Available, now:
A-ONE-EXTENDED

The new A-ONE-Extended enables "solderless playings" at the onboard breadboard. It comes with a total of 948 contact points and a contact-strip where all nedded A-ONE signals can be used. You have access to all Address/Data and Control signals of the 6502 CPU and the user-select-signals ($A000,$B000,$C000)




The A-ONE connected to a 7-INCH LCD FLAT SCREEN




Board Layout

Schematic Diagram Page1

Schematic Diagram Page2


A-ONE-Extended with additional breadboards available




Technical Datas:

• CPU: MOS TECHNOLOGIE 6502
• System-Clock: 1 MHZ
• RAM Memory: 32KB SRAM
• ROM Memory: 32KB
• Krusader in ROM at $F000
• A1 ASM in ROM at $9000
• WOZ BASIC in ROM at $E000
• $A000, $B000, $C000 available for User
• Video: 40 Chars/line at 24 Video-lines 50Hz or 60Hz
• Video-Frame-Rate (50/60Hz) can be selected via a Jumper
• Video Out: Composite positive Video, 75 Ohms
• Keyboard: PS2 Keyboardinterface
• RS232: 9-pin SubD Female, 2400 Bd
• Expansion: 3 x 2x22 Edge Connector
• Solderless Breadboard with 948 total contact points
• all Slot-Signals available for the Breadboard
• Powersupply via USB possible
• Powersupply: recommended single universal AC-DC Adapter
• Voltage: DC 9-12VDC
• Supply Current: 250 mA
• PCB Size: 200 x 160mm