4 ms·

Neat! I love that H7 chip and its gargantuan inatruction manual... ...and you didn't even mention its 2nd core :)

• azonenberg 2y ago
  H735 is one of the single core SKUs. Just a 550 MHz M7. Would not surprise me if the M4 was there and fused off (i.e. same die as multicore H7 offerings), but it's not active.
  • duskwuff 2y ago
    Probably not. The dual-core parts are DIE450 (which is shared with some single-core parts like the H750 series!), but STM32H735 is DIE483.
    • azonenberg 2y ago
      I have a H735 on a retired board slated for decap so we'll find out once I open it up. Do you know if it's fabbed in house, TSMC, or Samsung? I've seen ST silicon from all 3 foundries but the only thing I've seen stated publicly is 40nm. When I get it opened up it should be easy to tell, TSMC and Samsung processes have distinctive features on them that I recognize by sight.
      • duskwuff 2y ago
        No idea - I'm reading the die IDs out of the STM32Cube DB. I haven't looked at the silicon, but I have no reason to doubt what the DB says, especially since it confirms that a lot of allegedly different parts use the same dies.
      • thrtythreeforty 2y ago
        > distinctive features on them that I recognize by sight Now this would be a cool blog post!