Flash MCU. HT66F60A Datasheet

HT66F60A MCU. Datasheet pdf. Equivalent

HT66F60A Datasheet
Recommendation HT66F60A Datasheet
Part HT66F60A
Description A/D Flash MCU
Feature HT66F60A; A/D Flash MCU with EEPROM HT66F60A HT66F70A Revision: V1.40 Date: �Au�g�u��s�t��28�,���2�0�1�7 HT66.
Manufacture Holtek Semiconductor
Datasheet
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Holtek Semiconductor HT66F60A
A/D Flash MCU with EEPROM
HT66F60A
HT66F70A
Revision: V1.40 Date: �Au�g�u��s�t��28�,���2�0�1�7



Holtek Semiconductor HT66F60A
HT66F60A/HT66F70A
A/D Flash MCU with EEPROM
Table of Contents
Features............................................................................................................. 7
CPU Features ......................................................................................................................... 7
Peripheral Features ................................................................................................................. 7
General Description.......................................................................................... 8
Selection Table.................................................................................................. 8
Block Diagram................................................................................................... 9
Pin Assignment............................................................................................... 10
Pin Description............................................................................................... 12
Absolute Maximum Ratings........................................................................... 18
D.C. Characteristics........................................................................................ 18
A.C. Characteristics........................................................................................ 21
A/D Converter Electrical Characteristics...................................................... 22
LVD & LVR Electrical Characteristics........................................................... 22
Comparator Electrical Characteristics......................................................... 23
Power on Reset Electrical Characteristics .................................................. 23
System Architecture....................................................................................... 24
Clocking and Pipelining.......................................................................................................... 24
Program Counter.................................................................................................................... 25
Stack...................................................................................................................................... 26
Arithmetic and Logic Unit – ALU............................................................................................ 26
Flash Program Memory.................................................................................. 27
Structure................................................................................................................................. 27
Special Vectors...................................................................................................................... 28
Look-up Table......................................................................................................................... 28
Table Program Example......................................................................................................... 29
In Circuit Programming – ICP................................................................................................ 30
On-Chip Debug Support – OCDS.......................................................................................... 31
In Application Programming – IAP......................................................................................... 31
Data Memory................................................................................................... 39
Structure................................................................................................................................. 39
General Purpose Data Memory............................................................................................. 40
Special Purpose Data Memory.............................................................................................. 40
Special Function Register Description......................................................... 42
Indirect Addressing Registers – IAR0, IAR1.......................................................................... 42
Memory Pointers – MP0, MP1............................................................................................... 42
Bank Pointer – BP.................................................................................................................. 43
Accumulator – ACC................................................................................................................ 43
Program Counter Low Register – PCL................................................................................... 44
Look-up Table Registers – TBLP, TBHP, TBLH...................................................................... 44
Status Register – STATUS..................................................................................................... 44
Rev. 1.40
2 August 28, 2017



Holtek Semiconductor HT66F60A
HT66F60A/HT66F70A
A/D Flash MCU with EEPROM
EEPROM Data Memory................................................................................... 46
EEPROM Data Memory Structure......................................................................................... 46
EEPROM Registers............................................................................................................... 46
Reading Data from the EEPROM.......................................................................................... 47
Writing Data to the EEPROM................................................................................................. 48
Write Protection...................................................................................................................... 48
EEPROM Interrupt................................................................................................................. 48
Programming Considerations................................................................................................. 48
Programming Examples......................................................................................................... 49
Oscillator......................................................................................................... 50
Oscillator Overview................................................................................................................ 50
System Clock Configurations................................................................................................. 50
External Crystal/Ceramic Oscillator – HXT............................................................................ 51
External RC Oscillator – ERC................................................................................................ 52
Internal High Speed RC Oscillator – HIRC............................................................................ 52
External 32.768kHz Crystal Oscillator – LXT......................................................................... 53
Internal Low Speed Oscillator – LIRC.................................................................................... 54
Supplementary Oscillators..................................................................................................... 54
Operating Modes and System Clocks.......................................................... 55
System Clock......................................................................................................................... 55
System Operation Modes....................................................................................................... 56
Control Register..................................................................................................................... 57
Fast Wake-up......................................................................................................................... 60
Operating Mode Switching..................................................................................................... 61
NORMAL Mode to SLOW Mode Switching............................................................................ 62
SLOW Mode to NORMAL Mode Switching............................................................................ 63
Entering the SLEEP0 Mode................................................................................................... 64
Entering the SLEEP1 Mode................................................................................................... 64
Entering the IDLE0 Mode....................................................................................................... 64
Entering the IDLE1 Mode....................................................................................................... 65
Standby Current Considerations............................................................................................ 65
Wake-up................................................................................................................................. 66
Programming Considerations................................................................................................. 66
Watchdog Timer.............................................................................................. 67
Watchdog Timer Clock Source............................................................................................... 67
Watchdog Timer Control Register.......................................................................................... 67
Watchdog Timer Operation.................................................................................................... 68
Reset and Initialisation................................................................................... 70
Reset Functions..................................................................................................................... 70
Reset Initial Conditions.......................................................................................................... 74
Input/Output Ports.......................................................................................... 78
Pull-high Resistors................................................................................................................. 80
Port A Wake-up...................................................................................................................... 80
I/O Port Control Registers...................................................................................................... 80
Pin-shared Functions............................................................................................................. 80
Rev. 1.40
3 August 28, 2017





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