[Coco] + 5v on a coco1

[Fred Ford]

As an oldtime 7400 designer VCC is the highest number pin, in the upper left. GND is in the lower right corner pin n/2 (pin 7, 8 or 10 for a 14, 16, or 20 pin IC). There are a couple exceptions but rarely used numbers.

Fred
On Thursday, April 2, 2020 Dave Philipsen <coco at maltedmedia.com> wrote:
Ok, I am more familiar with the diagrams in 99% of all data sheets where Vcc is top right and Gnd is bottom left with the aligning slot facing up.

Dave

> On Apr 2, 2020, at 2:07 PM, RETRO Innovations <go4retro at go4retro.com> wrote:
> 
> On 4/2/2020 1:57 PM, Dave Philipsen wrote:
>> Top left pin ?????
> 
> I'm assuming the readers is familiar with pin numbering on DIP ICs, where pin 1 is the dot, or the bottom left pin when the IC is viewed such that the indention in the side of the IC is on the left side.  Given that orientation, +5V should be the leftmost pin on the top row, where pin 1 is on the bottom row.
> 
> I didn't want to say pin 14 or 16 or 20, because it differs...
> 
> 
> 
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