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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
by 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 agoProbably 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 agoI 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 agoNo 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!