M227 Ac Shifter

Summary The M227 module is a component for the PDP-15 central processor that contains 9 bits of accumulator logic with shifting capabilities. Two of these modules are combined to create an 18-bit accumulator shift register, which facilitates data manipulation and temporary storage during arithmetic or logical operations. The document also outlines the module's technical specifications, noting that standard inputs require 1.25 TTL unit loads (with the clock input requiring 18), outputs can drive 10 TTL unit loads, and the maximum power consumption is 5V at 420 mA.