STC89C58RD

STC89Cxx series MCU STC89LExx series MCU Data Sheet CONTENTS Chapter 1 Introduction......................................................................4 1.1 Features................................................................................................. 4 1.2 Block diagram....................................................................................... 5 1.3 Pin Configurations .............................................................................. 6 1.4 Pin Descriptions.................................................................................... 7 1.5 Pin Package Drawings.......................................................................... 8 Chapter 2 POWER MANAGENMENT, RESET......................... 11 2.1 Power Management ........................................................................... 11 2.1.1 Idle Mode.....................................................................................................11 2.1.2 Power Down (PD) Mode.............................................................................12 2.2 RESET Control................................................................................... 16 2.2.1 Reset pin.......................................................................................................16 2.2.2 Power-On Reset (POR). ..............................................................................17 ited2.2.3 Watch-Dog-Timer.....................................................................