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Program counter

bmichini·nandirl·hardware/program_counter/program_counter.kicad_pcb

Program counter PCB layout, top view — open source board by bmichini
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About the Program counter PCB

Program counter is an open source PCB design by bmichini, published on GitHub. It is a 4-layer board measuring 175.3 × 72.4 mm, with 110 components from 5 distinct parts.

Other key parts include the SN74HCS00PWR. By type, the board carries 76 ICs, 16 diodes, 16 resistors and 2 capacitors.

From the project

Real-life open hardware implementation of the nand2tetris “Hack” computer

Main components on the Program counter

SN74HCS00PWR

Program counter bill of materials (BOM)

110 components, 5 distinct parts — part numbers from the project's BOM.

QtyPartRefs
76
SN74HCS00PWR
U1, U2, U3, U4, U5, U6, U7, U8 +68
16
LED
D1, D2, D3, D4, D5, D6, D7, D8 +8
1
100UF
100uF
C1
1
100NF
100nF
C2
16
1K
R1, R2, R3, R4, R5, R6, R7, R8 +8

Program counter design files

The KiCad project lives in the bmichini/nandirl repository on GitHub; these links point at the commit this page was built from.

Program counter: common questions

How big is the Program counter PCB?

The Program counter measures 175.3 × 72.4 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Program counter?

110 components, from 5 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Program counter design files?

From the bmichini/nandirl repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Program counter design in my own project?

The repository has no license, so all rights stay with bmichini. Use it as a reference, and ask the author before reusing the design.

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