LVDC
89Mods
Replica of the Launch Vehicle Digital Computer using 74-series logic
Components (19)
| Reference | Value | Description |
|---|---|---|
| U1,U7,U11,U16-U18,U33-U36 | 74HC574 | 8-bit Latch 3-state outputs |
| U2,U3,U5,U6,U9,U10,U13,U20-U26,U41-U45 | 74HCT157 | Quad 2 to 1 line Multiplexer |
| U4,U8,U12,U15,U46-U49 | 74HC244 | 8-bit Buffer/Line Driver 3-state |
| U14,U19,U31 | 74HC74 | Dual D Flip-flop, Set & Reset |
| U27,U28 | 74HC86 | Quad 2-input XOR |
| U29,U30 | 74HC08 | Quad And2 |
| U32,U51 | 74HCT32 | Quad 2-input OR |
| U37-U40 | 74HC688 | 8-bit magnitude comparator |
| U50 | 74AHC1G04 | |
| C1,C3,C6,C8-C11,C13-C15 | 100nF | |
| C2,C4,C5,C7,C12,C16,C17 | 10µF | Polarized capacitor |
| D1-D16 | LED | |
| J1 | TO_BACKPLANE | 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/) |
| J2 | ACCUMULATOR_OUT | Generic connector, double row, 02x15, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J3 | FROM_CTRL | Generic connector, double row, 02x06, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J4 | TO_MEMORY | Generic connector, double row, 02x12, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J5 | TO_FP | Generic connector, double row, 02x15, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| R1-R6,R8 | 1K | |
| R7,R9 | 4.7K |