NoName USB drive.

[MasterT]

Does anyone know pinout for this chip?

20210126_190635.jpg (1.53 MiB) Viewed 1972 times

Thank you.

[Roman_TS]

Hello.

You can try to parse the traces if you find the layout of CPU which is using in this drive. Here is the guide:

https://blog.acelaboratory.com/pc-3000- ... emory.html

Another option - try to check the TSOP-48 pins on the PCB and BGA pads (use BEEP mode on your multimeter). It's the way how to find the pinout and read this chip with Multiboard or with Spiderboard.

[MasterT]

CPU is actually COB, could not find layout this way. So I traced back pinout from TSOP-48. It's actually BGA-63 if anyone else wonders.

[Roman_TS]

Thank you for sharing the layout. Very useful of other Flash engineers.

[MasterT]

I get chip ID EC 36 A5 C0 which is not in your database.

[Roman_TS]

Can you send full chip ID? You wrote just a first part.

[MasterT]

Here it is:

20210127_152738.jpg (700.69 KiB) Viewed 1939 times

[MasterT]

Does it help if i add datasheet for the chip?

https://datasheetspdf.com/pdf-file/2648 ... F1208R0B/1

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[Roman_TS]

Well, it's not a ONFI chip, and not a JDEC.

It's internal Samsung development. This chip is very-very tricky - it reads all sectors by 3 commands;

Command 00 read first 256 bytes
Command 01 read second 256 bytes
Command 50 reads the rest 16 bytes

Command 00 - is a basic command for NAND reading, while commands 01 and 50 are optional and belongs only for this chip. They are not in used and usually you can meet them in very old flash drive where the memory chip was even not a classic NAND Flash (something between NOR and NAND technology)

I'm afraid, existing tools can't read it.

[MasterT]

Thank you for looking into it.