Flash MCU. HT45F3230 Datasheet

HT45F3230 MCU. Datasheet pdf. Equivalent

HT45F3230 Datasheet
Recommendation HT45F3230 Datasheet
Part HT45F3230
Description IR Sensing/Motor Driving Flash MCU
Feature HT45F3230; IR Sensing/Motor Driving Flash MCU HT45F3230 Revision: V1.00 Date: January 13, 2017 HT45F3230 IR Se.
Manufacture Holtek Semiconductor
Datasheet
Download HT45F3230 Datasheet




Holtek Semiconductor HT45F3230
IR Sensing/Motor Driving Flash MCU
HT45F3230
Revision: V1.00 Date: January 13, 2017



Holtek Semiconductor HT45F3230
HT45F3230
IR Sensing/Motor Driving Flash MCU
Table of Contents
Features................................................................................................................. 6
CPU Features...............................................................................................................................6
Peripheral Features.......................................................................................................................6
General Description.............................................................................................. 7
Block Diagram....................................................................................................... 7
Pin Assignment..................................................................................................... 8
Pin Description..................................................................................................... 8
Absolute Maximum Ratings............................................................................... 11
D.C. Characteristics............................................................................................ 11
A.C. Characteristics............................................................................................ 12
LVD & LVR Electrical Characteristics............................................................... 12
Internal Reference Voltage Electrical Characteristics..................................... 13
A/D Converter Electrical Characteristics.......................................................... 13
Infrared Sensing Circuit Electrical Characteristics......................................... 14
Comparator Electrical Characteristics.........................................................................................14
Operational Amplifier Electrical Characteristics..........................................................................15
D/A Converter Electrical Characteristics.....................................................................................15
Over Current Protection Circuit Electrical Characteristics............................ 16
Sink Current Generator Electrical Characteristics.......................................... 16
Direct Driving Level Shifter Electrical Characteristics.................................... 17
Power-on Reset Characteristics........................................................................ 17
System Architecture........................................................................................... 18
Clocking and Pipelining...............................................................................................................18
Program Counter.........................................................................................................................19
Stack...........................................................................................................................................19
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...............................................................................................23
Data Memory....................................................................................................... 24
Structure......................................................................................................................................24
General Purpose Data Memory..................................................................................................25
Special Purpose Data Memory...................................................................................................25
Rev. 1.00
2 January 13, 2017



Holtek Semiconductor HT45F3230
HT45F3230
IR Sensing/Motor Driving Flash MCU
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 ..........................................................................28
Status Register – STATUS..........................................................................................................28
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
Internal RC Oscillator – HIRC.....................................................................................................35
Internal 32kHz Oscillator – LIRC.................................................................................................35
Operating Modes and System Clocks.............................................................. 35
System Clocks............................................................................................................................35
System Operation Modes............................................................................................................36
Control Register..........................................................................................................................38
Operating Mode Switching..........................................................................................................39
Standby Current Considerations ................................................................................................43
Wake-up......................................................................................................................................43
Watchdog Timer.................................................................................................. 44
Watchdog Timer Clock Source....................................................................................................44
Watchdog Timer Control Register...............................................................................................44
Watchdog Timer Operation.........................................................................................................45
Reset and Initialisation....................................................................................... 46
Reset Functions..........................................................................................................................46
Reset Initial Conditions...............................................................................................................48
Input/Output Ports.............................................................................................. 51
Pull-high Resistors......................................................................................................................51
Port A Wake-up...........................................................................................................................52
I/O Port Control Registers...........................................................................................................52
Pin-shared Functions..................................................................................................................53
I/O Pin Structures........................................................................................................................57
Programming Considerations .....................................................................................................57
Rev. 1.00
3 January 13, 2017







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