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Std EditionZXcard II
Profile：ZX Spectrum SDcard
License: CERN Open Hardware License
Description
ZXCard is a hardware for ZX81 ZX spectrum* that allows you to load you favorite programs from a SD card instead of cassettes. It connects into the standard expansion port.
When booting the ZX, it boot from the Menu ROM included in the hardware. You can then select you file (TAP format) and it will be loaded into ram and executed. After reset you will be presented the menu again.
The hardware includes:
ROM for the menu and control
ROM switch to switch in and out Menu ROM and cartridge RAM
SD card interface with parallel to serial support
Kempston Joystick interface
Documents
| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 1u | C1,C2,C3,C4,C5,C6,C7 | C1 | 7 |
| 2 | JUMPER-2 | JP1 | 1X02 | 1 |
| 3 | JUMPER-3 | JP2 | 1X03 | 1 |
| 4 | 204-10UYC/S530-A3 | LED1 | LED-3MM/2.54 | 1 |
| 5 | ZX Spectrum edge connector | P1 | EDGE_CONNECTOR_ZX_SPECTRUM | 1 |
| 6 | 8x10K | R1 | 1X09_NO_SILK | 1 |
| 7 | 10k | R2,R7 | R3 | 2 |
| 8 | 2k2 | R3,R4,R5 | R3 | 3 |
| 9 | 3k3 | R6,R11,R12 | R3 | 3 |
| 10 | 1k | R8,R9,R10 | R3 | 3 |
| 11 | SPST_ON | S1 | PUSH BUTTON 6X6 90DEGREE | 1 |
| 12 | L78L33ACZ | U1 | TO92-INLINE | 1 |
| 13 | SN74LS541N | U4 | DIP20 | 1 |
| 14 | 27C256AG | U5 | DIP28-600 | 1 |
| 15 | MICRO SD SOCKET | U9 | MICRO SD SOCKET | 1 |
| 16 | DSUB9 | X1 | DB9 | 1 |
| 17 | HD74LS74AP | U2 | DIP14 | 1 |
| 18 | 74LS32 | U3,U16 | DIP14 | 2 |
| 19 | 74LS125 | U6 | DIP14 | 1 |
| 20 | HD74LS08P | U7 | DIP14 | 1 |
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