Delta DOS
From The Dragon Archive
Description
The Delta DOS interface is a disk controller cartridge with disk access functions for BASIC in ROM. It was made by Premier Microsystems and there are two known versions of the interface.
Delta DOS Interface Pictures
- Casing
- Mk 1 Board (WD1771)
- Mk 2 Board (WD2791)
IC Parts Lists
Mk1 Board IC list (with Datasheets)
Part Number | Description | Datasheet |
2764 | 8Kb EPROM | (pdf) |
INS1771N-1 | WD1771 compatible FDC controller | (pdf) |
ICL7660CPA | CMOS Voltage converter | (pdf) |
SN7404N | Hex inverters | (pdf) |
SN7416N | Hex inverter buffers/drivers with open-collector high-voltage outputs | (pdf) |
SN7417N | Hex buffers/drivers with open-collector high-voltage outputs | (pdf) |
SN74LS03N | Quad 2-input positive-NAND gates with open collector outputs | (pdf) |
SN74LS04N | Hex inverters | (pdf) |
SN74LS08N | Quadruple 2-Input Positive-AND Gates | (pdf) |
SN74LS17N | Hex Buffers/Drivers With Open-Collector High-Voltage Outputs | (pdf) |
SN74LS32N | Quad 2-input positive-OR gates | (pdf) |
SN74LS93N | 4-Bit Binary Counters | (pdf) |
SN74LS123N | Dual retriggerable monostable multivibrators | (pdf) |
SN74LS139AN | Dual 2-line to 4-line decoders / demultiplexers | (pdf) |
SN74LS245N | Octal bus transceivers | (pdf) |
Mk2 Board IC list (with Datasheets)
Part Number | Description | Datasheet |
2764 | 8Kb EPROM | (pdf) |
SN74LS00N | Quad 2-input positive-NAND gates | (pdf) |
SN74LS04N | Hex inverters | (pdf) |
SN74LS08N | Quadruple 2-Input Positive-AND Gates | (pdf) |
SN74LS32N | Quad 2-input positive-OR gates | (pdf) |
SN74LS123N | Dual retriggerable monostable multivibrators | (pdf) |
SN74LS139AN | 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) |
SN74LS245N | Octal bus transceivers | (pdf) |
ULN2003AN | HIGH-VOLTAGE, HIGH-CURRENT DARLINGTON TRANSISTOR ARRAYS | (pdf) |
WD2791PL-02 | Floppy Disk Formatter/Controller | (pdf) |