Delta DOS

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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




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)


Delta DOS ROM