Program counter
About the Program counter PCB
Program counter is an open source PCB design by jerry-kerenzikov, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 100 × 51.9 mm, with 61 components from 12 distinct parts.
Other key parts include the 74HC161, 74HC245 and 74LVC2G14. By type, the board carries 23 resistors, 13 ICs, 13 capacitors, 5 connectors, 5 diodes and 2 LEDs.
From the project
Project files for Ytterbium modular CPU platform and Yprog programming tool
Main components on the Program counter
Program counter bill of materials (BOM)
61 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 74HC161 | SOP-16_4.4x10.4mm_P1.27mm | U1, U2, U3, U4 |
| 6 | 74HC245 | TSSOP-20_4.4x6.5mm_P0.65mm | U5, U6, U7, U8, U9, U10 |
| 3 | 74LVC2G14 | SOT-23-6 | U11, U12, U13 |
| 1 | Conn_02x20_Top_Bottom | PinHeader_2x20_P2.54mm_Horizontal | J1 |
| 2 | xR | R_0603_1608Metric | J2, J3 |
| 1 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | Conn_01x03 | PinHeader_1x03_P2.54mm_Vertical | J5 |
| 2 | B08 | LED_BAR_08 | BAR1, BAR2 |
| 5 | LED | LED_0805_2012Metric | D1, D2, D3, D4, D5 |
| 13 | 100n | C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C7, C8 +5 |
| 21 | R_US | R_0603_1608Metric | R1, R2, R3, R6, R7, R8, R9, R10 +13 |
| 2 | 10k | R_0603_1608Metric | R4, R5 |
Program counter design files
The KiCad project lives in the jerry-kerenzikov/ytterbium 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 100 × 51.9 mm, has 4 copper layers and is 1.62516 mm thick.
How many components are on the Program counter?
61 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the Program counter design files?
From the jerry-kerenzikov/ytterbium repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Program counter design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which jerry-kerenzikov chose for the repository.
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