This document contains detailed information on power considerations, AC/DC electrical characteristics, and AC timing speciÞcations for revision A and B of the MPC850. This document contains the following topics: Topic Page Section 1.1, "Overview" 1 Section 1.2, "Features" 3 Section 1.3, "Electrical and Thermal Characteristics" 7 Section 1.4, "Thermal Characteristics" 7 Section 1.5, "Power Considerations" 9 Section 1.6, "Bus Signal Timing" 10 Section 1.7, "IEEE 1149.1 Electrical SpeciÞcations" 39 Section 1.8, "CPM Electrical Characteristics" 42 Section 1.9, "Mechanical Data and Ordering Information" 64