Looking for info

[Daniel Rudy]

Hello,

I'm looking for information on what I believe to be a microcontroller.
All that I have is the markings on the chip. The chip is labeled EAGLE
C1698BD-13. There is a 0525 also which I'm assuming is the date code.
This device is part of a USB flash drive. There is also a Micron
29F2G08AABWP 256Mx8 NAND flash memory chip on the backside of the
device. There is also a 12MHz oscillator can as well. I did a
extensive google search and didn't turn anything up. Not even
findchips.com had any info on this part. Any suggestions on where to look?

 

[Franc Zabkar]

I'm looking for information on what I believe to be a microcontroller.
All that I have is the markings on the chip. The chip is labeled EAGLE
C1698BD-13. There is a 0525 also which I'm assuming is the date code.
This device is part of a USB flash drive. There is also a Micron
29F2G08AABWP 256Mx8 NAND flash memory chip on the backside of the
device. There is also a 12MHz oscillator can as well.

I'm guessing it's probably an NEC uPC1698BD-13, whatever that is. The
"-13" may suggest a 13MHz part.

-- Franc Zabkar

Please remove one 'i' from my address when replying by email.

 

[Daniel Rudy]

At about the time of 9/18/2005 1:42 AM, Franc Zabkar stated the following:

I'm guessing it's probably an NEC uPC1698BD-13, whatever that is. The
"-13" may suggest a 13MHz part.

-- Franc Zabkar

Please remove one 'i' from my address when replying by email.

I did some further checking on the device using a USB query tool in
unix, and I found that the chip was actually made by a company called
USBest in Taiwan. They have 3 different controller chips but no real
information on them. I also found that C-One, also in Taiwan, seems to
have written the software for this part. I'll check out the NEC angle
and see if that pans out. I'm beginning to wonder if this is a custom part.

The 13MHz part was my guess too. Plus the fact that there is a 12MHz
OSC can further confirms that fact. Thank you for the information.

 

[Franc Zabkar]

At about the time of 9/18/2005 1:42 AM, Franc Zabkar stated the following:

I did some further checking on the device using a USB query tool in
unix, and I found that the chip was actually made by a company called
USBest in Taiwan. They have 3 different controller chips but no real
information on them. I also found that C-One, also in Taiwan, seems to
have written the software for this part. I'll check out the NEC angle
and see if that pans out. I'm beginning to wonder if this is a custom part.

The 13MHz part was my guess too. Plus the fact that there is a 12MHz
OSC can further confirms that fact. Thank you for the information.

In retrospect, uPC parts would be analogue, not digital. Sorry for
wasting your time. <smacks forehead>

I had a look at my own drive (L using DOS DEBUG. Here is the first
part of the drive's "boot sector":

debug
-L 100 n 0 1 (n = drive number, ie 0 = drive A, 1=B, 2=C, ... b=L)
-D 100 2ff

12ED:0100 EB 3E 90 2B 54 25 54 4B-49 48 43 00 02 08 01 00
.>.+T%TKIHC.....

-Q

The string "+T%TKIHC" identifies the OEM name of the flash drive.
Often this indicates the OS under which it was formatted. I'm not sure
if this is of any use, though. Perhaps it identifies the software
house.

The "usbview.exe" utility on the Win98SE CD provides details about
connected USB devices. Mine shows up as:

idVendor: 0x0EA0
idProduct: 0x2168

I don't know whether this info has any bearing on the device's
chipset, though.

-- Franc Zabkar

Please remove one 'i' from my address when replying by email.