FTDI FT232RL

Everyone's favorite USB-serial adapter. First chip decapped on my new sulfuric-acid process.

The goal of this analysis was to determine for sure whether the FT232R uses a USB microcontroller, perhaps a core from FTDI's Vinculum line. Many competing units such as the MCP2200 do this, but it adds extra complexity and possibly more failure modes.

Chip before decapping

Top metal

The lack of any obvious ROM areas suggest that the FT232R is indeed an ASIC. Major functional blocks: EEPROM (upper left, smaller memory bank), SRAM buffer (upper left, larger memory bank), oscillator and PLL (analog circuitry at upper right), standard logic cell array (at center, most of the chip).

Wiki page: http://siliconpr0n.org/archive/doku.php?id=ftdi_ft232rl

Map: http://siliconpr0n.org/map/ftdi/ft232rl_bf_neo5x_dirty/

New images

Its been a bumpy road getting the microscope back online after camera failure.  However, things are beginning to shape up.  First step in getting running is to clear out the old samples that I've had kicking around decapped but not imaged for a few months.  One of interest is the TI chip with the labels on the pins:

No scale bars on images as I haven't calibrated with the new camera.  More than likely they are very similar to the older objectives though and you should be able to match up with older pictures if you are really curious (appended to files like mitx20x or mit5x).

http://siliconpr0n.org/archive/doku.php?id=mcmaster:amd:am29f016b-90ec

http://siliconpr0n.org/archive/doku.php?id=mcmaster:htl:ht33s328256k

http://siliconpr0n.org/archive/doku.php?id=mcmaster:intel:da28f640j5

http://siliconpr0n.org/archive/doku.php?id=mcmaster:mt:46v16m8

http://siliconpr0n.org/archive/doku.php?id=mcmaster:mt:48lc16m8a2

http://siliconpr0n.org/archive/doku.php?id=mcmaster:mt:48lc2m8a1

http://siliconpr0n.org/archive/doku.php?id=mcmaster:mt:48lc4m16a2

http://siliconpr0n.org/archive/doku.php?id=mcmaster:oki:m56vi6800d-10

http://siliconpr0n.org/archive/doku.php?id=mcmaster:samsung:k4h560838c-tca0

http://siliconpr0n.org/archive/doku.php?id=mcmaster:siemens:hyb39s16800at-10

http://siliconpr0n.org/archive/doku.php?id=mcmaster:ti:tms626812bdge