a footprint or are you designing a circuit.

    Can you use regulators?



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