Tuesday 31 January 2012

Microcontroller / EPROM Macro Photos

A couple of the dev boards I've been experimenting with have a fused quartz window leaving the chip visible, offering the perfect opportunity to take a few close up photos.

The 87C752-5F28 is a Harvard architecture microcontroller based on Intel's 80C51 with 2K EPROM and 64 bytes of RAM.

The M27C4001-15F6 EPROM is a non-volatile 512K memory chip. The memory is normally written with an EPROM programmer and erased using ultraviolet light.


  1. That is fascinating. I love the closeup of the chip, especially that first picture.

  2. Veri interesting info and pics!!! i always want to open a lot of informatic stuff, im very curious jaja

  3. nice shot! cool, contents. keep it up!


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