Electronic Components
View allAll Photos Tagged eprom
Made by my spouse decades ago when then-Storage Technology gave away tiny chips. (If you're into geeky 'where are they now queries', Storage Tech was acquired by Sun Microsystems, which was later acquired by Oracle Corporation.)
But back to our wee 2cm chip. He is climbing a tiny piece of driftwood. That's a winter leaf or two behind him (he has very long horns or antennae, hence his gender). Bokeh balls come from a crumpled piece of foil some distance away. Tried this outdoors, but a strong wind toppled the fearless mountain goat.
I think perhaps Howard made EPROM earrings for me around the same time (see first comment).
In January 2022 I asked for help and a Flickr support hero removed both of my accounts from the Explore algorithm. I feel more relaxed and my jaw no longer hurts. I’m grateful to SmugMug for saving Flickr, and I have nothing against Explore; it just is not for me—especially during this pandemic.
Electronic micro chip (eprom) showing component layout and connecting wires.
The microchip enclosure has a window that allowed the picture to be taken.
The actual size of the chip is about 5 X 4mm.
Best viewed zoomed in.
An obsolete memory chip from an obsolete company (the National Semiconductor). A reminder of the good old days of electronics.
You can see the part number and the company logo inscribed on the right side of the chip.
BEST VIEWED ORIGINAL SIZE
This is an Erasable Programmable Read Only Memory (EPROM for short). Our computers in 1980's used to employ these chips to hold the BIOS. Nowadays we use FLASH chips. The thinnest electrical tracks on the chip must be 2 microns thick. You can see them if you view the photo in original size. Did you notice 2732 (the part number) in the upper right corner of the chip?
Sorry if you are not into electronics. In this photography group my aim is to demonstrate that one can capture such submillimeter features by using macro lenses. I used a 70 mm SIGMA macro lens. Of course a tripod, timed shutter to prevent camera shake and a LED light source are necessary for a successful shot.
ORIJINAL BOYDA BAKMANIZI TAVSIYE EDERIM
Bu bir Silinip Programlanabilir Sirf Okunabilen Bellek. 80'li yillarda bilgisayarlarinizin BIOS'u bu chiplere yazilirdi. Simdi FLASH bellek kullaniyoruz. 2 mikron incelikteki yollari resmin orijinal boyutunda gorebilirsiniz. Ust sagda silikon uzerine yazilmis 2732 ye de dikkatinizi cekerim.
Belki elektronikci olmayabilirsiniz, ama fotografla ugrasiyorsunuz. Milimetrenin 1000'de 1'i kalinligindaki bu yollari mikroskopsuz nasil cekersiniz? Burada amac bu. Ben SIGMA'nin 70 mm makro lensini kullandim. Arti tripod, arti LED isik kaynagi, arti zamanlanmis deklansor. Bunlarsiz bu resim olmazdi.
The microchip enclosure has a window that allowed the picture to be taken. The actual size of the chip is about 5 X 4mm
Some more EPROM's& some CCD & CMOS sensors. These are pretty much always made from Ceramics, only the cheaper variants are made from plastics.
Early EPROM's from the 70s sometimes used translucent windows instead of the more common transparrent windows. They were still made of the same Quartz material to pass the UV C that would erase the chips.
A cold was eara EPROM from the former Eastern Block. These are some of the few types of chips you can actualy see the chip contained inside. The reason for this is because they can be erased by UV light.
I used my new fashgun I got for christmass to add to the lighting with my trust Macro lens. The chip is sitting on some core memmory from the Ruskys, also cold war eara. The ferite cores & wires are also contained in a type of silicon resin.
Clik to enlarge!.
My very first attempt on focus-stacking. Made from 23 single pics stacked using Affinity photo, but I'm NOT entirely satisfied!
Lighting made with a SmallRig kit
This is an EEPROM-Chip with 32Kx8 memory. This means, that it can store 32768 bytes. It is a read only memory chip which is erasable with UV light. This is the reason the chip has a window and you can see it.
This EEPROM I found in one of my old rumpel crate with electronic parts (and once again with old memories). It is more than 25 years old and I used that EEPROMs for extenting my Commodore C64, to programming a controller for a plotter I had constructed in 1990 and many others things. I used to spend a lot of time with such things.
While searching a EEPROM for the theme, I also found the EPROM programmer for my C64 (which I don't have anymore since a long time).
32KB - What a time! HMM!
This historical chip is tagged twice: "copyright Intel 1974" and
"2708", the latter indicates an EPROM (memory chip) with 1K byte (!). This was very High Tech, 50 years ago! You would need around 2000+ such chips, to store ONE simple jpeg picture of today's cameras.
The curcuit has a (quartz-) glass window, which allows to erase the bits stored, using UV light. The picture shown here has been shot through this window (thus image quality is less than optimal).
Objective: Mitutoyo 2x, NA 0.055, Tube lense: 200mm (Nikon)
Illumination: Purely coaxial (white)
Macro Mondays weekly theme "Ethereal". Yasuhara Nanoha with Nanoha Tube extensions. Interior of UV-EPROM.
National Semiconductor Microprocessor NSC800
.
Successor of the I8080 / I8085 microprocessor family, as a variant of the Zilog Z80 CPU!
.
& Representation of the sharpness along the three coordinate axes of the object plane, respectively image plane.
__________________________________________________
Tilt-Bellows-M with E.Leitz Elmarit -M 2.8/90mm
Equipment for photo TS-Bellows ....
A short reminiscence on the motion picture film
"WAR GAMES" from the year 1983:
A STRANGE GAME.
THE ONLY WINNING MOVE
IS NOT TO PLAY.
.
THE ONLY WINNING MOVE IS -AND WOULD HAVE BEEN- NOT TO PLAY.
...
... lenses and bellows in the same age of manufacturing!
Equipment for photo TS-Bellows ....
Shot with my RICOH GXR with the kit 5.1-15.3mm 1:2.5-44 VC lens. Would normally use my Fuji for this, but why not lest this camera have its moment to shine.
For Macro Monday - Theme: Technology
EPROM - Erasable Programmable Read Only Memory.
Now, for the fellow geeks amongst us - what might I have done by removing the sticker, to expose the chip itself, and photograph it in natural (UV) light :-)
HMM
When I sat down across from Les Vadasz yesterday, I noticed something different — his first Mac. As an Intel co-founder (badge #3), he was the design manager for the world's first DRAM, EPROM and microprocessor.
I had to ask, with a bit of a snicker: “So, did you finally get to buy the computer you’ve always dreamed of having, now that there’s Intel inside?”
Les: “You’re god damn right!”
... sorry for the dust & spots...just test.
40 photos, stack is taken through the glass of the microchip.
4000px version
For Apple IIgs - RAM, EPROM, EEPROM - circa 1986
The story on this here:
www.bytecellar.com/2014/11/10/an-apple-ii-anecdote-fun-wi...
Images from Day 1 (June 13th and wee hours of June 14th). Checked out the Back to back sets with Space Jesus, Eprom and Shlump.
www.bonnaroo.com/experience/music/
Bonnaroo Music and Arts Festival
Manchester, Tennessee
Friday, June 14th, 2019
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A Z80-based single board computer, part of a training course in Microprocessor interfacing and programming.
Tech specs:
- Z80 @2,5 MHz
- 8K Eprom holding tiny OS
- 8K Eprom with cassette routines
- 2K RAM, expandable to 8K
- 8 LEDs numbers display
- PIO, CTC and lots of I/O lines
museo.scuolaradioelettra.it/elettronica-digitale-e-microp...
BEST VIEWED ORIGINAL SIZE
This is an Erasable Programmable Read Only Memory (EPROM for short). Our computers in 1980's used to employ these chips to hold the BIOS. Nowadays we use FLASH chips. The thinnest electrical tracks on the chip must be 2 microns thick. You can see them if you view the photo in original size. Did you notice 2732 (the part number) in the upper right corner of the chip?
Sorry if you are not into electronics. In this photography group my aim is to demonstrate that one can capture such submillimeter features by using macro lenses. I used a 70 mm SIGMA macro lens. Of course a tripod, timed shutter to prevent camera shake and a LED light source are necessary for a successful shot.
ORIJINAL BOYDA BAKMANIZI TAVSIYE EDERIM
Bu bir Silinip Programlanabilir Sirf Okunabilen Bellek. 80'li yillarda bilgisayarlarinizin BIOS'u bu chiplere yazilirdi. Simdi FLASH bellek kullaniyoruz. 2 mikron incelikteki yollari resmin orijinal boyutunda gorebilirsiniz. Ust sagda silikon uzerine yazilmis 2732 ye de dikkatinizi cekerim.
Uzgunum elektronikci olmayabilirsiniz, ama fotografla ugrasiyorsunuz. Milimetrenin 1000'de 1'i kalinligindaki bu yollari mikroskopsuz nasil cekersiniz? Burada amac bu. Ben SIGMA'nin 70 mm makro lensini kullandim. Arti tripod, arti LED isik kaynagi, arti zamanlanmis deklansor. Bunlarsiz bu resim olmazdi.
One of the last electric meter models produced by Sangamo before someone got the idea of adding an LCD to the register module.
The Time indicator is a pair of 7-segment LED displays that sequentially flash the time / date when prompted by activating a hidden switch. The backup battery and removable EPROM card are visible in the front as well.
These were introduced in the early 1980s when electric utilities began introducing 'time of use' rates as one way to encourage energy conservation during periods of peak usage.