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Ken Shirriff

Here's the 486 chip copyright, above a block of circuitry that holds the cache tags.

A closeup of the die. The metal layer has large numbers 80486. Next to it are a mask work symbol and copyright symbol, followed by the Intel logo and 1989.
21 August at 18:42 | Open on oldbytes.space
8 comments
Ken Shirriff

A closeup of the edge of the 486 showing bond pads with bond wires attached. Note the complex I/O driver block next to each bond pad. The pads in the center (without drivers) are two of the power and ground supplies. Note the thick vertical lines distributing power/ground to the chip.

A closeup of the die as described in the text.
21 August at 18:47 | Open on oldbytes.space
Ken Shirriff

Here's a Google Drive link to a higher resolution version: drive.google.com/file/d/1nQMtD
(I posted on Mastodon, but the resolution got crunched.)

A die photo of the 486 processor showing its complicated structure. The photo is yellowish-tan with darker regions for memory. Around the edges of the die, numerous bond wires are connected to the chip.
21 August at 18:49 | Open on oldbytes.space
Graham Spookyland🎃/Polynomial
Ken Shirriff

@gsuberland It was supposed to be 7155x10870 :(
I edited the post to add a Google Drive link; hopefully that's better.

21 August at 18:57 | Open on oldbytes.space
Graham Spookyland🎃/Polynomial

@kenshirriff ah yeah your server will have resized it then. weird final resolution though, I guess it limited based on compressed JPEG size?

21 August at 18:59 | Open on chaos.social
Dr. Eric Janusson
Ian
`Da Elf

@kenshirriff @drwho
I miss my 486DX/4 120 (94 ish?). VLB SCSI and video. Ran SCO Enterprise real good.

21 August at 20:04 | Open on mstdn.social
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