Excallibur-64
Cptscorcher
A reimagining of the seminal Excalibur 64 Computer
Components (40)
| Reference | Value | Description |
|---|---|---|
| IC20 | 74HCT32 | |
| IC21 | 74HC74 | |
| IC23 | 74HC125 | |
| IC24 | 4521 | |
| IC25 | 74HC4053 | |
| U1,U10 | 74LS20 | Dual 4-input NAND |
| U3 | 74LS138 | Decoder 3 to 8 active low outputs |
| U4 | Z80A-DMA | Z8410 DMA Zilog Z8410 |
| U5 | WD2793 | |
| U6 | 74HC245 | Octal BUS Transceivers, 3-State outputs |
| U7 | 74LS243 | 4-bit Bus Transceiver |
| U8 | 74HC86 | Quad 2-input XOR |
| U9,U14 | 74LS06 | |
| U10,U11 | 74HCT174 | Hex D-type Flip-Flop, reset |
| U12 | 74LS123 | Dual retriggerable Monostable |
| U13 | 74LS367 | Hex Bus Driver 3-state outputs |
| C1-C5,C16,C19-C22,C25-C27,C30 | 100n | |
| C6,C7 | 100uF | Polarized capacitor |
| C23 | 5.5-65p | |
| C24 | 5p | |
| D1 | 1N4148 | |
| J1 | Precomp Select | Generic connector, double row, 02x03, counter clockwise pin numbering scheme (similar to DIP package numbering), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J2 | Mode | Generic connector, single row, 01x09, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J4 | Expansion | Generic connector, double row, 02x22, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| JP2 | TEST | |
| R1,R3,R7 | 1K | |
| R2 | 4K7 | |
| R3-R6 | 150Ω | |
| R8 | 10K | |
| RV1-RV4 | 50K | |
| TP1 | WD | |
| TP2 | TG43 | |
| TP3 | HDEN | |
| TP4 | 8 | |
| TP5 | DIRC | |
| TP6 | CLK | |
| TP7 | 5 | |
| TP8 | GND | |
| TP9 | 3 | |
| X5 | FDD |