Microinstruction counter
About the Microinstruction counter PCB
Microinstruction 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 × 30 mm, with 26 components from 12 distinct parts.
Other key parts include the 74HC245, 74HC161, 74LVC1G11 and 74LVC2G14. By type, the board carries 9 resistors, 5 ICs, 5 connectors, 5 capacitors, 1 LED and 1 diode.
From the project
Project files for Ytterbium modular CPU platform and Yprog programming tool
Main components on the Microinstruction counter
Microinstruction counter bill of materials (BOM)
26 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC245 | TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 2 | 74HC161 | SOP-16_4.4x10.4mm_P1.27mm | U2, U3 |
| 1 | 74LVC1G11 | SOT-23-6 | U4 |
| 1 | 74LVC2G14 | SOT-23-6 | U7 |
| 1 | Conn_02x07_Top_Bottom | PinHeader_2x07_P2.54mm_Horizontal | J1 |
| 2 | xR | R_0603_1608Metric | J2, J3 |
| 2 | Conn_01x03 | PinHeader_1x03_P2.54mm_Vertical | J4, J5 |
| 1 | B08 | LED_BAR_08 | BAR1 |
| 1 | LED | D_0805_2012Metric | D1 |
| 5 | 100n | C_0603_1608Metric | C1, C2, C3, C4, C5 |
| 7 | R_US | R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R8 |
| 2 | 10k | R_0603_1608Metric | R7, R9 |
Microinstruction 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.
Microinstruction counter: common questions
How big is the Microinstruction counter PCB?
The Microinstruction counter measures 100 × 30 mm, has 4 copper layers and is 1.62516 mm thick.
How many components are on the Microinstruction counter?
26 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the Microinstruction 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 Microinstruction 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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