All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: What is this component (L343)? and NAND ID = 89A825CBA9
PostPosted: September 16th, 2018, 11:41 
Offline

Joined: July 30th, 2012, 3:37
Posts: 310
Location: Fairfield, CT USA
I got an unusual PNY 128GB flash drive today, it has a component I've never seen before, a chip labeled.

Code:
AGDE
L343

The package dimensions are 6x2

None of the components have failed, I recognize the LDO right away, I'm not looking to do down that path, just identify this component.

The controller is IS903.
Also the NAND chip is interesting
NAND Reader ID: 8 x 89 88 24 4b (8GB) = 64GB
Controller ID: 4 x 89 A8 25 CB (16GB) = 64GB

I've seen SanDisk/Toshiba switch manufacture IDs (45/98) when IDing but NEVER an entire model/bank count.
By see, I mean with a logic analyzer, first ID = 45, second ID = 98.

Code:
Flash ID code:      89A825CB - Intel JS29F64B08HAMF1 - 4CE/Dual Channel [MLC-8K] -> Total Capacity = 128GB

Flash ID mapping table
----------------------------
[Channel 0]   [Channel 1]
89A825CBA900   89A825CBA900
89A825CBA900   89A825CBA900
89A825CBA900   89A825CBA900
89A825CBA900   89A825CBA900


Before thinking the controller ID code is erroneous, why would it return a valid NAND chip ID, much less one of the proper capacity?


Attachments:
_DSC9189.jpg
_DSC9189.jpg [ 535.47 KiB | Viewed 6694 times ]

_________________
Recover My Flash Drive
Top
 Profile  
 
 Post subject: Re: What is this component (L343)? and NAND ID = 89A825CBA9
PostPosted: September 16th, 2018, 16:29 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15463
Location: Australia
The IS903 requires 1.2V (Vcore) and 3.3V (Vio) supplies. The "QVN" LDO regulator provides the 1.2V, so where is the 3.3V?

BTW, "343" could be a YWW date code, ie week 43 of 2013.


TLV70212DBVR, Texas Instruments, 1.2V, 300mA, Low IQ, LDO Regulator, marking QVN, SOT-23-5:
http://www.ti.com/lit/ds/symlink/tlv702.pdf

IS903, Innostor, USB 3.0 flash controller, Vcore = 1.2V, Vio = 3.3V, 30MHz:
http://www.innostor.com/file/Innostor_IS903_Specification.pdf

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: What is this component (L343)? and NAND ID = 89A825CBA9
PostPosted: September 16th, 2018, 18:11 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15463
Location: Australia
AFAICT, the "AGDE" component must be a 3.3V regulator, although I would have expected to see an inductor nearby (or on the underside of the PCB?). FWIW, other designs use an EML3020 switchmode IC (TDFN-6 package).

http://flashboot.ru/flash_recovery/2016/10/03/fix-innostor-hardware-problem.html
https://img.alicdn.com/imgextra/i4/2226666264/TB2_U._wm8mpuFjSZFMXXaxpVXa_!!2226666264.jpg
https://imagescdn.tweaktown.com/content/5/4/5481_07_adata_dashdrive_elite_ue700_usb_3_0_flash_drive_full.jpg
https://imagescdn.tweaktown.com/content/5/4/5481_08_adata_dashdrive_elite_ue700_usb_3_0_flash_drive_full.jpg

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: What is this component (L343)? and NAND ID = 89A825CBA9
PostPosted: September 16th, 2018, 22:43 
Offline
User avatar

Joined: December 4th, 2012, 1:35
Posts: 3844
Location: Adelaide, Australia
maybe they doing some funky stuff and "striping" channel 0 and channel 1 onto the same phy bank, and this is what NR is seeing (with some controller overlay or translation to lie about the ID. whereas the LA is seeing reality.

I am not 100% following whats going on either, definately a new way for PNY to be weirdo's


Top
 Profile  
 
 Post subject: Re: What is this component (L343)? and NAND ID = 89A825CBA9
PostPosted: September 17th, 2018, 2:15 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15463
Location: Australia
Does this help (from Innostor's datasheet)?


Attachments:
IS903_CEs_8.gif
IS903_CEs_8.gif [ 28.7 KiB | Viewed 6624 times ]
IS903_CEs_4.gif
IS903_CEs_4.gif [ 32.29 KiB | Viewed 6624 times ]

_________________
A backup a day keeps DR away.
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 40 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group