This addendum describes corrections to the MPC5634M Microcontroller Datasheet， order number MPC5634M. For convenience， the addenda items are grouped by revision. Please check our website at http://www.freescale.com/powerarchitecture for the latest updates. The current version available of the MPC5634M Microcontroller Datasheet is Revision 9.

　　This document provides electrical specifications， pin assignments， and package diagrams for the MPC5634M series of microcontroller units （MCUs）。 For functional characteristics， refer to the MPC5634M Microcontroller Reference Manual. The MPC5634M series microcontrollers are system-on-chip devices that are built on Power Architecture? technology and： ? Are 100% user-mode compatible with the Power Architecture instruction set ? Contain enhancements that improve the architecture’s fit in embedded applications ? Include additional instruction support for digital signal processing （DSP） ? Integrate technologies such as an enhanced time processor unit， enhanced queued analog-to-digital converter， Controller Area Network， and an enhanced modular input-output system