View allAll Photos Tagged Microprocessors
The microprocessor. They were mostly made by Rockwell. This was an 8-bit 2MHz device. Remember this was 1981 onwards :-)
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This is what my fancy new macro lens was actually bought for.
This is a 4x4mm ASIC chip (application specific integrated circuit) which drives our sensors.
My old 4Gig Lexar Compact Flash Memory Card died so I decided to see what was inside.
Being an electronics engineer long ago I found it a bit boring - I prefer valves and discrete components.
One of the three video controllers on the board. Seems to be a National Semiconductor 525T Video Controller?
The mod (yellow wire) adds the Band D signal to the radio's Band/data pigtail when connected for use with CAT. Band D signal is used when the APRS tracker (OpenTracker) is plugged in to switch between the HF and VHF profiles.
sigh. 'plug compatible' should always be viewed with suspicion.
supposedly, the TI (texas instruments) and philips (NXP) parts are the same. but they're not!
the TI version needs pullup resistors or it just will NOT work! the NXP part does not need them.
I did all my testing (up to now) with NXP and it was a good thing I tried the TI part else I would not have known about these NEEDED pullups!
the pullups were hacked in as resistor networks (yellow things) across the output of the PE chips and bussed to Vcc as a normal pull-up would do.
A close up view of the FDS-101 control board from a Ferrograph Aurora display, showing the XDF firmware installed. The board has the maximum 256K of RAM installed (actually 512K, but the hardware can only access half). The TLC549 ADC chip for temperature monitoring is also fitted, while the LDR light level ADC chip is absent.
Série "Computadores Antigos": Um processador 386SX de 16 MHz (!!!), acompanhado de seu co-processador matemático 387 (chip maior). Esses co-processadores eram um acessório caro, só adquirido por quem precisasse fazer cálculos pesados.
Curiosidade: (Que eu saiba) o 386SX-16 é a CPU mais lenta capaz de rodar o Windows 95, contanto que o micro tenha memória suficiente, e o usuário tenha paciência suficiente!
("Vintage Computers" series: A 16MHz (!!!) 386SX processor, accompanied by its math coprocessor 387 (larger chip). Those coprocessors were an expensive accessory, only bought by people who needed to do number-crunching.
Curiosity: The 386SX-16 is (AFAIK) the slowest CPU able to run Windows 95, provided that the computer has enough memory, and the user has enough patience!)
Wikipedia: The first Pentium III variant was the Katmai (Intel product code 80525). It was a further development of the Deschutes Pentium II. The only differences were the addition of execution units and the modification of instruction decode and issue logic to support SSE; as well as an improved L1 cache controller - the L2 cache controller was left unchanged, as it would be completely redesigned for Coppermine anyway - which was responsible for the minor performance improvements over the "Deschutes" Pentium IIs. It was first released at speeds of 450 and 500 MHz. Two more versions were released: 550 MHz on May 17, 1999 and 600 MHz on August 2, 1999. On September 27, 1999 Intel released the 533B and 600B running at 533 & 600 MHz respectively. The 'B' suffix indicated that it featured a 133 MHz FSB, instead of the 100 MHz FSB of previous models.
The Katmai contains 9.5 million transistors and has dimensions of 12.3 mm by 10.4 mm (128 mm2). It is fabricated in Intel's P856.5 process, a 0.25 micrometre CMOS process with five levels of aluminum interconnect.[2] The Katmai used the same slot based design as the Pentium II but with the newer SECC2 cartridge that allowed direct CPU core contact with the heat sink. There have been some early models of the Pentium III with 450 and 500 MHz packaged in an older SECC cartridge intended for OEMs.
A notable stepping for enthusiasts was SL35D. This version of Katmai was officially rated for 450 MHz, but often contained cache chips for the 600 MHz model and thus usually was capable of running at 600 MHz.
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Canon 6D charger 327 Teardown & Review www.fixyourcamera.org twitter.com/fixyourcamera www.youtube.com/c/fixyourcameraorg Camera Repair, DSLR parts pictures, DSLR Teardowns, Repair Guide, Repair Tips
I added a wifi thermostat to my home automation gateway!
More details here:
lowpowerlab.com/blog/2015/10/29/radio-thermostat-ct-50-re...