2 layers150 × 100 mm
Memory loader
TomNisbet/sap-plus
Simple As Possible (SAP) 8-bit computer with a modular PCB design
66 parts11MIT
2 layers102 × 96 mm
Memory loader interface
TomNisbet/sap-plus11Simple As Possible (SAP) 8-bit computer with a modular PCB design
- Size
- 102 × 96 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 93
- Pads
- 170
- Tracks, vias
- 105, 6
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 4 Oct 2024
- Updated
- 24 Feb 2026
Overview
Memory loader interface is an open-source printed circuit board by TomNisbet, from the TomNisbet/sap-plus repository on GitHub, published under the MIT licence. It is a 2-layer board of 102 × 96 mm with 10 parts on 93 nets, routed with 105 tracks and 6 vias.
It is built around the 74LS245SC. Its parts include 6 connectors, 2 capacitors and 2 ICs. It belongs with the retro computing and games and interfaces and adapters boards of this library.
Main components
1README
schematics/output/README.mdOutput Register Module schematics
created with KiCad 8.0
Changelog
1.0
- Initial version
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 0.1uF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2 |
| 2 | 74LS245 | Package_DIP:DIP-20_W7.62mm | U1, U2 |
| 2 | Bus | Connector_PinHeader_2.54mm:PinHeader_1x40_P2.54mm_Vertical | J1, J2 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J6 |
| 1 | Conn_02x06 | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J7 |
| 1 | Conn_02x10_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x10_P2.54mm_Vertical | J4 |
| 1 | IC-BR | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J3 |
Questions
How big is the Memory loader interface PCB?
It measures 102 × 96 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Memory loader interface use?
10 parts, built around the 74LS245SC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Memory loader interface KiCad files?
From the TomNisbet/sap-plus repository on GitHub, at the commit this page was made from: the board is schematics/memory-loader-interface/memory-loader-interface.kicad_pcb and its schematic schematics/ab-register/ab-register.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Memory loader interface design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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