This is a full list of discrete components required to build the ZX80 excluding any hardware such as power supplies, nuts and bolts etc.
| Component | Type | Qty | Function | |
| IC1 | Z80A | 1 | Processor | |
| IC2 | ROM | 1 | 4K for ZX80, 8K for ZX81 ROM | |
| IC3/4 | RAM | 1 | 2K, 8K or 32K | |
| IC5 | 74LS373 | 1 | 8-bit transparent latch | Latches character data |
| IC6-8 | 74LS157 | 3 | 2 to 1 multiplexers | Routes CPU address lines or character data into ROM |
| IC9 | 74LS165 | 1 | Shift register. | Used for video and saving to tape. |
| IC10 | 74LS365 | 1 | Tristate buffer, six-bits | Keyboard (5-bit) and tape input (1-bit) buffer |
| IC11,12 | 74LS00 | 2 | AND gates | |
| IC13 | 74LS04 | 1 | ||
| IC14,15 | 74LS05 | 2 | Open-collector buffers | Forces nop codes above 32K |
| IC16 | 74LS10 | 1 | ||
| IC17 | 74LS32 | 1 | ||
| IC18,19 | 74LS74 | 2 | ||
| IC20 | 74LS86 | 1 | XOR gates | |
| IC21 | 74LS93 | 1 | Counter | Counts character line (0 to 7) |
| IC22 | 7805 | 1 | 5V1A regulator | |
| D3-10 | 1N4148 | 8 | Small signal diodes | Address lines drive keyboard |
| X1 | 6.5 MHz Xtal | 1 | or ceramic resonator | |
| C1-6,12,13 | 47nF | 8 | C12,13 used for tape circuit | |
| C8 | 22uF | 1 | ||
| C9,11,14,15 | 47pF | 4 | C14 used for tape circuit | |
| C10 | 1uF | 1 | ||
| R1, R3-11,18, R12,22,23 R27, R30, R34 |
1K | 16 | R1 pulls down tape input R3-11 isolate D0-7 from D0-7' R12,22,23 pull-up unused Z80 lines R27 in CPU clock driver R30 used for video out R34 used for tape circuit |
|
| R2,25 | 470R | 2 | ||
| R12, | 1 | |||
| R13-16,? | 47K | 6 | ||
| R19 | 2k2 | 1 | Impedance in RAM /CS | |
| R21 | 220K | 1 | ||
| R29 | 180R | 1 | ||
| R20 R32 |
330R | 2 | R20 pulls up the Z80 clock line R32 used for video out |
|
| R35 | 1M | 1 | R35 used for tape circuit | |
| SW1-40 | SPST Push | 40 | For keyboard | |
| Phono socket | 1 | For video out | ||
| 3.5mm Jack Socket | 2 | For tape recorder | ||
| Vero Board | 1 | Perhaps 100 x 220 mm? | ||
| 40 Pin DIL socket | 1 | For Z80A CPU | ||
| 28 Pin DIL socket | 1 | For ROM | ||
| 20 Pin DIL socket | 1 | |||
| 16 Pin DIL socket | 5 | |||
| 14 Pin DIL socket | 11 | |||
| Wire wrap cable | ||||
| MOD1 | UM1233 | 1 | UHF modulator |