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ETC

STC12C2052AD Datasheet Preview

STC12C2052AD Datasheet

STCxxCccc

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STC89Cxx series MCU
STC89LExx series MCU
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ETC

STC12C2052AD Datasheet Preview

STC12C2052AD Datasheet

STCxxCccc

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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.......................................................................................17
2.2.4 Software RESET.........................................................................................20
Lim2.2.5 MAX810 power-on-reset delay..................................................................20
Chapter 3 Memory Organization....................................................21
CU3.1 Program Memory............................................................................... 21
3.2 Data Memory...................................................................................... 22
M3.2.1 On-chip Scratch-Pad RAM........................................................................22
3.2.2 Auxiliary RAM............................................................................................22
STC3.2.3 External RAM.............................................................................................22
3.2.4 Special Function Register for RAM..........................................................23
Chapter 4 Configurable I/O Ports Configurations............................ 29
4.1 Quasi-bidirectional I/O....................................................................... 29
4.2 Push-pull Output................................................................................. 30
4.3 Input-only Mode.................................................................................. 30
4.4 Open-drain Output.............................................................................. 30
Chapter 5 Instruction System..........................................................31
5.1 Special Function Registers................................................................. 31
5.2 Addressing Modes............................................................................... 36
5.3 Instruction Set Summary................................................................... 37
5.4 Instruction Definitions....................................................................... 41


Part Number STC12C2052AD
Description STCxxCccc
Maker ETC
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