Difference between revisions of "DDI-1DR Disk Controller"
From The Dragon Archive
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Revision as of 21:54, 6 December 2014
Description
A DragonDOS compatible disk controller by P.N.P. Communications.
DDI-1DR Interface Pictures
Casing Top
Casing Bottom
PCB Top
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IC Parts Lists
DDI-1DR Board IC list (with Datasheets)
| Part Number | Description | Datasheet |
| 2764 | 8Kb EPROM | (pdf) |
| 7407 | Hex Buffers with High Voltage Open-Collector Outputs | (pdf) |
| SN74LS00N | Quad 2-input positive-NAND gates | (pdf) |
| SN74LS73N | Dual JK negative edge-triggered flip-flop | (pdf) |
| SN74LS139AN | Dual 2-line to 4-line decoders / demultiplexers | (pdf) |
| SN74LS273N | Octal D Flip-Flop with clear | (pdf) |
ROM
- SuperDOS E6 (zipped .ROM file)
