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99926005.JPG (323072 bytes)wpe3C.jpg (52502 bytes)The Incredible Shrinking Chip

The two EPROM (Eraseable Programmable Read-Only Memory) chips below are identical in capacity and speed, but the one on the left is approximately ten years older.
A nice example of how much smaller chips have become in the last decade..!

wpe2E.jpg (23920 bytes)

It's quite a while since I actually bought an EPROM (rather than scavenging one from dead equipment).... I was somewhat surprised when I recently received a new 2 megabit (256Kbyte) chip to see how much smaller the die was compared to devices I'd previously seen.

Estimated die areas : 11.2 x 7.2mm = 80.64mm2, 3.3 x 2.5mm = 8.25mm2

(The writing on the new one was laser-marked so I had to tweak the image to make it readable)


99926005.JPG (323072 bytes)wpe3C.jpg (52502 bytes)


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