Flash MCU. HT45F39 Datasheet

HT45F39 MCU. Datasheet pdf. Equivalent

HT45F39 Datasheet
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Part HT45F39
Description Ultrasonic Distance Measurement Flash MCU
Feature HT45F39; Ultrasonic Distance Measurement Flash MCU HT45F39/HT45F391 Revision: V1.20 Date: �Ju�l��y�1�2��,�2�0.
Manufacture Holtek Semiconductor
Datasheet
Download HT45F39 Datasheet




Holtek Semiconductor HT45F39
Ultrasonic Distance Measurement Flash MCU
HT45F39/HT45F391
Revision: V1.20 Date: �Ju�l��y�1�2��,�2�0�1��7



Holtek Semiconductor HT45F39
HT45F39/HT45F391
Ultrasonic Distance Measurement 8-bit Flash MCU
Table of Contents
Features............................................................................................................. 5
CPU Features.......................................................................................................................... 5
Peripheral Features.................................................................................................................. 5
General Description.......................................................................................... 6
Selection Table.................................................................................................. 6
Block Diagram................................................................................................... 7
Pin Assignment................................................................................................. 7
Pin Descriptions............................................................................................... 8
Absolute Maximum Ratings............................................................................. 9
D.C. Characteristics........................................................................................ 10
A.C. Characteristics........................................................................................ 10
A/D Characteristics..........................................................................................11
Shunt Regulator Electrical Characteristics HT45F39 Only.......................11
SCF Electrical Characteristics....................................................................... 13
Op Amplifier Electrical Characteristics........................................................ 13
Power-on Reset Characteristics.................................................................... 13
System Architecture....................................................................................... 14
Clocking and Pipelining.......................................................................................................... 14
Program Counter.................................................................................................................... 15
Stack...................................................................................................................................... 16
Arithmetic and Logic Unit – ALU............................................................................................ 16
Flash Program Memory.................................................................................. 17
Structure................................................................................................................................. 17
Look-up Table......................................................................................................................... 18
Table Program Example......................................................................................................... 18
In Circuit Programming – ICP................................................................................................ 19
On-Chip Debug Support – OCDS.......................................................................................... 20
In Application Programming – IAP......................................................................................... 21
Data Memory................................................................................................... 28
Structure................................................................................................................................. 28
Special Function Register Description......................................................... 29
Indirect Addressing Registers – IAR0, IAR1.......................................................................... 29
Memory Pointers – MP0, MP1............................................................................................... 29
Accumulator – ACC................................................................................................................ 30
Program Counter Low Register – PCL................................................................................... 30
Look-up Table Registers – TBLP, TBLH................................................................................. 30
Status Register – STATUS..................................................................................................... 30
Rev. 1.20
2 July 12, 2017



Holtek Semiconductor HT45F39
HT45F39/HT45F391
Ultrasonic Distance Measurement 8-bit Flash MCU
Oscillators and Operating Modes................................................................. 32
Internal High Speed Oscillator – HIRC................................................................................... 32
Internal Low Speed Oscillator – LIRC.................................................................................... 32
System Operation Modes....................................................................................................... 32
Standby Current Considerations............................................................................................ 33
Wake-up................................................................................................................................. 33
Programming Considerations................................................................................................. 33
Watchdog Timer.............................................................................................. 34
Watchdog Timer Clock Source............................................................................................... 34
Watchdog Timer Control Register.......................................................................................... 34
Watchdog Timer Operation.................................................................................................... 35
Reset and Initialisation................................................................................... 36
Reset Overview...................................................................................................................... 36
Reset Functions..................................................................................................................... 36
Reset Initial Conditions.......................................................................................................... 39
Input/Output Ports ......................................................................................... 42
I/O Register List..................................................................................................................... 42
Pull-high Resistors................................................................................................................. 42
Port A Wake-up...................................................................................................................... 43
I/O Port Control Registers...................................................................................................... 43
I/O Pin Structures................................................................................................................... 43
Programming Considerations................................................................................................. 44
Timer Modules – TM....................................................................................... 45
Introduction............................................................................................................................ 45
TM Operation......................................................................................................................... 46
TM Clock Source.................................................................................................................... 46
TM Interrupts.......................................................................................................................... 46
TM External Pins.................................................................................................................... 46
Programming Considerations................................................................................................. 47
Compact Type TM – CTM............................................................................... 48
Compact TM Operation.......................................................................................................... 48
Compact Type TM Register Description................................................................................ 49
Compact Type TM Operating Modes..................................................................................... 52
Compare Match Output Mode................................................................................................ 52
Timer/Counter Mode.............................................................................................................. 55
PWM Output Mode................................................................................................................. 55
Operational Amplifiers................................................................................... 58
Switch-Capacitor Filter – SCF................................................................................................ 58
A/D Converter.................................................................................................. 59
A/D Overview......................................................................................................................... 59
A/D Converter Register Description....................................................................................... 59
A/D Converter Data Register – ADR...................................................................................... 60
A/D Converter Conterl Registers – ADCR0, ADCR1, ACERL................................................ 60
Rev. 1.20
3 July 12, 2017







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