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techav-homebrew
Minimal 6502 SBC based on Grant Searle's 8-chip 6502 computer
| Reference | Value | Description |
|---|---|---|
| U1 | MC68B50 | Asynchronous Communications Interface Adapter 2MHz, DIP-40 |
| U2 | MAX232 | Dual RS232 driver/receiver, 5V supply, 120kb/s, 0C-70C |
| U3 | 74LS00 | quad 2-input NAND gate |
| U4 | 74LS04 | Hex Inverter |
| U5 | CY62256 | 256K (32K x 8) Static RAM, 70ns, DIP-28 |
| U6 | 27128 | UV Erasable EPROM 128 KiBit, [Obsolete 2000-11] |
| U7 | R6502 | |
| U8 | FT230XS | Full Speed USB to Basic UART, SSOP-16 |
| C1-C5 | 1uF | Unpolarized capacitor, small symbol |
| C6 | 10uF | Polarized capacitor, small US symbol |
| C7 | 100nF | Unpolarized capacitor, small symbol |
| J1 | DE9_Plug | 9-pin male plug pin D-SUB connector |
| J2 | USB_B | USB Type B connector |
| J3 | Barrel_Jack_Switch | DC Barrel Jack with an internal switch |
| J4 | Conn_02x20_Odd_Even | Generic connector, double row, 02x20, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J5 | Conn_01x14 | Generic connector, single row, 01x14, script generated (kicad-library-utils/schlib/autogen/connector/) |
| R1,R2,R5-R8 | 2K2 | Resistor, small US symbol |
| R3,R4 | 27R | Resistor, small US symbol |
| SW1 | SW_Push | Push button switch, generic, two pins |
| X1 | 1.8432MHz | Crystal Clock Oscillator, DIP8-style metal package |