Post #1581458
2026-03-20 13:51 UTC
The smaller memory array in bottom left is certainly an SRAM block.
Replies (2)
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@infosecdj@infosec.exchange 2026-03-20 13:55
Then the array in the middle is actually the mask ROM. That's a lot of code space. Bit density is impressive as well, looks like an implant NAND ROM. 10 poly lines going horizontally, 8 routed from the vertical metal-1 and two from the circuitry in the center, likely enable lines. Looks like a very typical architecture for such memory.
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@azonenberg@ioc.exchange 2026-03-20 13:53
@infosecdj What node is this? You're getting beautifully sharp optical images indicating it's nowhere near at the limits of optical resolution, yet it's also multiple metal layers, standard cell based, planarized, etc. That's not a combo I see too often.