my_pcxt
ppsilv
A try to make a pc-xt boar with SRAM
Components (59)
| Reference | Value | Description |
|---|---|---|
| Q2 | 2N3904 | |
| U1,U7 | 74HCT00 | |
| U2 | 7805 | |
| U3 | PAL20L8 | |
| U4 | 8288 | |
| U5 | 8088 | |
| U6 | 74HCT245 | |
| U7 | 74LS00,8259A | |
| U8-U10 | 74HCT373 | |
| U11 | 8284,82C55A | |
| U12 | 74LS74 | |
| U13 | 74LS138 | |
| U14 | 16550 | |
| U15 | 8253 | |
| U16,U17,U19-U22 | 628128 | |
| U18 | SST39SF040 | |
| U23,U24 | DTE | |
| U25 | 74LS08 | |
| U26 | GAL16V8 | |
| U27 | AS6C4008-55PCN | |
| C1 | 1000 uF | |
| C2 | 330nF | |
| C2VS+1,C2VS+2,C2VS-1,C2VS-2,C19-C22,C25,C26 | 1uF | |
| C3-C16,C24 | 100nF | |
| C17 | 100uF | |
| C18 | 4.7uF | |
| C23 | 430nF | |
| CON1 | BARREL_JACK | |
| D1 | 1N4002 | |
| D2 | 5.6 V | |
| D3 | D | |
| D4 | Power | |
| D5,D10 | 1N5819 | |
| D6 | 1N4148 | |
| D7 | LED | |
| D11 | BT151-500RT.127 | |
| F1 | 30R160U | |
| H1-H4 | MountingHole_Pad | |
| J1-J4,J6 | Conn_02x40_Top_Bottom | |
| J5 | DE9_Plug | |
| J7 | Speaker | |
| JP1 | pin3 | |
| JP2,JP3 | ROM type sel | |
| JP4 | Flash Write Protect | |
| P1 | CH376S_0xE0 | |
| P2 | NMI | |
| P4 | Conn_01x02_Male | |
| P11 | ~{TEST} | |
| R1 | 270 | |
| R2 | 270R | |
| R5 | 4.7K | |
| R6 | 10K | |
| R7,R8 | 510 | |
| R9 | 1K | |
| R10 | 33R | |
| R13 | 1k | |
| SW2 | RESET_8088 | |
| X1 | 4.915200MHz | |
| Y2 | 6-30 MHz |