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USB MCU. HT66FB540 Datasheet

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USB MCU. HT66FB540 Datasheet






HT66FB540 MCU. Datasheet pdf. Equivalent




HT66FB540 MCU. Datasheet pdf. Equivalent





Part

HT66FB540

Description

A/D Flash USB MCU



Feature


A/D Flash USB MCU with SPI HT66FB540/HT6 6FB542 HT66FB550/HT66FB560 Revision: V1 .60 Date: �M�a�y��24�,� �2�0�1�7 HT66FB540/HT66FB542/ HT66FB550/HT66FB560 A/D Flash USB MCU w ith SPI Table of Contents Features... ....................................... ....................................... ............................ 6 CPU Feat ures.......................................
Manufacture

Holtek Semiconductor

Datasheet
Download HT66FB540 Datasheet


Holtek Semiconductor HT66FB540

HT66FB540; ........................................ ....................................... ..... 6 Peripheral Features............ ....................................... ....................................... ........................ 6 General Desc ription................................ ....................................... ................... 7 Selection Table.. ...................


Holtek Semiconductor HT66FB540

........................................ ...................................... 8 Block Diagram........................ ....................................... .................................... 8 Pin Assignment......................... . .


Holtek Semiconductor HT66FB540

.

Part

HT66FB540

Description

A/D Flash USB MCU



Feature


A/D Flash USB MCU with SPI HT66FB540/HT6 6FB542 HT66FB550/HT66FB560 Revision: V1 .60 Date: �M�a�y��24�,� �2�0�1�7 HT66FB540/HT66FB542/ HT66FB550/HT66FB560 A/D Flash USB MCU w ith SPI Table of Contents Features... ....................................... ....................................... ............................ 6 CPU Feat ures.......................................
Manufacture

Holtek Semiconductor

Datasheet
Download HT66FB540 Datasheet




 HT66FB540
A/D Flash USB MCU with SPI
HT66FB540/HT66FB542
HT66FB550/HT66FB560
Revision: V1.60 Date: �M�a�y��24�,���2�0�1�7




 HT66FB540
HT66FB540/HT66FB542/HT66FB550/HT66FB560
A/D Flash USB MCU with SPI
Table of Contents
Features............................................................................................................. 6
CPU Features.......................................................................................................................... 6
Peripheral Features.................................................................................................................. 6
General Description.......................................................................................... 7
Selection Table.................................................................................................. 8
Block Diagram................................................................................................... 8
Pin Assignment................................................................................................. 9
Pin Description............................................................................................... 12
Absolute Maximum Ratings........................................................................... 23
D.C. Characteristics........................................................................................ 24
A.C. Characteristics........................................................................................ 26
LVD & LVR Electrical Characteristics........................................................... 27
ADC Electrical Characteristics...................................................................... 28
Comparator Electrical Characteristics......................................................... 28
Power on Reset (AC+DC) Electrical Characteristics................................... 28
System Architecture....................................................................................... 29
Clocking and Pipelining.......................................................................................................... 29
Program Counter.................................................................................................................... 30
Stack...................................................................................................................................... 31
Arithmetic and Logic Unit – ALU............................................................................................ 31
Flash Program Memory.................................................................................. 32
Structure................................................................................................................................. 32
Special Vectors...................................................................................................................... 32
Look-up Table......................................................................................................................... 33
Table Program Example......................................................................................................... 33
In System Programming – ISP............................................................................................... 34
In Application Programming – IAP......................................................................................... 40
In Circuit Programming – ICP................................................................................................ 44
On-Chip Debug Support – OCDS.......................................................................................... 45
RAM Data Memory.......................................................................................... 46
Structure................................................................................................................................. 46
Special Function Register Description......................................................... 51
Indirect Addressing Registers – IAR0, IAR1.......................................................................... 51
Memory Pointers – MP0, MP1............................................................................................... 51
Bank Pointer – BP.................................................................................................................. 52
Accumulator – ACC................................................................................................................ 53
Program Counter Low Register – PCL................................................................................... 54
Look-up Table Registers – TBLP, TBHP, TBLH...................................................................... 54
Status Register – STATUS..................................................................................................... 54
Rev. 1.60
2 May 24, 2017




 HT66FB540
HT66FB540/HT66FB542/HT66FB550/HT66FB560
A/D Flash USB MCU with SPI
Oscillators....................................................................................................... 56
Oscillator Overview................................................................................................................ 56
System Clock Configurations................................................................................................. 56
External Crystal Oscillator – HXT........................................................................................... 57
Internal PLL Frequency Generator......................................................................................... 58
Internal RC Oscillator – HIRC................................................................................................ 60
External 32.768kHz Crystal Oscillator – LXT......................................................................... 60
Internal 32kHz Oscillator – LIRC............................................................................................ 62
Supplementary Internal Clocks.............................................................................................. 62
Operating Modes and System Clocks.......................................................... 62
System Clocks....................................................................................................................... 62
System Operation Modes....................................................................................................... 64
Control Register..................................................................................................................... 65
Fast Wake-up......................................................................................................................... 67
Operating Mode Switching and Wake-up............................................................................... 68
Standby Current Considerations............................................................................................ 72
Wake-up................................................................................................................................. 72
Programming Considerations................................................................................................. 73
Watchdog Timer.............................................................................................. 74
Watchdog Timer Clock Source............................................................................................... 74
Watchdog Timer Control Register.......................................................................................... 74
Watchdog Timer Operation.................................................................................................... 75
WDT Enable/Disabled using the WDT Control Register........................................................ 76
Reset and Initialisation................................................................................... 77
Reset Overview...................................................................................................................... 77
Reset Functions..................................................................................................................... 78
WDTC Register Software Reset ........................................................................................... 81
Reset Initial Conditions.......................................................................................................... 82
Input/Output Ports.......................................................................................... 95
Pull-high Resistors................................................................................................................. 98
Port Wake-up....................................................................................................................... 100
Port A Wake-up Polarity Control Register ........................................................................... 102
I/O Port Control Registers.................................................................................................... 102
I/O Output Current Control Registers .................................................................................. 104
I/O Output Slew Rate Control Registers.............................................................................. 106
Port A Power Source Control Registers .............................................................................. 108
I/O Pin Structures................................................................................................................. 109
Programming Considerations................................................................................................110
Timer Modules – TM......................................................................................111
Introduction...........................................................................................................................111
TM Operation........................................................................................................................111
TM Clock Source...................................................................................................................112
TM Interrupts.........................................................................................................................112
Rev. 1.60
3 May 24, 2017



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