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Flash MCU. HT66F0041 Datasheet

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Flash MCU. HT66F0041 Datasheet
















HT66F0041 MCU. Datasheet pdf. Equivalent













Part

HT66F0041

Description

1K/2K Low-Cost A/D Flash MCU



Feature


1K/2K Low-Cost A/D Flash MCU HT66F0021/H T66F0031/HT66F0041 Revision: V1.40 Date : September 24, 2020 HT66F0021/HT66F00 31/HT66F0041 1K/2K Low-Cost A/D Flash M CU Table of Contents Features......... ....................................... ....................................... ........................... 6 CPU Featu res.................................... ...................
Manufacture

Holtek Semiconductor

Datasheet
Download HT66F0041 Datasheet


Holtek Semiconductor HT66F0041

HT66F0041; ........................................ ..................................6 Per ipheral Features....................... ....................................... ....................................... ...................6 General Descriptio n...................................... ....................................... .................. 7 Selection Table... ...................


Holtek Semiconductor HT66F0041

........................................ ....................................... ... 7 Block Diagram.................... ....................................... ....................................... ...... 8 Pin Assignment................ ....................................... ....................................... ........ 9 Pin Description............. ...................


Holtek Semiconductor HT66F0041

........................................ ............................. 10 Absolu te Maximum Ratings..................... ....................................... .................... 13 D.C. Characteri stics.................................. ....................................... .................... 14 Operating Volta ge Characteristics..................... ...................





Part

HT66F0041

Description

1K/2K Low-Cost A/D Flash MCU



Feature


1K/2K Low-Cost A/D Flash MCU HT66F0021/H T66F0031/HT66F0041 Revision: V1.40 Date : September 24, 2020 HT66F0021/HT66F00 31/HT66F0041 1K/2K Low-Cost A/D Flash M CU Table of Contents Features......... ....................................... ....................................... ........................... 6 CPU Featu res.................................... ...................
Manufacture

Holtek Semiconductor

Datasheet
Download HT66F0041 Datasheet




 HT66F0041
1K/2K Low-Cost A/D Flash MCU
HT66F0021/HT66F0031/HT66F0041
Revision: V1.40 Date: September 24, 2020




 HT66F0041
HT66F0021/HT66F0031/HT66F0041
1K/2K Low-Cost A/D Flash MCU
Table of Contents
Features.................................................................................................................. 6
CPU Features................................................................................................................................6
Peripheral Features........................................................................................................................6
General Description............................................................................................... 7
Selection Table....................................................................................................... 7
Block Diagram........................................................................................................ 8
Pin Assignment...................................................................................................... 9
Pin Description.................................................................................................... 10
Absolute Maximum Ratings................................................................................ 13
D.C. Characteristics............................................................................................. 14
Operating Voltage Characteristics................................................................................................14
Standby Current Characteristics..................................................................................................14
Operating Current Characteristics................................................................................................14
A.C. Characteristics............................................................................................. 15
High Speed Internal Oscillator – HIRC – Frequency Accuracy....................................................15
Low Speed Internal Oscillator – LIRC – Frequency Accuracy..................................................... 15
Operating Frequency Characteristic Curves................................................................................15
System Start Up Time Characteristics.........................................................................................16
Input/Output Characteristics.............................................................................. 16
Memory Characteristics...................................................................................... 17
LVR Electrical Characteristics............................................................................ 18
Internal Reference Voltage Characteristics....................................................... 18
A/D Converter Electrical Characteristics........................................................... 18
Power-on Reset Characteristics......................................................................... 19
System Architecture............................................................................................ 19
Clocking and Pipelining................................................................................................................19
Program Counter..........................................................................................................................20
Stack............................................................................................................................................ 21
Arithmetic and Logic Unit – ALU..................................................................................................21
Flash Program Memory....................................................................................... 22
Structure....................................................................................................................................... 22
Special Vectors............................................................................................................................22
Look-up Table...............................................................................................................................22
Table Program Example...............................................................................................................23
In Circuit Programming – ICP......................................................................................................24
On-Chip Debug Support – OCDS................................................................................................24
Data Memory........................................................................................................ 25
Structure....................................................................................................................................... 25
General Purpose Data Memory...................................................................................................25
Rev. 1.40
2
September 24, 2020




 HT66F0041
HT66F0021/HT66F0031/HT66F0041
1K/2K Low-Cost A/D Flash MCU
Special Purpose Data Memory....................................................................................................26
Special Function Register Description.............................................................. 27
Indirect Addressing Register – IAR0............................................................................................27
Memory Pointer – MP0................................................................................................................27
Accumulator – ACC......................................................................................................................28
Program Counter Low Register – PCL.........................................................................................28
Look-up Table Registers – TBLP, TBHP, TBLH............................................................................28
Status Register – STATUS...........................................................................................................28
Emulated EEPROM Data Memory...................................................................... 30
Emulated EEPROM Data Memory Structure...............................................................................30
Emulated EEPROM Registers.....................................................................................................30
Erasing the Emulated EEPROM..................................................................................................34
Writing Data to the Emulated EEPROM.......................................................................................34
Reading Data from the Emulated EEPROM................................................................................35
Programming Considerations.......................................................................................................35
Oscillators............................................................................................................ 36
Oscillator Overview......................................................................................................................36
System Clock Configurations.......................................................................................................37
Internal High Speed RC Oscillator – HIRC..................................................................................37
Internal 32kHz Oscillator – LIRC..................................................................................................37
Operating Modes and System Clocks............................................................... 38
System Clocks.............................................................................................................................38
System Operation Modes.............................................................................................................39
Control Registers.........................................................................................................................40
Operating Mode Switching...........................................................................................................41
Standby Current Considerations..................................................................................................45
Wake-up....................................................................................................................................... 45
Watchdog Timer................................................................................................... 46
Watchdog Timer Clock Source.....................................................................................................46
Watchdog Timer Control Register................................................................................................46
Watchdog Timer Operation..........................................................................................................47
Reset and Initialisation........................................................................................ 48
Reset Functions...........................................................................................................................48
Reset Initial Conditions................................................................................................................50
Input/Output Ports............................................................................................... 53
Pull-high Resistors.......................................................................................................................54
Port A Wake-up............................................................................................................................54
I/O Port Control Registers............................................................................................................55
I/O Port Source Current Selection – HT66F0041 only................................................................. 55
Pin-shared Functions...................................................................................................................56
I/O Pin Structure...........................................................................................................................60
Programming Considerations.......................................................................................................60
Rev. 1.40
3
September 24, 2020




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