vRETRO's VR177X-02 WD1770 WD1772 VL1772 Modern Replacement

Available Now at :  ToTs RETRO

The VR177X-02 is a modern plugin replacement for the WD1770, WD1772, VL1772 floppy drive controller.

VR177X-02 Features include:

• Plugin replacement.
• Low profile 28 pin DIL footprint.
  
• Provides the same functionality as the original WD1770/WD1772/VL1772 and more.
• Supports clock frequencies between 8MHz and 32MHz (SD/DD/HD/ED).
• Auto HD switching.
• Full 5V TTL IO interface.
• Low power consumption.
  

The VR177X-02 has been successfully tested on the following systems:

• Atari ST(E) including AJAX support
• Atari 8-bit computers with the XF551 and clones
• Atari 8-bit computers with ATR8000 clones (Sally-2)
• Commodore 1581
• TI-99/4A with the Myarc Floppy Disk Controller
• TI-99/4A with the 838-Floppy Disk Controller 
• Spectrum MGT Disciple
• Spectrum PlusD
• Spectrum Opus Discovery
• Acorn Electron Advanced Plus 3
• Acorn Electron Pegasus 400
• BBC variants with the WD1770/2 floppy controller
• Sinclair QL WD1770/2 based floppy interfaces (and clones)
• Sinclair QL Sandy Disk.
• Bosman 8

The VR177X-02 is one of several chip replacements I make for retro computer enthusiasts including the VR40007 and VR40010 for the Amstrad CPC, an AY-3-8912 replacement (including Turbo Sound model), the vLA81 for the Sinclair ZX81, the vLA82 for the Sinclair Spectrum 48K, the vLA128 for the Sinclair Spectrum 128K (Toastrack) and +2 (Grey case) and the vLA1 for the Sinclair ZX Interface 1.

 

Any Questions Please Do Not Hesitate to ask.