Core Memory

This document contains the engineering drawings and logic diagrams for the MM11-E core memory system, dated March 1971. It includes:

• System Overviews: Logic diagrams for the overall core memory organization.
• Circuit Details: Schematics for the X and Y drive systems, memory stacks, and sense & inhibit logic.
• Control & Timing: Detailed timing and control logic diagrams.
• Module Utilization: Information on module layout and connectivity.

The document provides the necessary technical reference for the maintenance and understanding of the MM11-E memory architecture as used in PDP-11 systems.