Flash MCU. HT66F019 Datasheet

HT66F019 MCU. Datasheet pdf. Equivalent

HT66F019 Datasheet
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Part HT66F019
Description A/D Flash MCU
Feature HT66F019; A/D Flash MCU with EEPROM HT66F019 Revision: V1.00 Date: �D�e�c�e�mb��e�r�0�1��,��2�0�1�7 HT66F019 .
Manufacture Holtek Semiconductor
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Holtek Semiconductor HT66F019
A/D Flash MCU with EEPROM
HT66F019
Revision: V1.00 Date: �D�e�c�e�mb��e�r�0�1��,��2�0�1�7



Holtek Semiconductor HT66F019
HT66F019
A/D Flash MCU with EEPROM
Table of Contents
Features............................................................................................................. 7
CPU Features.......................................................................................................................... 7
Peripheral Features.................................................................................................................. 7
General Description.......................................................................................... 8
Block Diagram................................................................................................... 8
Pin Assignment................................................................................................. 9
Pin Description................................................................................................. 9
Absolute Maximum Ratings............................................................................11
D.C. Characteristics.........................................................................................11
Operating Voltage Characteristics...........................................................................................11
Standby Current Characteristics............................................................................................ 12
Operating Current Characteristics.......................................................................................... 13
A.C. Characteristics........................................................................................ 14
High Speed Internal Oscillator – HIRC – Frequency Accuracy.............................................. 14
Low Speed Internal Oscillator Characteristics – LIRC........................................................... 14
Operating Frequency Characteristic Curves.......................................................................... 15
System Start Up Time Characteristics................................................................................... 15
Input/Output Characteristics......................................................................... 16
Memory Characteristics................................................................................. 16
A/D Converter Electrical Characteristics...................................................... 17
Reference Voltage Characteristics................................................................ 17
LVD/LVR Electrical Characteristics............................................................... 17
Comparator Characteristics.......................................................................... 18
Power-on Reset Characteristics.................................................................... 18
System Architecture....................................................................................... 19
Clocking and Pipelining.......................................................................................................... 19
Program Counter.................................................................................................................... 20
Stack...................................................................................................................................... 20
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.......................................................................................... 25
Data Memory................................................................................................... 26
Structure................................................................................................................................. 26
General Purpose Data Memory............................................................................................. 26
Rev. 1.00
2 December 01, 2017



Holtek Semiconductor HT66F019
HT66F019
A/D Flash MCU with EEPROM
Special Purpose Data Memory.............................................................................................. 26
Special Function Register Description......................................................... 28
Indirect Addressing Register – IAR0, IAR1............................................................................ 28
Memory Pointers – MP0, MP1............................................................................................... 28
Bank Pointer – BP.................................................................................................................. 29
Accumulator – ACC................................................................................................................ 29
Program Counter Low Register – PCL................................................................................... 29
Look-up Table Registers – TBLP, TBHP, TBLH...................................................................... 29
Status Register – STATUS..................................................................................................... 30
EEPROM Data Memory................................................................................... 32
EEPROM Data Memory Structure......................................................................................... 32
EEPROM Registers............................................................................................................... 32
Reading Data from the EEPROM.......................................................................................... 34
Writing Data to the EEPROM................................................................................................. 34
Write Protection...................................................................................................................... 34
EEPROM Interrupt................................................................................................................. 34
Programming Considerations................................................................................................. 35
Oscillators....................................................................................................... 36
Oscillator Overview................................................................................................................ 36
System Clock Configurations................................................................................................. 36
External Crystal/Ceramic Oscillator – HXT............................................................................ 37
Internal RC Oscillator – HIRC................................................................................................ 38
External 32.768kHz Crystal Oscillator – LXT......................................................................... 38
Internal 32kHz Oscillator – LIRC............................................................................................ 39
Supplementary Oscillators..................................................................................................... 39
Operating Modes and System Clocks.......................................................... 40
System Clocks....................................................................................................................... 40
System Operation Modes....................................................................................................... 41
Control Registers................................................................................................................... 42
Fast Wake-up ........................................................................................................................ 43
Operating Mode Switching..................................................................................................... 44
Standby Current Considerations............................................................................................ 48
Wake-up................................................................................................................................. 48
Programming Considerations................................................................................................. 49
Watchdog Timer.............................................................................................. 50
Watchdog Timer Clock Source............................................................................................... 50
Watchdog Timer Control Register.......................................................................................... 50
Watchdog Timer Operation.................................................................................................... 51
Reset and Initialisation................................................................................... 52
Reset Functions..................................................................................................................... 52
Reset Initial Conditions ......................................................................................................... 54
Input/Output Ports.......................................................................................... 57
Pull-high Resistors................................................................................................................. 57
Port A Wake-up...................................................................................................................... 58
Rev. 1.00
3 December 01, 2017





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