The Ware for April 2010 is shown below. Click the image for a larger version.
I’m struggling to come up with meaningful commentary that won’t also give away the answer, so I’ll save the comments for when I provide the solution!
This entry was posted on Saturday, May 1st, 2010 at 8:23 am and is filed under Hacking. You can follow any responses to this entry through the RSS 2.0 feed.
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Yeah looks kinda old, and low density (in modern terms). But what looks like Cache on the left. but then the actual logic block (between the two large blocks) seems small compared to the overall size.
Maybe something like a FPGA, maybe cache on one side, central logic/processor, and FPGA block.
I would say the two sites with two wires each are power and ground. Two wires for extra current going to a single lead on the package. It would make sense if it were from a DIP package.
The big canvas-looking area on the right side appears to be a 128 by 128 array of some kind. The two areas on the left appear to be one 8 by 64 array of some kind.
My guess would be that the right, big 128 by 128 array is some sort of permanent program memory. 16384 bits or 2048 bytes in what looks like 8 banks given the left side of the array.
The other array on the left is probably SRAM registers.
I would say this is a 40/44pin 8bit Harvard architecture MCU with 2k instructions, 64 registers/SRAM.
If those squiggly inductor symbol-looking lines at the pins in the upper left are resistors, I would say this chip has the capability of providing pullup resistors on 7 of its pins.
AGG guess is close, but has half the program space. It’s an Intel 8749.
Hey, Wedge bonds may be old school for logic devices, but take a look at most power devices totay and you will find …. tada… wedge bonds. I happen to work for a major supplier of large wire wedge bonders… That was actually the first thing that caught my eye when I looked at the picture :)
Maybe 15 years ago I walked in the board room of a small chip-body-for-hire – they had a photomicrograph of a die about this complex (a lot less less ram) laid out over the table and had hired a bunch of college kids for the summer to manually match gates to layout to reverse engineer it – they weren’t cloning it per-se just making a work alike and working to make sure there was no hidden undocumented functionality – that pic isn’t quite good enough to do that though it’s coming close.
I think it is the IR sensor from a wii remote. On the left is the image sensor, on the right is the block ram. In the middle is the sensor logic.
must be kinda 1970 technology.
some memory and 4 bit ULA
Yeah looks kinda old, and low density (in modern terms). But what looks like Cache on the left. but then the actual logic block (between the two large blocks) seems small compared to the overall size.
Maybe something like a FPGA, maybe cache on one side, central logic/processor, and FPGA block.
Intel 8742 MCU?
I recognized it from image illustrating this article: http://en.wikipedia.org/wiki/Microcontroller
Looks like an 8742 to me.
I think it’s an Intel 8749
I count 42 pins, or is it just two pairs of pins for power and ground?
I have found some pictures of a 8749:
http://www.cpu-galaxy.at/CPU/Ram%20Rom%20Eprom/Microcontroller/Intel%208749%20section.htm
and
http://www.chiefish.com/image/INTEL%20D8749H.jpg
I would say the two sites with two wires each are power and ground. Two wires for extra current going to a single lead on the package. It would make sense if it were from a DIP package.
You are right, it really looks a lot like the 8749 now that i think of it.
http://en.wikipedia.org/wiki/File:153056995_5ef8b01016_o.jpg
It looks like Intel 8748.
The big canvas-looking area on the right side appears to be a 128 by 128 array of some kind. The two areas on the left appear to be one 8 by 64 array of some kind.
My guess would be that the right, big 128 by 128 array is some sort of permanent program memory. 16384 bits or 2048 bytes in what looks like 8 banks given the left side of the array.
The other array on the left is probably SRAM registers.
I would say this is a 40/44pin 8bit Harvard architecture MCU with 2k instructions, 64 registers/SRAM.
If those squiggly inductor symbol-looking lines at the pins in the upper left are resistors, I would say this chip has the capability of providing pullup resistors on 7 of its pins.
AGG guess is close, but has half the program space. It’s an Intel 8749.
CCD webcam sensor
Note the wedge bonds. Old school!
Hey, Wedge bonds may be old school for logic devices, but take a look at most power devices totay and you will find …. tada… wedge bonds. I happen to work for a major supplier of large wire wedge bonders… That was actually the first thing that caught my eye when I looked at the picture :)
Maybe 15 years ago I walked in the board room of a small chip-body-for-hire – they had a photomicrograph of a die about this complex (a lot less less ram) laid out over the table and had hired a bunch of college kids for the summer to manually match gates to layout to reverse engineer it – they weren’t cloning it per-se just making a work alike and working to make sure there was no hidden undocumented functionality – that pic isn’t quite good enough to do that though it’s coming close.
umm – I mean “chip-body-for-hire-company”
Thanks very much for sharing.
There is no doubt that the Christian louboutin is the best high heels in today’s fashion world.
Die in a fire.
Slowly.
8051 8 Bit control oriented Microcomputer