iss000/OricExos5Multi Oric Mega Demo.
Expansion is an open-source printed circuit board by iss000, from the iss000/OricExos repository on GitHub. It is a 2-layer board of 91.7 × 48 mm with 27 parts on 85 nets, routed with 673 tracks and 22 vias.
It is built around the 74LS245SC, 74LS00SC and 74LS123FP-E, with the 74LS175PC and 74LS20P-E among its other parts. Its parts include 7 capacitors, 6 ICs, 5 resistors, 5 connectors and 4 diodes. It belongs with the retro computing and games boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100n | Capacitors_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C3, C4, C5, C6, C7 |
| 3 | D | Diodes_THT:D_A-405_P7.62mm_Horizontal | D1, D2, D3 |
| 2 | 470 | Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R4, R5 |
| 1 | 1k0 | Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1 |
| 1 | 220p | Capacitors_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C1 |
| 1 | 330p | Capacitors_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C2 |
| 1 | 4k7 | Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R2 |
| 1 | 680 | Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3 |
| 1 | 74LS00 | Housings_DIP:DIP-14_W7.62mm_Socket_LongPads | U2 |
| 1 | 74LS123 | Housings_DIP:DIP-16_W7.62mm_Socket_LongPads | U3 |
| 1 | 74LS138 | Housings_DIP:DIP-16_W7.62mm_Socket_LongPads | U1 |
| 1 | 74LS175 | Housings_DIP:DIP-16_W7.62mm_Socket_LongPads | U5 |
| 1 | 74LS20 | Housings_DIP:DIP-14_W7.62mm_Socket_LongPads | U4 |
| 1 | 74LS245 | Housings_DIP:DIP-20_W7.62mm_Socket_LongPads | U6 |
| 1 | EXI | Connectors:CONN_EDGE_34 | P1 |
| 1 | EXO | Pin_Headers:Pin_Header_Straight_Mirorred_2x17_Pitch2.54mm | P2 |
| 1 | LED | LEDs:LED_D3.0mm | D5 |
| 1 | PPI | Connectors:CONN_EDGE_20 | J2 |
| 1 | PPO | Connectors_Multicomp:Multicomp_MC9A12-2034_2x10x2.54mm_Straight | J3 |
| 1 | VID | Pin_Headers:Pin_Header_Straight_2x05_Pitch2.54mm | J1 |
It measures 91.7 × 48 mm and has 2 copper layers, 1.6 mm thick.
27 parts, built around the 74LS245SC, 74LS00SC, 74LS123FP-E and 74LS175PC. 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.
From the iss000/OricExos repository on GitHub, at the commit this page was made from: the board is hardware/Expansion/expansion.kicad_pcb and its schematic hardware/Expansion/expansion.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask iss000 before reusing the design.
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