Minimal-64x4-Home-Computer
slu4coder
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.
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slu4coder
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.
| Dual 4 input NOR gate |
| U14,U18 | 74HC193 | Synchronous 4-bit Up/Down (2 clk) counter |
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| U15,U19,U24,U26-U30,U32,U48,U49,U52,U53 | 74HC161 | Synchronous 4-bit programmable binary Counter |
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| U16,U17 | 74HC595 | 8-bit serial in/out Shift Register 3-State Outputs |
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| U21 | SST39SF040 HSB |
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| U22,U43,U47,U51 | 74HC157 | Quad 2 to 1 line Multiplexer |
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| U23 | SST39SF040 MSB |
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| U25 | SST39SF040 LSB |
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| U31 | SST39SF040 512KB SSD |
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| U33,U42,U44,U46,U50,U56,U58 | 74HC245 | Octal BUS Transceivers, 3-State outputs |
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| U34 | AS6C1008 SRAM |
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| U35 | 74HC166 | Shift Register 8-bit, parallel load |
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| U36 | AS6C62256 VRAM |
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| U37,U39 | 74HC590 | 8-bit Binary Counter with Output Register 3-State Outputs, SOIC-16/TSSOP-16 |
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| U38,U40,U41 | 74HC574 | 8-bit Register, 3-state outputs |
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| U54,U57 | 74HC86 | Quad 2-input XOR |
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| U55,U59 | 74HC283 | 4-bit full Adder |
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| U61,U63 | 74HC08 | Quad And2 |
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| C1-C20 | 100nF | Unpolarized capacitor, small symbol |
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| C32,C33 | 22p | Unpolarized capacitor, small symbol |
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| H1-H4 | M2 | Mounting Hole without connection |
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| J1 | UART |
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| J2 | PS/2 | 6-pin Mini-DIN connector |
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| J3 | EXPANSION PORT | Generic connector, double row, 02x16, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J4 | VGA |
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| J5 | POWER | Generic connector, double row, 02x03, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
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| R1,R3-R5 | 4.7k | Resistor |
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| R2,R9-R22,R27,RN1 | 470 | 8 resistor network, star topology, bussed resistors, small symbol,Resistor,Resistor, small symbol |
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| R6,R26 | 150 | Resistor |
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| R7,R8 | 68 | Resistor |
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| R25 | 100 | Resistor |
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| SW1 | RESET | Push button switch, generic, two pins |
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| X1 | 16MHz |
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