Re:What? More 8-Bit Microcontrollers?
by HeyLaughingBoy on Friday July 01, 2022 @01:28PM
(#31949761)
> So this is why sich older chips could still be advantageous
Yup. I just found myself having to buffer an ESP32's output with an LS245!! because the old-school LED display I needed to drive required more current on its logic inputs than the ESP could source. An AVR would have driven it just fine.
And before anyone asked why I used a 74LS245 instead of a more appropriate level converter, I had to go with what's in stock these days and this design will have at most 3 units built.
Yup. I just found myself having to buffer an ESP32's output with an LS245!! because the old-school LED display I needed to drive required more current on its logic inputs than the ESP could source. An AVR would have driven it just fine.
And before anyone asked why I used a 74LS245 instead of a more appropriate level converter, I had to go with what's in stock these days and this design will have at most 3 units built.