Flash MCU. HT66F319 Datasheet

HT66F319 MCU. Datasheet pdf. Equivalent

HT66F319 Datasheet
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Part HT66F319
Description Enhanced A/D Flash MCU
Feature HT66F319; Enhanced A/D Flash MCU with EEPROM and UART HT66F319 Revision: V1.20 Date: �D�e�c�e�mb��e�r�0��5,��2.
Manufacture Holtek Semiconductor
Datasheet
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Holtek Semiconductor HT66F319
Enhanced A/D Flash MCU with EEPROM and UART
HT66F319
Revision: V1.20 Date: �D�e�c�e�mb��e�r�0��5,��2�0�1��6



Holtek Semiconductor HT66F319
HT66F319
Enhanced A/D Flash MCU with EEPROM and UART
Table of Contents
Features............................................................................................................. 7
CPU Features.......................................................................................................................... 7
Peripheral Features.................................................................................................................. 7
General Description.......................................................................................... 8
Block Diagram................................................................................................... 9
Pin Assignment................................................................................................. 9
Pin Description............................................................................................... 10
Absolute Maximum Ratings........................................................................... 12
D.C. Characteristics........................................................................................ 12
A.C. Characteristics........................................................................................ 14
A/D Converter Electrical Characteristics...................................................... 15
LVD & LVR Electrical Characteristics........................................................... 16
Comparator Electrical Characteristics......................................................... 17
LCD Electrical Characteristics...................................................................... 17
Power on Reset Characteristics.................................................................... 17
System Architecture....................................................................................... 18
Clocking and Pipelining.......................................................................................................... 18
Program Counter.................................................................................................................... 19
Stack...................................................................................................................................... 20
Arithmetic and Logic Unit – ALU............................................................................................ 20
Flash Program Memory.................................................................................. 21
Structure................................................................................................................................. 21
Special Vectors...................................................................................................................... 21
Look-up Table......................................................................................................................... 21
Table Program Example......................................................................................................... 22
In Circuit Programming – ICP................................................................................................ 23
On-Chip Debug Support – OCDS.......................................................................................... 24
RAM Data Memory.......................................................................................... 24
Structure................................................................................................................................. 24
Special Function Register Description......................................................... 26
Indirect Addressing Register – IAR0, IAR1............................................................................ 26
Memory Pointers – MP0, MP1 .............................................................................................. 26
Bank Pointer – BP.................................................................................................................. 27
Accumulator – ACC................................................................................................................ 27
Program Counter Low Register – PCL .................................................................................. 27
Look-up Table Registers – TBLP, TBHP, TBLH ..................................................................... 27
Status Register – STATUS .................................................................................................... 28
Rev. 1.20
2 December 05, 2016



Holtek Semiconductor HT66F319
HT66F319
Enhanced A/D Flash MCU with EEPROM and UART
EEPROM Data Memory................................................................................... 30
EEPROM Data Memory Structure......................................................................................... 30
EEPROM Registers............................................................................................................... 30
Reading Data from the EEPROM.......................................................................................... 32
Writing Data to the EEPROM................................................................................................. 32
Write Protection...................................................................................................................... 32
EEPROM Interrupt................................................................................................................. 32
Programming Considerations................................................................................................. 33
Oscillators....................................................................................................... 34
Oscillator Overview................................................................................................................ 34
System Clock Configurations................................................................................................. 34
External Crystal/Ceramic Oscillator – HXT............................................................................ 35
Internal RC Oscillator – HIRC................................................................................................ 36
External 32.768kHz Crystal Oscillator – LXT......................................................................... 36
Internal 32kHz Oscillator – LIRC............................................................................................ 37
Supplementary Oscillators..................................................................................................... 37
Operating Modes and System Clocks.......................................................... 38
System Clocks....................................................................................................................... 38
System Operation Modes....................................................................................................... 39
Control Register..................................................................................................................... 40
Fast Wake-up......................................................................................................................... 41
Operating Mode Switching..................................................................................................... 42
Standby Current Considerations ........................................................................................... 46
Wake-up................................................................................................................................. 46
Programming Considerations ................................................................................................ 47
Watchdog Timer.............................................................................................. 48
Watchdog Timer Clock Source............................................................................................... 48
Watchdog Timer Control Register.......................................................................................... 48
Watchdog Timer Operation.................................................................................................... 49
Reset and Initialisation................................................................................... 50
Reset Functions .................................................................................................................... 50
Reset Initial Conditions ......................................................................................................... 53
Input/Output Ports ......................................................................................... 56
Pull-high Resistors................................................................................................................. 56
Port A Wake-up...................................................................................................................... 58
I/O Port Control Registers...................................................................................................... 58
I/O Port Source Current Control............................................................................................. 59
Pin-shared Function............................................................................................................... 60
I/O Pin Structures................................................................................................................... 61
Programming Considerations ................................................................................................ 62
Rev. 1.20
3 December 05, 2016





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