These are the parts required to build SC523, v1.0, Z80 Programmable ‘ROM’ Card for Z50Bus.
| Reference | Qty | Component |
| PCB | 1 | SC523, v1.0, PCB |
| C1 to C5 | 5 | Capacitor, ceramic, 100 nF |
| JP1 to JP3 | 3 | Header, male, 1 x 3 pin, straight |
| Jumper shunts | 5 | Jumper shunt Two used to pad box header |
| LED1 | 1 | LED, green, 3mm, angled |
| P1 | 1 | Box header, 2 x 25 pin, angled, or Header, male, 2 x 25 pin, angled |
| R1 | 1 | Resistor, 1k, 0.25W |
| R2 and R3 | 2 | Resistor, 100k, 0.25W |
| SW1 | 1 | Switch, toggle, sub-miniature, SPDT |
| Spacer | 1 | Spacer, 10mm, M3, nylon |
| Screw (for spacer) | 1 | Machine screw, 6mm, M3 |
| U1 | 1 | Flash 128k bytes SST39SF010A (typically containing SCM F2) |
| U1 socket | 1 | 32-pin DIP socket |
| U2 | 1 | RAM 128k bytes AS6C1008 |
| U2 socket | 1 | 32-pin DIP socket |
| U3 | 1 | 74HCT4075 |
| U3 socket | 1 | 14-pin DIP socket |
| U4 | 1 | 74HCT259 |
| U4 socket | 1 | 16-pin DIP socket |
| U5 | 1 | 74HCT32 |
| U5 socket | 1 | 14-pin DIP socket |
Small Computer Central 