Motherboard
About the Motherboard PCB
Motherboard is an open source PCB design by AndersBNielsen, published on GitHub. It is a 2-layer board measuring 144.8 × 94 mm, with 37 components from 19 distinct parts.
Other key parts include the 74LS573, 74HC132, 74HC245, HM62256BLP and R6507. By type, the board carries 12 resistors, 11 capacitors, 8 ICs, 3 connectors and 2 diodes.
Main components on the Motherboard
Motherboard bill of materials (BOM)
37 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS573 | DIP-20_W7.62mm_Socket | U1 |
| 2 | 74HC132 | DIP-14_W7.62mm_Socket | U3, U9 |
| 2 | 74HC245 | DIP-20_W7.62mm_Socket | U4, U5 |
| 1 | HM62256BLP | DIP-28_W15.24mm | U6 |
| 1 | R6507 | DIP-28_W15.24mm | U7 |
| 1 | NE555P | DIP-8_W7.62mm | U8 |
| 2 | Conn_01x20_Pin | PinHeader_1x20_P2.54mm_Vertical | J1, J3 |
| 1 | USB2.0_16P | USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J4 |
| 1 | 100k | Potentiometer_Alps_RK09Y11_Single_Horizontal | RV1 |
| 2 | 1N5819 | D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2 |
| 8 | 100nF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C2, C3, C4, C6, C7, C8, C9 |
| 1 | 1nF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C5 |
| 1 | 100uF | CP_Radial_D5.0mm_P2.00mm | C10 |
| 1 | 1uF | C_0805_2012Metric | C16 |
| 7 | 4k7 | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1, R39, R42, R43, R44, R45, R46 |
| 2 | 5k1 | R_0805_2012Metric | R13, R14 |
| 1 | 1k | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R40 |
| 1 | 220 | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R41 |
| 1 | 3k | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R51 |
Motherboard design files
The KiCad project lives in the AndersBNielsen/Toggle6502 repository on GitHub; these links point at the commit this page was built from.
Motherboard: common questions
How big is the Motherboard PCB?
The Motherboard measures 144.8 × 94 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Motherboard?
37 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the Motherboard design files?
From the AndersBNielsen/Toggle6502 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Motherboard design in my own project?
The repository has no license, so all rights stay with AndersBNielsen. Use it as a reference, and ask the author before reusing the design.
