Nascom Newsletter |
Volume 3 · Numbers 5 & 6 · June 1984 |
| Page 52 of 69 |
|---|
Principle of
ROM Emulator
For Nascom
Parts List
| IC1 | CD4040B | CMOS Counter | + 16 – pin | Socket |
| IC2 | 74LS244 | Tri-State Non-Inv. Buffer | + 20 – " | " |
| IC3 | " | " | " | " |
| IC4 | " | " | " | " |
| IC5 | " | " | " | " |
| IC6 | 74LS02 | QUAD NOR GATE | + 14 – " | " |
| IC7 | 74LS00 | " NAND GATE | " | " |
| SKT1 | 16-PIN DIL SKT | |||
| SKT2 | 24- " " " | |||
| C1 | 100µF, 16V, Electrolytic Capacitor | |||
| C2, C3 | 10µF, Ceramic Capacitor | |||
| R2 | 10K 1/4W. Resistor | |||
| " off | 24 pin HEADER → 24-pin Header Cable, 12″ LONG | |||
| Page 52 of 69 |
|---|