4 Bit 16 Word Memory M250

This document is a technical schematic and parts list for a "4 Bit 16 Word Memory" unit (Model M250) manufactured by Digital Equipment Corporation in 1970.

Key features include:

• Circuit Diagram: Displays the logic layout for the memory module, including address inputs (octal), data inputs, chip select, write enable, and data output. It identifies the use of a DEC 9035 Integrated Circuit.
• Power/Filtering: Shows the integration of capacitors (a 0.01µF disc capacitor and a 68µF tantalum capacitor) to support the circuit voltage.
• Parts List: Contains a comprehensive list of components required for the assembly, including the circuit board, the DEC 9035 IC, handle hardware, and eyelets, as well as references to associated documentation like the assembly/drilling hole layout and X-Y coordinate locations.