3 ms·
Tiny fpgas are sometimes used just to add a bit of glue logic next to a MCU. Or even just as reconfigurable routing for future-proofing a board. I've seen them
by pi-rat 11y ago
Tiny fpgas are sometimes used just to add a bit of glue logic next to a MCU. Or even just as reconfigurable routing for future-proofing a board. I've seen them as small as 600 logic blocks, which certainly isn't enough to do anything remotely advanced - but they're getting real cheap these days :)
- dragontamer 11y agoI definitely seen them used in that manner... but at only 8 pins (two of which are probably power), its hard for me to imagine good future-proofing in only 6-pins. I guess 28-pin CPLDs are already made though (Atmel ATF750C). But I really don't see how a 6-pin FPGA can be used for routing / future proofing.
- pi-rat 11y agoI think the IC itself is 16 pin, but only 6 is broken out on this board (rest is LEDs/etc). But yeah, good point on the pin count.
- openchip 11y agoall IC pins are available, 5 normal I/Os arranged as DIP8, the "LED IO" also usable as input or opendrain output are in the innner rows where you can solder 6 pins down, or socket "up", so all 10 I/O are available.