Difference between revisions of "USB FDD@1306 USB floppy adapter"

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(Created page with "== USB_FDD@1306 == 200px|thumb|Front of board This is an adapter for using full-size 3.5" floppy drives as USB floppy drives. It uses an unknown...")
 
 
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== USB_FDD@1306 ==
==USB_FDD@1306==
[[File:Usb_fdd@1306_orig.jpg|200px|thumb|Front of board]]
[[File:Usb_fdd@1306_orig.jpg|200px|thumb|Front of board]]
This is an adapter for using full-size 3.5" floppy drives as USB floppy drives.
This is an adapter for using full-size 3.5" floppy drives as USB floppy drives.
It uses an unknown 24-pin TSOP/TSSOP? microcontroller.
It uses an unknown 24-pin TSOP/TSSOP? microcontroller. The chip has "6520" on the underside.
The oscillator on the board is 12 mhz.
The oscillator on the board is 12 mhz.

It's sometimes listed as "UPC 699920449831"


[[File:Usb_fdd@1306_Front.jpg|200px|thumb|Desoldered board]]
[[File:Usb_fdd@1306_Front.jpg|200px|thumb|Desoldered board]]
[[File:Usb_fdd@1306_back.jpg|200px|thumb|Rear of board]]
[[File:Usb_fdd@1306_back.jpg|200px|thumb|Rear of board]]
[[File:Usb_fdd@1306_chip.jpg|200px|thumb|Underside of chip]]




=== Chip pinout===
===Chip pinout===


{| class="wikitable"
{| class="wikitable"
| C4? || 1 || 24 || DIRECTION
|C4?||1||24||DIRECTION
|-
|-
| LED? || 2 || 23 || VCC +5v
|LED?||2||23||VCC +5v
|-
|-
| R3 || 3 || 22 || N/C
|R3||3||22||N/C
|-
|-
| Drive Select || 4 || 21 || N/C
|Drive Select||4||21||N/C
|-
|-
| Motor On || 5 || 20 || Wgate
|Motor On||5||20||Wgate
|-
|-
| C3? || 6 || 19 || Write Protect
|C3?||6||19||Write Protect
|-
|-
| USB Data+ || 7 || 18 || Track 0
|USB Data+||7||18||Track 0
|-
|-
| USB Data- || 8 || 17 || DiskChange
|USB Data-||8||17||DiskChange
|-
|-
| RDATA || 9 || 16 || Index
|RDATA||9||16||Index
|-
|-
| WDATE || 10 || 15 || HeadSelect
|WDATE||10||15||HeadSelect
|-
|-
| VSS || 11 || 14 || STEP
|VSS||11||14||STEP
|-
|-
| OSC1 || 12 || 13 || OSC2
|OSC1||12||13||OSC2
|}
|}


Line 42: Line 45:
for "Drive Select" it's hooked up to DS1/DS2/DS3/DS4.
for "Drive Select" it's hooked up to DS1/DS2/DS3/DS4.


=== Links ===
===Functionality===

* [http://old.pinouts.ru/HD/InternalDisk_pinout.shtml|Floppy Disk connector pinout]
I have an identical (presumably: I need to open my case up and double-check) unit installed in my [[rainbow floppy|main PC]].
* [https://www.ebay.com/itm/34pin-1-44mb-floppy-connecter-to-USB-adapter-cable-34-pin/233051035241|ebay auction] where I bought this, on 12/28/2018

It identifies itself to windows as "TEAC USB UF000x USB Device", [https://usb-ids.gowdy.us/read/UD/0644/0000 VID=0644 PID=0000].

The drive doesn't support DD (720k) disks or 1.68mb DMF disks.

===Links===

*[http://old.pinouts.ru/HD/InternalDisk_pinout.shtml Floppy drive connector pinout]
*[https://www.ebay.com/itm/34pin-1-44mb-floppy-connecter-to-USB-adapter-cable-34-pin/233051035241 ebay auction] where I bought this, on 12/28/2018

Latest revision as of 11:23, 13 February 2019

USB_FDD@1306

Front of board

This is an adapter for using full-size 3.5" floppy drives as USB floppy drives. It uses an unknown 24-pin TSOP/TSSOP? microcontroller. The chip has "6520" on the underside. The oscillator on the board is 12 mhz.

It's sometimes listed as "UPC 699920449831"

Desoldered board
Rear of board
Underside of chip


Chip pinout

C4? 1 24 DIRECTION
LED? 2 23 VCC +5v
R3 3 22 N/C
Drive Select 4 21 N/C
Motor On 5 20 Wgate
C3? 6 19 Write Protect
USB Data+ 7 18 Track 0
USB Data- 8 17 DiskChange
RDATA 9 16 Index
WDATE 10 15 HeadSelect
VSS 11 14 STEP
OSC1 12 13 OSC2


Note: It seems to use the sorta-compatible Shugart interface, as it uses pin 6 which is N/C in the IBM format.

for "Drive Select" it's hooked up to DS1/DS2/DS3/DS4.

Functionality

I have an identical (presumably: I need to open my case up and double-check) unit installed in my main PC.

It identifies itself to windows as "TEAC USB UF000x USB Device", VID=0644 PID=0000.

The drive doesn't support DD (720k) disks or 1.68mb DMF disks.

Links