CONTENTS
Chapter 1 Introduction.....................................................................5
1.1 Features .................................................................................................... 5
1.2 Block diagram.......................................................................................... 6
1.3 PINS Definition........................................................................................ 7
1.3.1 STC15F204EA series Pin Definition............................................................7
1.3.2 STC15F101E series Pin Definition ..............................................................8
1.3.3 STC15S204EA series Pin Definition............................................................9
1.4 STC15F204EA series Typical Application Circuit (for ISP) ................. 10
1.5 PINS Descriptions of STC15F204EA series.......................................... 11
1.6 Package Drawings.................................................................................. 13
1.7 STC15Fxx series MCU naming rules .................................................... 19
1.7.1 STC15F204EA series MCU naming rules..................................................19
1.7.2 STC15F101E series MCU naming rules ....................................................20
Chapter 2 Clock, Power Management, Reset ................................21
2.1 Clock ...................................................................................................... 21
2.2 Power Management................................................................................ 22
2.2.1 Idle Mode.....................................................................................................22
2.2.2 Slow Down Mode........................................................................................23
2.2.3 Power Down (PD) Mode (Stop Mode)........................................................24
2.3 Reset........................................................................................................ 30
2.3.1 Reset pin .....................................................................................................30
2.3.2 Software RESET .........................................................................................30
2.3.3 Power-On Reset (POR) ...............................................................................30
2.3.4 Watch-Dog-Timer........................................................................................31
2.3.5 MAX810 power-on-reset delay ...................................................................35
2.3.6 Low Voltage Detection ................................................................................35
Chapter 3 Memory Organization ...................................................37
3.1 Program Memory .................................................................................... 37
3.2 SRAM ..................................................................................................... 38
Chapter 4 Configurable I/O Ports ..................................................40
4.1 I/O Port Configurations........................................................................... 40
4.1.1 Quasi-bidirectional I/O................................................................................40
4.1.2 Push-pull Output..........................................................................................41
4.1.3 Input-only Mode..........................................................................................41
4.1.4 Open-drain Output.......................................................................................41
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