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Board NEDONAND-5

A project log for NEDONAND homebrew computer

NEDONAND is 8-bit homebrew computer entirely built out of many 74F00 chips (2-input NAND gates)

SHAOSSHAOS 02/27/2016 at 05:440 Comments

This is 5th board for NEDONAND - 8-bit register (transparent latch) with active "1" strobe with 8 straight outputs and 8 inverted outputs:

Board will be produced by OSHPark:

Pin description:

1.1) GND - ground
1.2) D0 - input bit 0 
1.3) D1 - input bit 1
1.4) D2 - input bit 2
1.5) D3 - input bit 3
1.6) D4 - input bit 4
1.7) D5 - input bit 5
1.8) D6 - input bit 6
1.9) D7 - input bit 7
1.10) STB - strobe (active "1")
1.11) NC  - not connected
1.12) VCC - power +5V
2.1) Q0 - output stored bit 0
2.2) /Q0 - output inverted stored bit 0
2.3) Q1 - output stored bit 1
2.4) /Q1 - output inverted stored bit 1
2.5) Q2 - output stored bit 2
2.6) /Q2 - output inverted stored bit 2
2.7) Q3 - output stored bit 3
2.8) /Q3 - output inverted stored bit 3
2.9) Q4 - output stored bit 4
2.10) /Q4 - output inverted stored bit 4
2.11) Q5 - output stored bit 5
2.12) /Q5 - output inverted stored bit 5
2.13) Q6 - output stored bit 6
2.14) /Q6 - output inverted stored bit 6
2.15) Q7 - output stored bit 7
2.16) /Q7 - output inverted stored bit 7
This board will be used to implement NEDONAND registers A,B,C,D,E and T (temporary register) - one board per register.

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