Name: Holtek HT66F002
Brand: Holtek
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Cost-Effective A/D Flash MCU with EEPROM

HT66F002/HT66F0025/HT66F003/HT66F004

Revision: V1.71 Date: April 11, 2017

Default Chapter2
- Table of Contents2
Features6
- CPU Features6
- Peripheral Features6
General Description7
Selection Table7
Block Diagram8
Pin Assignment8
Pin Description10
Absolute Maximum Ratings14
D.C. Characteristics15
Characteristics16
ADC Electrical Characteristics17
OPA Electrical Characteristics17
LVR Electrical Characteristics18
LCD Electrical Characteristics - HT66F00418
Power on Reset Electrical Characteristics18
System Architecture19
- Clocking and Pipelining19
- Program Counter20
- Stack21
- Arithmetic and Logic Unit - ALU21
Flash Program Memory22
- Structure22
- Special Vectors22
- Look-Up Table22
- In Circuit Programming - ICP24
- On-Chip Debug Support - OCDS24
RAM Data Memory25
- Structure25
- General Purpose Data Memory25
- Special Purpose Data Memory25
Special Function Register Description29
- Indirect Addressing Registers - IAR0, IAR129
- Memory Pointers - MP0, MP129
- Bank Pointer - BP30
- Accumulator - ACC30
- Program Counter Low Register - PCL30
- Look-Up Table Registers - TBLP, TBLH30
- Status Register - STATUS31
EEPROM Data Memory32
- EEPROM Data Memory Structure32
- EEPROM Registers33
- Reading Data from the EEPROM34
- Writing Data to the EEPROM35
- Write Protection35
- EEPROM Interrupt35
- Programming Considerations36
Oscillator37
- Oscillator Overview37
- System Clock Configurations37
- Internal RC Oscillator - HIRC38
- Internal 32Khz Oscillator - LIRC38
- Supplementary Oscillator38
Operating Modes and System Clocks38
- System Clocks38
- System Operation Modes39
- Control Register40
- Operating Mode Switching42
- NORMAL Mode to SLOW Mode Switching43
- SLOW Mode to NORMAL Mode Switching44
- Entering the SLEEP0 Mode44
- Entering the SLEEP1 Mode45
- Entering the IDLE0 Mode45
- Entering the IDLE1 Mode45
- Standby Current Considerations46
- Wake-Up46
Watchdog Timer47
- Watchdog Timer Clock Source47
- Watchdog Timer Control Register47
- Watchdog Timer Operation48
Reset and Initialisation49
- Reset Functions50
- Reset Initial Conditions53
Input/Output Ports56
- Pull-High Resistors57
- Port a Wake-Up58
- I/O Port Control Registers58
- Pin-Shared Functions59
- I/O Pin Structures64
- System Clock Output Pin CLO65
- Programming Considerations65
Timer Modules - TM66
- Introduction66
- TM Operation66
- TM Clock Source66
- TM Interrupts67
- TM External Pins67
- TM Input/Output Pin Control Register67
- Programming Considerations68
Standard Type TM - STM69
- Standard TM Operation69
- Standard Type TM Register Description70
- Standard Type TM Operating Modes74
- Compare Output Mode74
- Timer/Counter Mode77
- PWM Output Mode77
- Single Pulse Mode80
- Capture Input Mode82
Periodic Type TM - PTM83
- Periodic TM Operation83
- Periodic Type TM Register Description84
- Periodic Type TM Operating Modes88
- Compare Match Output Mode88
- Timer/Counter Mode91
- PWM Output Mode91
- Single Pulse Output Mode93
- Capture Input Mode95
Analog to Digital Converter97
- A/D Overview97
- A/D Converter Register Description98
- A/D Converter Data Registers - SADOL, SADOH98
- A/D Converter Control Registers - SADC0, SADC1, SADC2, PASR, PBSR99
- A/D Operation101
- A/D Converter Input Signal102
- Conversion Rate and Timing Diagram103
- Summary of A/D Conversion Steps104
- Programming Considerations105
- A/D Transfer Function105
- A/D Programming Examples106
Interrupts108
- Interrupt Registers108
- Interrupt Operation114
- External Interrupt116
- Multi-Function Interrupt116
- A/D Converter Interrupt116
- Time Base Interrupts117
- EEPROM Interrupt118
- TM Interrupts118
- Interrupt Wake-Up Function118
- Programming Considerations118
SCOM Function for LCD - HT66F004119
- LCD Peration119
- LCD Bias Current Control120
Application Circuits121
Instruction Set122
- Introduction122
- Instruction Timing122
- Moving and Transferring Data122
- Arithmetic Operations122
- Logical and Rotate Operation123
- Branches and Control Transfer123
- Bit Operations123
- Other Operations123
Instruction Set Summary124
Instruction Definition126
Package Information135
- 8-Pin SOP (150Mil) Outline Dimensions136
- 10-Pin SOP (150Mil) Outline Dimensions137
- 10-Pin MSOP Outline Dimensions138
- 16-Pin NSOP (150Mil) Outline Dimensions139
- 20-Pin DIP (300Mil) Outline Dimensions140
- 20-Pin SOP (300Mil) Outline Dimensions142
- 20-Pin SSOP (150Mil) Outline Dimensions143

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General

Brand	Holtek
Model	HT66F002
Category	Control Unit
Language	English

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