4 ms·
Well, that's a surprise! I just checked and the LSI7366R (the version I use) is now available through Digi-Key. They have really expanded their Marketplace pro
by HeyLaughingBoy 3y ago
Well, that's a surprise!
I just checked and the LSI7366R (the version I use) is now available through Digi-Key. They have really expanded their Marketplace program. I used to have to buy them directly from LSI: it wasn't a big deal to setup an account with them, but it's nice to know that next time I can just piggyback it onto my Digikey order. Although if the delay is a couple weeks I'd have to plan ahead. They typically get them to me in a couple of days.
- dekhn 3y agoSo that combines both the quad decoder and the counter? That would have saved me a chip :) as my project was basically an encoder-driven 8-bit binary counter.
- HeyLaughingBoy 3y agoYes, I wish it also had differential inputs. My original design was based on an Arduino Nano with an AtMega328. Originally it was designed to read 0-10-0V position signals. This is from really old machine tools :-) Processing encoder inputs was a much later change. With the rate of interrupts coming in from a high-resolution encoder turning at 3,000 RPM, there was no way it would keep up and still do all the processing needed. The product volume wasn't high enough to make it worthwhile moving to a processor that had the timer/counter resources to handle it in hardware, so the simplest solution was adding a $6 chip (and a $2 differential interface chip to handle the differential encoder output channels).