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!!

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

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

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

Can you use regulators?