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Archive for the ‘Chips’ Category

Taito C-Chip: data by lobotomy

Monday, April 2nd, 2018

CAPS0ff writes: In a previous post we described some early attempts to analyze the Taito C-Chip. See Haze's forum post for some background on the C-Chip itself. In particular we're interested in the EPROM. Previous efforts focused on less invasive techniques with the goal of keeping the C-Chip alive after...

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Posted in Chips | No Comments »

STM32F103 vs GD32F103

Friday, January 19th, 2018

Sjaak wrote about a Chinese ARM chip compared to a ST ARM chip: Most of us do know the ST line of ARM chips called STM32. They come in multiple flavours and the STM32F103 is one of the most common entry level family of chips. They are called by ST...

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Posted in ARM, Chips | 11 Comments »

A journey into Capcom’s CPS2 silicon – Part 2

Tuesday, January 16th, 2018

Here’s an informative part 2 of the Capcom CPS2 reverse engineering series by Eduardo Cruz: Capcom's Play System 2, also known as CPS2, was a new arcade platform introduced in 1993 and a firm call on bootlegging. Featuring similar but improved specs to its predecessor CPS1, the system introduced a new security...

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Posted in Chips, reversed | No Comments »

Examining a vintage RAM chip, I find a counterfeit with an entirely different die inside

Friday, August 25th, 2017

Ken Shirriff writes, "A die photo of a vintage 64-bit TTL RAM chip came up on Twitter recently, but the more I examined the photo the more puzzled I became. The chip didn't look at all like a RAM chip or even a TTL chip, and in fact appeared partially...

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Posted in Chips, reversed | No Comments »

A look inside the DS3231 real-time clock

Thursday, August 10th, 2017

Pete posted an article taking a closer look at Maxim's DS3231 real-time clock: Fortunately, Maxim also offers the DS3231, which is advertised as an “Extremely Accurate I2C-Integrated RTC/TCXO/Crystal”. This chip has the 32kHz crystal integrated into the package itself and uses a built-in temperature sensor to periodically measure the temperature...

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Posted in Chips, reversed | No Comments »

Reverse engineering the 76477 “Space Invaders” sound effect chip from die photos

Tuesday, May 2nd, 2017

Ken Shirriff has written an article on reverse engineering the 76477 "Space Invaders" sound effect chip: Remember the old video game Space Invaders? Some of its sound effects were provided by a chip called the 76477 Complex Sound Generation chip. While the sound effects1 produced by this 1978 chip seem...

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Posted in Chips, reversed | No Comments »

BGA Reballing Practice Kit

Wednesday, March 29th, 2017

@joegrand tweeted, "Practicing BGA reballing with the @dangerousproto BGA Reballing Practice Kit." More resources and instructions available here. Get your own kit for $79 at Seeed.

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Inside the vintage 74181 ALU chip: how it works and why it’s so strange

Monday, March 20th, 2017

Ken Shirriff writes: The 74181 ALU (arithmetic/logic unit) chip powered many of the minicomputers of the 1970s: it provided fast 4-bit arithmetic and logic functions, and could be combined to handle larger words, making it a key part of many CPUs. But if you look at the chip more closely,...

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Posted in Chips, reversed | 3 Comments »

3V3/30V DC/DC converter using SN6505A

Tuesday, May 3rd, 2016

Robert Gawron made a 3V3/30V DC/DC converter using SN6505A: Recently I'v got my samples of SN6505A, it's a really nice IC, so I decided to make a simple DC/DC converter to get familiar with it. What I like in this chip is that it can operate on input voltage as...

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74181 ALU design on Altera MAX II CPLD

Monday, December 21st, 2015

Dilshan Jayakody writes: 74181 is 4-bit arithmetic and logic unit introduced by Texas Instruments in March 1970 and it is known for being the first ALU in single package. This chip is no longer in manufacturing but still it is quite popular in CA (computer architecture) courses in many colleges....

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Posted in Chips, CPLD | 1 Comment »

Analog Devices AD587KN 10V reference

Thursday, November 12th, 2015

SteelCity Electronics published an article about Analog Devices AD587KN 10V reference: I recently got hold of an Analog Devices AD587KN high precision 10.000V reference chip. This model of chip has an output value of 10.000V ± 5mV (that is, an output value of 9.995V to 10.005V) straight out of the...

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Posted in Chips | 1 Comment »

Unbrick FT232 counterfeit chip

Friday, February 6th, 2015

j3tstream writes: Like many people, i buy, time to time, some chips or shield from Chinese (dx, aliexpress, ebay) vendors, unfortunately my FTDI FT232 breakout was a fake chip, here he is a interesting thread about that. Jordi Binefa , (thank, you made my day), describe a quickly and easy method...

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Posted in Chips, how-to | 4 Comments »

ESP8266 powered web server + LED control + DHT22 temperature/humidity sensor reading

Wednesday, November 26th, 2014

Martin writes: The ESP8266 System-on-chip (SoC) has recently came out of nowhere and has been taking by storm the IoT DIY world. It is a $4.50 Wi-Fi capable chip that has remarkable specs, obsoleting overnight a number of similar products that are out there. The price factor, availability of SDK...

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Posted in Chips, hacks | 1 Comment »

Using a standard coil for NFC tag implant reading

Wednesday, October 22nd, 2014

Limpkin writes: Who knew it'd be possible to use this coil to read NFC tags? A while ago I backed the xNT campaign , which aimed at making an NTAG216 based NFC implant for different purposes. After a few months of waiting and a few weeks of trying to find...

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Posted in Chips, wireless | No Comments »

New microchip promises to streamline and simplify diabetes diagnoses

Thursday, July 24th, 2014

Dr. Brian Feldman and his team at Stanford University have developed a new microchip. It promises to streamline and simplify diabetes diagnoses. Ben Coxworth of Gizmag writes: For people who don't already know, here's the difference between type 1 and type 2 diabetes: the body produces little or no insulin in the...

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Single chip AVR BASIC computer

Friday, July 11th, 2014

Dan over at HackAday documented his single chip computer project with the PCBs from DirtyPCBs: A single AVR microcontroller (the ATmega 1284P) has been used to create a standalone computer system which runs the BASIC programming language. The 1284P runs TinyBASIC Plus, generates RCA video signals (using TVout) and reads PS/2...

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Posted in AVR, Chips | No Comments »

NEW PROJECT: BGA Reballing Practice Kit, removal, reballing, soldering exercise

Thursday, May 1st, 2014

At Hacker Camp Shenzhen we learned to reball BGA chips at a mobile phone repair school. This technique was developed to repair cell phones with little to no equipment. That means no expensive reballing rigs, no collection of tiny replacement BGA balls. Just simple hand tools. We thought it was...

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Posted in Chips, components, Hacker Camp Shenzhen, Prototypes | 6 Comments »

Troubleshooting damaged chips

Tuesday, April 1st, 2014

Steve at Big Mess o’ Wires writes: The most common failure I’ve seen is something I call “burnout”, and has affected about 4% of the units. After anywhere from one minute to a few hours of working normally, the Floppy Emu stops functioning, and both the 3.3V regulator and the...

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Single chip provides 3D images inside the heart and blood vessels

Friday, February 21st, 2014

Researchers at the Georgia Institute of Technology have developed a new medical imaging technology that provides 3D imaging from inside the heart and blood vessels: The device integrates ultrasound transducers with processing electronics on a single 1.4 millimeter silicon chip. On-chip processing of signals allows data from more than a hundred elements...

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Posted in 3D Model, Chips | No Comments »

Microchip PIC chips could have been the Power Behind Arduino

Tuesday, February 11th, 2014

Gerry Sweeney writes: As I understand it Microchip are in the silicon chip business selling micro-controllers – actually Microchip make some really awesome parts and I am guessing here but I suspect they probably want to sell lots and lots of those awesome parts right? So why do they suppress...

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Posted in Chips | 28 Comments »

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