Timeline for Why did CPU designers in the 70s prioritize reducing pin count?
Current License: CC BY-SA 3.0
8 events
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| Apr 3, 2018 at 15:18 | comment | added | CrossRoads | Things a got a lot smaller when the square packages with pins arranged in say 12x12 and 13x13 grid arrays (not all populated, maybe just the outer 3 rows) under the chip came out (precursor to the even smaller ball grid array packages). Those were nice to use. The huge DIP parts were kind of unwieldy. | |
| Apr 3, 2018 at 15:12 | comment | added | Tommy | If 5v is number one, the single-phase clock has to be consideration number two? | |
| Apr 3, 2018 at 10:40 | comment | added | Raffzahn | @Jules Not sure how this is related, mind to explain? Now for the Z80, the firstmost is for sure the single 5V supply. That had way more impact on design than any bus consideration. | |
| Apr 3, 2018 at 5:03 | comment | added | Jules | @Raffzahn - and yet, wasn't the primary reason the Z80 became so popular was that its interface was simpler, thus allowing computers using it to be built more cheaply? | |
| Apr 3, 2018 at 1:24 | history | edited | Brian H | CC BY-SA 3.0 |
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| Apr 3, 2018 at 1:22 | comment | added | Raffzahn | Intels 8086 bus design was mainly choosen for compatibility with existing 8080 perhipherals. | |
| Apr 3, 2018 at 1:18 | history | edited | Brian H | CC BY-SA 3.0 |
added 195 characters in body
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| Apr 3, 2018 at 1:12 | history | answered | Brian H | CC BY-SA 3.0 |