STC89LE51RC

www.STCMCU.com Mobile:(86)13922809991 Tel:86-755-82948412 Fax:86-755-82905966 SSTTCC8899LCE5511DRMRaCCCta/UR/RSDhD+Le+eismtseeirtrieeides.sMMCCUU STC STC MCU Limited www.STCMCU.com STC MCU Limited. Update date: 2011-7-25 website：www.STCMCU.com  CONTENTS Chapter 1. Introduction................................................................ 6 1.1 Features...................................................................................................6 1.2 Block diagram.........................................................................................7 1.3 Pin Configurations of STC89C51RC/RD+ series MCU........................8 1.3.1 Pin Configurations of STC89C51RC/RD+ series HD Version MCU....................8 1.3.2 Pin Configurations of STC89C51RC/RD+ series 90C Version MCU...................9 1.4 STC89C51RC/RD+ series Selection Table...........................................10 1.5 STC89C51RC/RD+ series Minimum Application System...................11 1.6 STC89C51RC/RD+ series Application Circuit for ISP........................12 1.7 Pin Descriptions....................................................................................14 ited1.8 Package Dimension Drawings..............................................................16 1.9 STC89C51RC/RD+ series MCU naming rules....................................20 Lim1.10 How to Identify 90C and HD version of STC89xx series MCU........21 1.11 Reduce the Electromagnetic Radiation of MCU Clock (EMI)...........22...