M628 Block-Bank Address Card

Summary The M628 is a module designed for the PDP-15 system, functioning as part of the MX15A memory multiplexer. It utilizes two 2-position switches, a 2-bit adder, and output gating logic to modify address bits 03 and 04, allowing the system to select a specific memory bank. The document outlines the technical specifications for the module, including its input load requirements, output driving capabilities, open-collector current sinking, propagation delay, and power consumption.