General purpose register halfsize
About the General purpose register halfsize PCB
General purpose register halfsize is an open source PCB design by ifilot, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 48.3 × 27.9 mm, with 22 components from 11 distinct parts.
Other key parts include the 74HC00, 74HC273 and 74HC245. By type, the board carries 10 diodes, 4 resistors, 3 ICs, 3 capacitors and 2 connectors.
From the project
Modular 8-bit computer built with TTL logic units to create a "Simple as Possible" system
This project showcases the design and construction of a modular 8-bit computer built with TTL logic units. The core principle behind the project is to create a "Simple as Possible" system, focusing on simplicity, modularity, and compactness.
- TTL Logic-Based Design: The computer is built using traditional TTL (Transistor-Transistor Logic) components, adhering to a fundamental, hands-on approach to computing. - Modular Architecture: Designed for modularity, each functional unit (ALU, registers, memory, control logic, etc.) is implemented as a separate module, allowing for easy debugging…
Main components on the General purpose register halfsize
General purpose register halfsize bill of materials (BOM)
22 components, 11 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC00 | SO-14_3.9x8.65mm_P1.27mm | U1 |
| 1 | 74HC273 | SOIC-20W_7.5x12.8mm_P1.27mm | U2 |
| 1 | 74HC245 | SOIC-20W_7.5x12.8mm_P1.27mm | U3 |
| 1 | Conn_01x18_Male | PinHeader_1x18_P2.54mm_Vertical | J1 |
| 1 | SIGNALS | PinHeader_1x10_P2.54mm_Vertical | J2 |
| 8 | LED_Small | LED_0805_2012Metric | D1, D2, D3, D4, D5, D6, D7, D8 |
| 1 | IN | LED_0805_2012Metric | D9 |
| 1 | OUT | LED_0805_2012Metric | D10 |
| 3 | C | C_0805_2012Metric | C1, C2, C3 |
| 2 | 330 | R_0805_2012Metric | R1, R2 |
| 2 | 220 | R_Array_Convex_4x0603 | RN1, RN2 |
General purpose register halfsize design files
The KiCad project lives in the ifilot/sap-smd repository on GitHub; these links point at the commit this page was built from.
General purpose register halfsize: common questions
How big is the General purpose register halfsize PCB?
The General purpose register halfsize measures 48.3 × 27.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the General purpose register halfsize?
22 components, from 11 distinct parts. The full bill of materials is listed on this page.
Where can I download the General purpose register halfsize design files?
From the ifilot/sap-smd repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the General purpose register halfsize design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which ifilot chose for the repository.
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