#nakeddiefriday — Public Fediverse posts

*Rummages in the huge bag* Oh for...
Oh, there we go. Welcome to the #NakedDieFriday everyone!

Today I got a nice old chip for you, it's the PIC16C715 by Microchip! A "high performance" RISC CPU with a bunch of peripherals, most importantly 2Kw program ROM, 128B RAM, and, would you believe it, an ADC!

The image is oriented so that pin 1 is on the top edge. Notably, there are way more pads than the 18 pins of the package. I am most intrigued by those at the bottom where port B is.

Many thanks to @RueNahcMohr for supplying this sample!

Full-res map: http://infosecdj.net/map/microchip/pic16c715/infosecdj_mz_nikpa40x/

#electronics #dieshot #reverseengineering

Sorry, I am dead tired today and yesterday was awful too, but I don't want to leave you all without something to look at. So #NakedDieFriday will run but without much commentary from my end.

Today's sample is a Mitsubishi MCU, for which I do not have a commercial p/n unfortunately. It is fabbed in a poly-gate CMOS process with one metal layer. I believe this has a 8-bit CPU, which one can see on the left side -- a rather classic design with PLA-based control. The middle is dominated by read-only memory, and on the right there is some SRAM as well. All the typical components for a MCU.

Many thanks to @RueNahcMohr for supplying this sample!

Full-res map: http://infosecdj.net/map/mitsubishi/a0363755/infosecdj_mz_nikpa40x

#electronics #reverseengineering #microscopy

#NakedDieFriday restarts after operator error! Sorry about that. And I didn't even drink anything yet. :D

Today we have a C1034AH-J by Agere. This is apparently a sigma-delta codec sitting in front of a modem DSP.

Many thanks to @RueNahcMohr for supplying the sample!

Full-res map: http://infosecdj.net/map/agere/1034ah-j/infosecdj_mz_nikpa40x/

#electronics #reverseengineering

Hello! #NakedDieFriday here!

Today I have a very colourful image for you to look at. This is partial dies formed at the very edge of a wafer -- specifically one from the GFMPW-1 run by efabless.

It is interesting to see how the layers did not have the same size and formed almost a deprocessed view of the design, as well as the varying thickness of material producing a rainbow.

Full-res map: http://infosecdj.net/map/efabless/gf180mcu-gfmpw1-partials/infosecdj_mz_nikpa40x

#electronics #semiconductors

Greetings. It is Friday, and it means it is time for #NakedDieFriday again.

Today I have for you one TPS51427 by Texas Instruments, a "Dual D-Cap™ Synchronous Step-Down Controller for Notebook Power Rails" according to the data sheet. Pin one is in the lower left corner in the image.

Full-res map: http://infosecdj.net/map/ti/tps51427/infosecdj_mz_nikpa40x/

#electronics #reverseengineering #microscopy

Hello #NakedDieFriday fans, hope you did not miss me too much. Here is this week's eye candy for you.

Supplied by good folks at https://wafer.space/ was a batch of die samples from their first production run. Here is one of them -- a die-sized doodle of their logo. It is open source too: https://github.com/89Mods/ws-logo-die

There is circuitry there apart from the logo, but the project readme does not say what it does. :-)

Full-res map: http://infosecdj.net/map/wafer-space/gf180mcu-ws1-wslg/infosecdj_mz_nikpa40x/

#NakedDieFriday is declared open! Pizza is also on the way.

Today we have one A42MX09 by Actel, an #FPGA. I think that's the first in my little collection. As is expected, the device has a very regular structure -- blocks of logic with routing channels between them.

This sample was kindly supplied by @RueNahcMohr -- thank you!

Full-res map: http://infosecdj.net/map/actel/a42mx09-pq100/infosecdj_mz_nikpa40x/

#electronics #reverseengineering

Bonus #NakedDieFriday content! Oh wow!

This is an image sensor I removed from a networked camera. No idea who made it or what the p/n is. If you have anything on it, please let me know!

Interesting how the tracks from the bottom actually wrap around the die sides, quite the unusual packaging.

Front in full res: http://infosecdj.net/map/unknown/image-sensor-9pbl/infosecdj_mz_nikmp20x_front/

Hello! Finally, I have decided what we shall have for #NakedDieFriday so here goes.

This is EM9305 by EM Microelectronic, and it's the BLE chip used in the #Lego Smart brick, another interesting chip besides their ASIC which I think I posted about before. Many thanks to the person who sent this sample in, you know who you are!

Full-res at: http://infosecdj.net/map/em-microelectronic/em9305/infosecdj_mz_nikpa60x/

#electronics #reverseengineering

Good day to you! This is #NakedDieFriday time!

Today's exhibit is one I am not sure where from exactly, highly likely some e-scrap I had around. It is a A4003C by Aerosemi, a 3-channel PMIC in a tiny 3x3mm QFN package.

Full-res map: http://infosecdj.net/map/aerosemi/a4003c/infosecdj_mz_nikpa60x/

#electronics #reverseengineering

Hello! Is Friday, so is time for #NakedDieFriday whether you want it or not.

I was asked several times, whether one can see an IC failure under a microscope. Well, I am sure that today you won't be able to miss it.

Here is the sample in situ. Can you spot the problem?

#electronics #reverseengineering

RE: https://nerdculture.de/@M/117009787445198194

Eventuell habe ich dann nach dem Urlaub etwas nettes für den #NakedDieFriday

Das GDS ist fertig und der EBeam sollte nächste Woche schreiben.

Hello and welcome to #NakedDieFriday -- the last one this month.

Please have a look at this nice die, designed by @mole99 as part of his master's thesis. It's called Greyhound: A RISC-V SoC with tightly coupled eFPGA on IHP SG13G2.

For once, this is something where sources are available: https://github.com/mole99/greyhound-ihp/

And a full-res map I took of the sample Leo provided me with: http://infosecdj.net/map/ihp/mole99-greyhound/infosecdj_mz_nikpa40x/

#electronics

Ahoy there, #NakedDieFriday is late in the day but still happening!

Today I got a Motorola part for you, one named SC541097. This looks like a special run of MC68HC05JP, which is a HC05-based microcontroller.

Many thanks to @RueNahcMohr for supplying this sample!

Full-res map: http://infosecdj.net/map/motorola/sc541097-j53w/infosecdj_mz_nikpa40x/

#electronics #reverseengineering #microscopy

Hello, how are you doing? This is #NakedDieFriday speaking, and today's post is the continuation of the one from last week. It is the second die out of Conexant FM336PLUS, a modem chip. Unfortunately, there was some trash on the die which I could not remove.

The die is larger than the other one and appears to be fully digital. There are a lot of memory blocks as well. Let's have a more detailed look.

Full-res map: http://infosecdj.net/map/conexant/fm336plus-b/infosecdj_mz_nikpa40x_66p/

#electronics #reverseengineering #microscopy

Hello! This is a very late #NakedDieFriday talking. I got caught in something here and totally lost track of time.

Today we have one half of a chip. :D This FM336PLUS by Conexant contains two dies, but I only imaged one of them due to time constraints. The product itself is a "High Performance Fax Modem" going all the way up to 33600bps! Hands up those who had one of 33.6k modems back in the day. I did, and I loved it.

Many thanks to @RueNahcMohr for supplying this sample!

Full-res map: http://infosecdj.net/map/conexant/fm336plus-a/infosecdj_mz_nikpa40x/

#electronics #reverseengineering #microscopy

Greetings! How are you all doing? It's been raining here on and off for a couple days now. But that's not going to stop #NakedDieFriday is it.

Today's exhibit is a sibling of the venerable 6502. This is almost the same, but made in CMOS: R65C02 by Rockwell. The design has been enhanced in several aspects over the NMOS one.

Full-res map: http://infosecdj.net/map/rockwell/r65c02p3/infosecdj_nikpa40x/

NOTE: The map is layered, you can see the metal layer and the poly layer.

#retrocomputing #reverseengineering #icre #microscopy

Hello! Allow me to welcome to this +30C #NakedDieFriday installment. Remember to stay hydrated and apply sunscreen when you go out.

Today we have one NEC chip, a (uP)D23C1001EA -- a 128Kx8 mask ROM. The image is upside down -- pin 1 is on the bottom edge. 🧵

Thank you so much to @RueNahcMohr for supplying this sample!

Full-res map: http://infosecdj.net/map/nec/d23c1001ea/infosecdj_mz_nikpa40x/

Hello and welcome to this week's installment of #NakedDieFriday !

Today I got a new (for the collection) manufacturer, nevertheless very familiar to the #retrocomputing crowd: Western Digital. And the chip they made is WD10C27, solemnly described by the manufacturer as "data separator" for hard disk applications. The data sheet claims this is made with a 1.25u 5V CMOS process.

Many thanks to @RueNahcMohr for supplying this sample!

Full-res map: http://infosecdj.net/map/western-digital/wd10c27-xp/infosecdj_mz_nikpa40x/

Good evening! This is #NakedDieFriday speaking.

Today I got one DRAM chip, named GM71C4100CJ70 by LG Semi / GoldStar apparently. It is a 4Mx1 part.

Many thanks to @root42 for supplying this sample! His account and yt channel is dedicated to retro hardware -- make sure to check it out if that's your cup of tea!

Full-res map: http://infosecdj.net/map/lg-semi/gm71c4100cj60/infosecdj_mz_nikpa40x/

#electronics #retrocomputing

Achso. Der Gültige Hashtag ist natürlich #NakedDieFriday.

Good evening! Well, it is evening here anyways, and I am still on time to do this week's #NakedDieFriday installment.

This here is a TDA8708T, made by Philips. It is a "video analog input interface", basically a 8-bit ADC with an analog front-end to capture video data. The die sports 3 metal layers but seems to be still designed with bipolar tech. Metal 1 was done with a different process, as it looks to be much smoother.

Unfortunately, I do not know enough on bipolar tech to provide any meaningful commentary here, so I hope you at least enjoy the image. 🙏

Full-res map: http://infosecdj.net/map/philips/tda8708t/infosecdj_mz_nikpa40x/

#electronics #reverseengineering #icre

RE: https://climatejustice.global/@s4f_le/114077303498347737

Erinnert ihr euch noch an das (wohl) kleinste Klimadiagramm der Welt, hergestellt von den Kolleg*innen aus #Chemnitz?

Wir haben hier einen Testchip aus Chemnitz bekommen.

Wollen wir mal drauf schauen?
#NakedDieFriday

O hai! It is #NakedDieFriday today, and despite my fiber still carrying no light, I think we can organize something.

Today's exhibit is one that should be familiar to the DIYers around. This is a chip that went into many a USB to serial doodads, the CH340 by WCH / WinChipHead. The chip looks rather unassuming, with a reasonably large CMOS 2-met process.

EDIT: Full-res map with layers at http://infosecdj.net/map/winchiphead/ch340g/infosecdj_nikpa60x/

#electronics #reverseengineering

Hello and welcome to #NakedDieFriday! This time with proper capitalisation. :-)

The die of today is named HD6483153 and is designed by Hitachi. It fell out of a SIM card. I do not know what commercial p/n this is, if it was ever assigned one. If anyone can provide any details on what smart cards were made by Hitachi, please do so! In the meantime, we shall explore a bit. 🧵

Full-res map: http://infosecdj.net/map/hitachi/hd6483153/infosecdj_mz_nikpa40x_2/

EDIT: This is H8/3153, part of the H8/3150 series.

#electronics #reverseengineering #smartcards

PSA: Unfortunately, #NakedDieFriday won't be happening today as I am travelling due to work (a shoutout to all the Pwn2Own participants in Berlin!) so I owe you guys one extra when I'm back home.

Incidentally I can partake in #nakeddiefriday today. Yesterday’s museum visit yielded a die, probably a DRAM or SRAM I would guess from its regular appearance. But what is the black dot?
CC @infosecdj

Greetings. This is #nakeddiefriday and today I got one on a reader's request.

I was kindly provided with the ASIC chip from the new #Lego Smart Brick. It is the one marked DA000001-04, which nobody really knows what it is and who made it. There were suggestions it was made by Dialog but no solid evidence AFAIK.

The first image is with the die intact. You can see a ball pad array on the redistribution layer. RDL is made from polyimide with copper traces, not unlike flex PCBs. It is bonded to the silicon die pads on the perimeter. Unfortunately, RDL considerably obscures the die.

Full-res map: http://infosecdj.net/map/csem/da000001-04/infosecdj_mz_nikpa40x/ (layered)

1/n

#electronics #reverseengineering #icre

Good day to you! It is the first day of May here in Copenhagen, it is Friday, and it is hot like summer. This means, it is a good day for #nakeddiefriday so without further ado, here it is.

This is one Zilog Z765APS, a floppy disk controller chip of 1984 vintage made in NMOS. This one is very similar to NEC uPD765A; I am not sure if Zilog licensed the maskwork. What I find particularly interesting about this one is a relatively huge microcode ROM on the left side of the die. Wouldn't it be interesting to learn what they needed so much code for?

Let's experiment a bit: how about you guys scroll around the die and post the snippets you found most interesting in the comments below? We can discuss later.

Full-res map for an in-depth look: http://infosecdj.net/map/zilog/z765aps/infosecdj_mz_nikpa40x_50p/

#electronics #retrocomputing #reverseengineering #microscopy

Hellooooo, I see it is #nakeddiefriday today, so here goes.

This one is the MC33592FTA by Motorola/Freescale, a RF receiver chip built on a 2-met polysilicon gate CMOS process. The die is rather on the small side, consider the size of bonding pads in relation to the overall area.

Full-res map: http://infosecdj.net/map/motorola/mc33592fta-l97p/infosecdj_mz_nikpa60x/

#electronics #reverseengineering #microscopy

Hi! A little bit late in the day, but #nakeddiefriday is still happening today.

And today's exhibit is TC8568AM by Toshiba. This is a VFO to be used in floppy disk controllers. This is made very prominent on the die itself. Interesting how such a discrete part was still made in early 90s, where I kind of expected them to be replaced by fully integrated parts. A really short thread will follow.

Full-res map: http://infosecdj.net/map/toshiba/tc8568am/infosecdj_mz_nikpa40x_66p/

Many thanks to @RueNahcMohr for supplying this sample!

#electronics #reverseengineering #microscopy