regarding BM1384 I found only following datasheet and there is no some recommended connection. Do you have better also with connection diagrams ?
shop.bitmain.com/support.htm?pid=00720141220132903742H2RLy6C40630

ok thank you for fresh information, but what I don't understand is that, how others companies or better to say other guys did a research and how they used the BM chips in their own miners and devices (2PAC 2xBM1384 USB STICKMINER atc....). It should be somewhere some circuit diagram or recommended connection of mentioned chips. I have seen just super-easy datasheet from Bitmain, but there is almost nothing useful.

Far as I know, copy of original PCB is not possible, because it is 4 or 6 layers desk and without drawing it is suicide. Then question is how they did it ? I saw some rumors about Russian guys who copied S9 miner.

If I understood correctly, Bitmain its just the customer which has ordered mentioned chip somewhere (maybe Texas Instrument, or Semiconductor) and these companies distributed ASIC chips directly for Bitmain with name BMxxxx. Am I right or Bitmain is the direct producer/manufacturer of chips?

Hello all,

I have a serious question regarding circuit diagrams for S9 or L3+ miners. Is possible to find or buy somewhere circuit diagrams, PCBs layouts, where is BM chips located?

Or find a precise datasheet of BM1387 or BM1485 ASIC chips ?

Does anybody have some information ?

Thank you for discussion.