Register
About the Register PCB
Register is an open source PCB design by Shmerlard, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 60 components from 10 distinct parts.
Other key parts include the 74LS173 and 74LS245. By type, the board carries 16 diodes, 16 resistors, 10 connectors, 9 capacitors, 8 ICs and 1 switch.
From the project
a custom 16bit cpu
hi, my name is elad and Im an electrical engineering student in Ben gurion university. I designed a small 16bit cpu, with a mix of jdh8, src, msp430 and the Hack computer. this is still a work in progress, but so far it works.
I used logisim for the logic design, draw.io for the diagrams. in order to see the working cpu in logisim: you need to build version 3.9.0 from source here, then just open the .circ file.
Main components on the Register
Register bill of materials (BOM)
60 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 74LS173 | DIP-16_W7.62mm_Socket_LongPads | U1, U2, U4, U5 |
| 4 | 74LS245 | DIP-20_W7.62mm_Socket_LongPads | U3, U6, U7, U8 |
| 4 | Conn_01x02_Pin | JST_XH_S2B-XH-A-1_1x02_P2.50mm_Horizontal_fixed | J1, J2, J3, J10 |
| 2 | Conn_01x08_Pin | JST_XH_S8B-XH-A-1_1x08_P2.50mm_Horizontal | J4, J5 |
| 4 | Conn_01x04_Pin | PinHeader_1x04_P2.54mm_Vertical | J6, J7, J8, J9 |
| 1 | SW_SPDT | SW_Slide_SPDT_Angled_CK_OS102011MA1Q | SW2 |
| 16 | LED | LED_Rectangular_W3.0mm_H2.0mm | D0, D1, D2, D3, D4, D5, D6, D7 +8 |
| 8 | 10n | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2, C3, C4, C5, C7, C8, C9 |
| 1 | 1uF | C_Radial_D6.3mm_H11.0mm_P2.50mm | C6 |
| 16 | 1k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R0, R1, R2, R3, R4, R5, R6, R7 +8 |
Register design files
The KiCad project lives in the Shmerlard/SH8 repository on GitHub; these links point at the commit this page was built from.
Register: common questions
How big is the Register PCB?
The Register measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Register?
60 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the Register design files?
From the Shmerlard/SH8 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Register design in my own project?
The repository has no license, so all rights stay with Shmerlard. Use it as a reference, and ask the author before reusing the design.
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