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STC MCU Limited
www.STCMCU.com
STC MCU Limited
Update date: 2011/8/16
website:www.STCMCU.com
CONTENTS
Chapter 1 Introduction.....................................................................6
1.1 Features................................................................................................. 6 1.2 Block diagram........................................................................................ 7 1.3 Pin Configurations ................................................................................ 8
1.3.1 Pin Configurations of STC11xx Series MCU....................................................... 8 1.3.2 Pin Configurations of STC10xx Series MCU..................................................... 12
1.4 STC11/10xx series Selection Table...................................................... 14 1.5 STC11/10xx series Minimum Application System.............................. 19 1.6 STC11/10xx series application circuit for ISP...................................... 20 1.7 Pin Descriptions................................................................................... 21 1.8 Pin Package Drawings......................................................................... 23 1.9 STC11/10xx series MCU naming rules............................................... 33 1.10 Global Unique Identification Number (ID)....................................... 35
Chapter 2 CLOCK, POWER MANAGENMENT, RESET......................................... 38
2.1 Clock.................................................................................................... 38
2.1.1 Clock Network ................................................................................................... 38 2.1.2 Internal RC Oscillator frequency(Internal clock frequency) .............................. 39
2.2 Power Management ............................................................................. 40
2.2.1 Idle Mode............................................................................................................. 40 2.2.2 Slow Down Mode................................................................................................. 40 2.2.3 Power Down (PD) Mode...................................................................................... 41
2.3 RESET Control..................................................................................... 46
2.3.1 Reset pin............................................................................................................... 46 2.3.2 Power-On Reset (POR)........................................................................................ 46 2.3.3 Watch-Dog-Timer................................................................................................. 47 2.3.4 Software RESET..................................................................................