4K x 12 MOS Memory

This document is a comprehensive technical schematic and parts list for the M8311 4K x 12 MOS memory module. The documentation includes:

• Parts List: A detailed bill of materials specifying all components used on the board, including ICs, resistors, capacitors, and crystals, categorized by their specific circuit designations.
• Switch and Jumper Definitions: Specifications for configuring the board's field selection, address selection, and memory size settings via physical switches, as well as jumper configurations for board addressing.
• Logic Schematics: Detailed circuit diagrams (sheets 3, 4, and 5) depicting the memory control logic, the memory array (utilizing 2102 RAM chips), and the data paths. The schematics illustrate signal flow for memory reads, writes, and clock synchronization required for the PDP-8 family of systems.