| U1 | W65C02SxP | 8-bit CMOS General Purpose Microprocessor, DIP-40 |
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| U2 | 28C256 | Paged Parallel EEPROM 256Kb (32K x 8), DIP-28/SOIC-28 |
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| U3 | W65C22SxP | CMOS Versatile Interface Adapter (VIA), 20-pin I/O, 2 Timer/Counters, DIP-40 |
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| U4 | ATF22V10CQZ-20PU | EEPLD - Electronically Erasable Programmable Logic Devices 20 ns 24 I/O Pins 10 macorcells 10 reg |
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| U5 | 74HC11 | Triple 3-input AND |
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| U6 | 62256 | 32,768-word × 8-bit High Speed CMOS Static RAM, 70ns, DIP-28 |
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| DS1 | 16x2 LCD | LCD 16x2 Alphanumeric , 8 bit parallel bus, 5V VDD |
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| R1 | 3.3k | Resistor, small symbol |
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