Difference between revisions of "Cumana DragonDOS FDC"

From The Dragon Archive

Latest revision as of 19:52, 13 October 2023

A Dragon DOS compatible floppy drive controller by Cumana.

Cumana FDC Board IC list (with Datasheets)

Part Number	Description	Datasheet
2764	8Kb EPROM	(pdf)
SN74LS00N	Quad 2-input positive-NAND gates	(pdf)
SN74LS74AN	DUAL D-TYPE POSITIVE EDGE-TRIGGERED FLIP-FLOPS WITH PRESET AND CLEAR	(pdf)
SN74LS139N	Dual 2-line to 4-line decoders / demultiplexers	(pdf)
SN74LS174N	Hex/Quadruple D-Type Flip-Flops With Clear	(pdf)
SN74LS240N	Octal buffers and line drivers, with 3-State outputs	(pdf)
ULN2003AN	High-voltage High current Darlington transistor array	(pdf)
WD2797A-PL	Floppy Disk Formatter/Controller	(pdf)

@@ Line 4: / Line 4: @@
 == Pictures ==
-<gallery>
+<gallery caption="Device case">
-Image:CumanaFDC_PCB_Top.jpg|PCB Top
-Image:CumanaFDC_PCB_Bottom.jpg|PCB Bottom
 Image:CumanaFDC_Top.jpg|Device Top
 Image:CumanaFDC_Bottom.jpg|Device Bottom
+Image:CumanaFDC_Case_Top.jpg|Device Top
+Image:CumanaFDC_Case_Bottom.jpg|Device Bottom
+</gallery>
+<gallery caption="Issue 1">
 Image:CumanaFDC_Top_Open.jpg|PCB
+</gallery>
+<gallery caption="Issue 2">
+Image:CumanaFDC_PCB_Top.jpg|PCB Top
+Image:CumanaFDC_PCB_Bottom.jpg|PCB Bottom
+</gallery>
+<gallery caption="Issue 3">
+Image:CumanaFDC_Issue3_PCB_Top.jpg|PCB Top
+Image:CumanaFDC_Issue3_PCB_Bottom.jpg|PCB Bottom
+Image:CumanaFDC_Issue3_PCB_Composite_View.jpg|Composite View
 </gallery>