The MA17502 Control Unit is a component of the MAS281 chip set. Other chips in the set include the MA17501 Execution Unit and the MA17503 Interrupt Unit. Also available is the peripheral MA31751 Memory Management Unit/Block Protection Unit. In conjunction these chips implement the full MIL-STD-1750A Instruction Set Architecture. The MA17502 consisting of a microsequencer, a microcode storage ROM, and an instruction mapping ROM - controls all chip set operations. Table 1 provides brief signal definitions. The MA17502 is offered in several speed and screening grades, and in dual in-line, flatpack or leadless chip carrier packaging. Screening options are described in this document. For availability of speed grades, please contact Dynex Semiconductor.