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[DPRG] Programmable Logic Devices Question

Subject: [DPRG] Programmable Logic Devices Question
From: Paul Bouchier bouchier at classicnet.net
Date: Thu Jan 14 18:58:15 CST 2010

Interesting question Jose. Like many of us, it's been so long. But take a
look at Altera's family of SPLDs, particularly the ATF16V8 in a 20-pin DIP
package ($1.37 from digikey). Here are their devices:
Altera offers winCUPL for free, a windows version of the ancient (but
decent) PAL compiler CUPL. It lets you enter the logic as boolean equations
(and a few other forms too).
Your challenge will be to find a cheap programmer, or a device which
supports jtag in-system programming and a matching usb-jtag cable. I'll bet
TI has a data IO programmer tucked away somewhere.
The ATF1500 is in-system programmable but is in a 44-pin plcc and likely
bigger than you want.
Also, have a look at Lattice Semiconductor. They still sell their GAL's -
look at the ispGAL22V10 ($4.64 from their online store). It's in-system
programmable, but their USB programming cable is $150 for USB or $65 for
parallel port.

-----Original Message-----
From: dprglist-bounces at dprg.org [mailto:dprglist-bounces at dprg.org] On Behalf
Of Quinones, Jose
Sent: Thursday, January 14, 2010 2:44 PM
To: dprglist at dprg.org
Subject: [DPRG] Programmable Logic Devices Question

Hi Group,


I am wondering what programmable logic device setup would you recommend?
Every now and then I need a function which a simple programmable device can
tackle better than a microcontroller. Some times it is because of speed, and
other times it is because I just need one dinky little function and an
entire microcontroller seems like mega overkill.


I know there is a lot of support out there for FPGA and similar devices, but
these are, as well, too much overkill.


What I am wondering if there is out there some simple 8 pin devices with a
few logic gates to form a simple logic equation. Or it can be a little bit
more complicated than this, but not to the FPGA extent.


It would also be a plus that they have good tools. I went into Atmel and
their tools almost look like DOS ancient technology. It uses the parallel
port. What the heck is this? Mega Legacy or a time machine?


What have you used and what can you recommend? Thanks for your input!


Best regards,



Texas Instruments - Applications Engineer

13560 North Central Expressway


Dallas TX, 75243

Office: 1-214-567-7275

Mobile: 1-214-240-3179


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