Flash MCU. HT66F006 Datasheet

HT66F006 MCU. Datasheet pdf. Equivalent

HT66F006 Datasheet
Recommendation HT66F006 Datasheet
Part HT66F006
Description Cost-Effective A/D Flash MCU
Feature HT66F006; Cost-Effective A/D Flash MCU with EEPROM HT66F005/HT66F006 Revision: V1.30 Date: �Ap�r��i�l��27�,���.
Manufacture Holtek Semiconductor
Datasheet
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Holtek Semiconductor HT66F006
Cost-Effective A/D Flash MCU with EEPROM
HT66F005/HT66F006
Revision: V1.30 Date: �Ap�r��i�l��27�,���2�0�1�7



Holtek Semiconductor HT66F006
HT66F005/HT66F006
Cost-Effective A/D Flash MCU with EEPROM
Table of Contents
Features............................................................................................................. 6
CPU Features.......................................................................................................................... 6
Peripheral Features.................................................................................................................. 6
General Description.......................................................................................... 7
Selection Table.................................................................................................. 7
Block Diagram................................................................................................... 8
Pin Assignment................................................................................................. 8
Pin Description................................................................................................. 9
Absolute Maximum Ratings........................................................................... 10
D.C. Characteristics........................................................................................ 10
A.C. Characteristics........................................................................................ 12
A/D Converter Characteristics....................................................................... 13
Power on Reset Electrical Characteristics................................................... 14
Bandgap Reference (Vbg) Characteristic Curve.......................................... 14
System Architecture....................................................................................... 15
Clocking and Pipelining.......................................................................................................... 15
Program Counter.................................................................................................................... 16
Stack...................................................................................................................................... 17
Arithmetic and Logic Unit – ALU............................................................................................ 17
Flash Program Memory.................................................................................. 18
Structure................................................................................................................................. 18
Special Vectors...................................................................................................................... 18
Look-up Table......................................................................................................................... 18
Table Program Example......................................................................................................... 19
In Circuit Programming.......................................................................................................... 20
On-Chip Debug Support – OCDS.......................................................................................... 21
RAM Data Memory.......................................................................................... 22
Structure................................................................................................................................. 22
Special Function Register Description......................................................... 23
Indirect Addressing Registers – IAR0, IAR1.......................................................................... 23
Memory Pointers – MP0, MP1............................................................................................... 23
Bank Pointer – BP.................................................................................................................. 24
Accumulator – ACC................................................................................................................ 25
Program Counter Low Register – PCL................................................................................... 25
Look-up Table Registers – TBLP, TBHP, TBLH...................................................................... 25
Status Register – STATUS..................................................................................................... 25
Rev. 1.30
2 April 27, 2017



Holtek Semiconductor HT66F006
HT66F005/HT66F006
Cost-Effective A/D Flash MCU with EEPROM
EEPROM Data Memory................................................................................... 27
EEPROM Data Memory Structure......................................................................................... 27
EEPROM Registers............................................................................................................... 27
Reading Data from the EEPROM.......................................................................................... 29
Writing Data to the EEPROM................................................................................................. 29
Write Protection...................................................................................................................... 29
EEPROM Interrupt................................................................................................................. 29
Programming Considerations................................................................................................. 29
Programming Examples......................................................................................................... 30
Oscillator......................................................................................................... 31
Oscillator Overview................................................................................................................ 31
System Clock Configurations................................................................................................. 31
External Crystal/Ceramic Oscillator – HXT............................................................................ 31
High Speed Internal RC Oscillator – HIRC............................................................................ 32
Internal 32kHz Oscillator – LIRC............................................................................................ 32
Supplementary Oscillator....................................................................................................... 32
Operating Modes and System Clocks.......................................................... 33
System Clocks....................................................................................................................... 33
System Operation Modes....................................................................................................... 34
Control Register..................................................................................................................... 35
Fast Wake-up......................................................................................................................... 36
Operating Mode Switching and Wake-up............................................................................... 37
NORMAL Mode to SLOW Mode Switching............................................................................ 38
SLOW Mode to NORMAL Mode Switching............................................................................ 39
Entering the SLEEP0 Mode................................................................................................... 39
Entering the SLEEP1 Mode................................................................................................... 40
Entering the IDLE0 Mode....................................................................................................... 40
Entering the IDLE1 Mode....................................................................................................... 40
Standby Current Considerations............................................................................................ 41
Wake-up................................................................................................................................. 41
Programming Considerations................................................................................................. 42
Watchdog Timer.............................................................................................. 42
Watchdog Timer Clock Source............................................................................................... 42
Watchdog Timer Control Register.......................................................................................... 42
Watchdog Timer Operation.................................................................................................... 44
Reset and Initialisation................................................................................... 45
Reset Overview...................................................................................................................... 45
Reset Functions..................................................................................................................... 46
Reset Initial Conditions.......................................................................................................... 49
Input/Output Ports.......................................................................................... 51
Pull-high Resistors................................................................................................................. 51
Port A Wake-up...................................................................................................................... 52
I/O Port Control Registers...................................................................................................... 52
Rev. 1.30
3 April 27, 2017





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