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Standard

1.Easy to use and quick to get started

2.The process supports design scales of 300 devices or 1000 pads

3.Supports simple circuit simulation

4.For students, teachers, creators

Profession

1.Brand new interactions and interfaces

2.Smooth support for design sizes of over 30,000 devices or 100,000 pads

3.More rigorous design constraints, more standardized processes

4.For enterprises, more professional users

Std EditionZXcard II

Profile:ZX Spectrum SDcard

License: CERN Open Hardware License

Published Time:2017-01-06 02:52:25
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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

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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