CPUandGlueLogic
About the CPUandGlueLogic PCB
CPUandGlueLogic is an open source PCB design by daveho, published on GitHub. It is a board measuring 150 × 90 mm, with 35 components from 18 distinct parts.
Other key parts include the 74HCT245, 74HCT365, MAX708, HD6809 and 74HCT00. By type, the board carries 14 capacitors, 11 ICs, 5 resistors, 2 connectors, 1 crystal and 1 switch.
It belongs with the dev boards & breakouts designs in this gallery.
From the project
Files and resources for DIY 8 bit computer video series
In this video, I evaluate possibilities for adding a display to the 8-bit computer, and perform some initial experiments to generate an 800x600 SVGA signal using an FPGA.
The FPGA board I am using is the Upduino 3.0, which uses the Lattice UltraPlus ICE40UP5K FPGA. One great advantage of this FPGA family is that it can be programmed using the Open Source IceStorm toolchain. I am using apio as a front-end for the FPGA tools.
Main components on the CPUandGlueLogic
CPUandGlueLogic bill of materials (BOM)
35 components, 18 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 74HCT245 | DIP-20_W7.62mm_Socket | U101, U102, U103 |
| 1 | 74HCT365 | DIP-16_W7.62mm_Socket | U104 |
| 1 | MAX708 | DIP-8_W7.62mm_Socket | U105 |
| 1 | HD6809 | DIP-40_W15.24mm_Socket | U106 |
| 1 | 74HCT00 | DIP-14_W7.62mm_Socket | U107 |
| 1 | 74HCT27 | DIP-14_W7.62mm_Socket | U108 |
| 3 | 74HCT138 | DIP-16_W7.62mm_Socket | U109, U110, U111 |
| 1 | Crystal | Crystal_HC18-U_Vertical | Y100 |
| 1 | Conn_02x40_Odd_Even | PinHeader_2x40_P2.54mm_Vertical | J001 |
| 1 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J100 |
| 1 | 1-1825027-2 | SW_1-1825027-2 | S100 |
| 1 | LED | LED_D5.0mm | D100 |
| 1 | 10μF | CP_Radial_D6.3mm_P2.50mm | C001 |
| 11 | 0.1 uF | C_Disc_D5.0mm_W2.5mm_P2.50mm | C101, C102, C103, C104, C105, C106, C107, C108 +3 |
| 2 | 22 pF | C_Disc_D3.8mm_W2.6mm_P2.50mm | C113, C114 |
| 1 | R | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R100 |
| 3 | 4k7 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R101, R102, R103 |
| 1 | 4k7 | R_Array_SIP9 | RN101 |
CPUandGlueLogic design files
The KiCad project lives in the daveho/DIY8bit repository on GitHub; these links point at the commit this page was built from.
CPUandGlueLogic: common questions
How big is the CPUandGlueLogic PCB?
The CPUandGlueLogic measures 150 × 90 mm and is 1.6002 mm thick.
How many components are on the CPUandGlueLogic?
35 components, from 18 distinct parts. The full bill of materials is listed on this page.
Where can I download the CPUandGlueLogic design files?
From the daveho/DIY8bit repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the CPUandGlueLogic design in my own project?
The repository has no license, so all rights stay with daveho. Use it as a reference, and ask the author before reusing the design.
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