Accessible pinout for 8080

Part description: 8-bit N-channel Microprocessor, DIP-40

Package description: This package has two parallel rows of pins extending down from opposite edges of the chip.

There should be a semicircular notch that you can feel in the middle of one of the package's shorter bare edges. With the pins facing downward and the chip oriented so notch is on the side of the chip furthest from you, Pin 1 will be in the far left corner of the chip.

Pins are numbered counter-clockwise. Numbers increase from the far left corner to the near left corner. They then continue on the right side, increasing from the near right corner to the far right corner. Thus the highest number pin is to the right of pin 1.

Pin assignments

Left side (numbering starts at far end)

Pin Signals
1A10
2GND
3D4
4D5
5D6
6D7
7D3
8D2
9D1
10D0
11-5V
12RESET
13HOLD
14INT
15ϕ2
16INTE
17DBIN
18WR (active low)
19SYNC
20+5V

Right side (numbering starts at near end)

Pin Signals
21HLDA
22ϕ1
23READY
24WAIT
25A0
26A1
27A2
28+12V
29A3
30A4
31A5
32A6
33A7
34A8
35A9
36A15
37A12
38A13
39A14
40A11

This pinout was automatically generated from the KiCAD symbol library revision 164574.

It is possible that there may be a mistake in the source data leading to wrong information on this page.