sap-plus
TomNisbet
Simple As Possible (SAP) 8-bit computer with a modular PCB design
Components (40)
| Reference | Value | Description |
|---|---|---|
| U1 | 74LS00 | quad 2-input NAND gate |
| U2,U3 | 74LS245 | Octal BUS Transceivers, 3-State outputs |
| U4 | 74LS74 | Dual D Flip-flop, Set & Reset |
| U5,U6 | 74LS193 | Synchronous 4-bit Up/Down (2 clk) counter |
| U7 | NE555P | Precision Timers, 555 compatible, PDIP-8 |
| U8 | 74LS10 | Triple 3-input NAND |
| C1-C8,C10 | 0.1uF | Unpolarized capacitor, small symbol |
| C9 | 0.01uF | Unpolarized capacitor, small symbol |
| D1 | A0 | |
| D2 | A1 | |
| D3 | A2 | |
| D4 | A3 | |
| D5 | A4 | |
| D6 | A5 | |
| D7 | A6 | |
| D8 | A7 | |
| D9 | MAR | |
| D10 | RAM | |
| D11 | ACTIVE | |
| J1 | Conn_02x10_Odd_Even | Generic connector, double row, 02x10, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J2 | 5V POWER | |
| R1-R3,R9,R10,RN2 | 10K | 8 resistor network, star topology, bussed resistors, small US symbol |
| R4 | 1K | Resistor, small US symbol |
| R5 | 1M | Resistor, small US symbol |
| R6 | R-GRN | |
| R7 | R-RED | |
| R8 | R-WHT | |
| RN1 | 4.7K | 8 resistor network, star topology, bussed resistors, small US symbol |
| SW1 | SD0 | Single Pole Single Throw (SPST) switch |
| SW2 | SD1 | Single Pole Single Throw (SPST) switch |
| SW3 | SD2 | Single Pole Single Throw (SPST) switch |
| SW4 | SD3 | Single Pole Single Throw (SPST) switch |
| SW5 | SD4 | Single Pole Single Throw (SPST) switch |
| SW6 | SD5 | Single Pole Single Throw (SPST) switch |
| SW7 | SD6 | Single Pole Single Throw (SPST) switch |
| SW8 | SD7 | Single Pole Single Throw (SPST) switch |
| SW9 | RESET | Push button switch, generic, two pins |
| SW10,SW13,SW14 | SW_SPDT | Switch, single pole double throw |
| SW11 | SET | Push button switch, generic, two pins |
| SW12 | CLOCK |