Flash MCU. HT45F67 Datasheet

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HT45F67 Datasheet
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Part HT45F67
Description Glucose Meter 8-Bit Flash MCU
Feature HT45F67; Glucose Meter 8-Bit Flash MCU HT45F65/HT45F66/HT45F67 Revision: V1.60 Date: �N�o�ve��mb��e�r��24�,��.
Manufacture Holtek Semiconductor
Datasheet
Download HT45F67 Datasheet




Holtek Semiconductor HT45F67
Glucose Meter 8-Bit Flash MCU
HT45F65/HT45F66/HT45F67
Revision: V1.60 Date: �N�o�ve��mb��e�r��24�,���2�0�1�5



Holtek Semiconductor HT45F67
HT45F65/HT45F66/HT45F67
Glucose Meter 8-Bit Flash MCU
Table of Contents
Features............................................................................................................. 7
CPU Features ......................................................................................................................... 7
Peripheral Features.................................................................................................................. 7
General Description.......................................................................................... 8
Selection Table.................................................................................................. 8
Block Diagram................................................................................................... 9
Pin Assignment............................................................................................... 10
Pin Description............................................................................................... 14
Absolute Maximum Ratings........................................................................... 18
D.C. Characteristics........................................................................................ 18
A.C. Characteristics........................................................................................ 20
ADC & Bandgap Electrical Characteristics.................................................. 21
Power-on Reset Characteristics.................................................................... 21
LCD D.C. Characteristics............................................................................... 22
Audio DAC Electrical Characteristics........................................................... 22
10-bit DAC Electrical Characteristics........................................................... 22
OP Amplifier Electrical Characteristics........................................................ 23
Analog Switch Electrical Characteristics..................................................... 23
Temperature Sensor Electrical Characteristics........................................... 23
System Architecture....................................................................................... 24
Clocking and Pipelining.......................................................................................................... 24
Program Counter.................................................................................................................... 25
Stack...................................................................................................................................... 26
Arithmetic and Logic Unit – ALU ........................................................................................... 26
Flash Program Memory ................................................................................. 27
Structure ................................................................................................................................ 27
Special Vectors...................................................................................................................... 27
Look-up Table ........................................................................................................................ 28
Table Program Example......................................................................................................... 28
In Circuit Programming – ICP................................................................................................ 29
In Application Programming – IAP......................................................................................... 30
On Chip Debug Support (OCDS)........................................................................................... 37
RAM Data Memory.......................................................................................... 38
Structure ................................................................................................................................ 38
Rev. 1.60
2 November 24, 2015



Holtek Semiconductor HT45F67
HT45F65/HT45F66/HT45F67
Glucose Meter 8-Bit Flash MCU
Special Function Register Description......................................................... 40
Indirect Addressing Registers – IAR0, IAR1 ......................................................................... 40
Memory Pointers – MP0, MP1 .............................................................................................. 40
Bank Pointer – BP ................................................................................................................. 41
Accumulator – ACC ............................................................................................................... 42
Program Counter Low Register – PCL .................................................................................. 42
Look-up Table Registers – TBLP, TBHP, TBLH ..................................................................... 42
Status Register – STATUS..................................................................................................... 43
Oscillator......................................................................................................... 44
Oscillator Overview ............................................................................................................... 44
System Clock Configurations................................................................................................. 44
External Crystal/Ceramic Oscillator – HXT............................................................................ 45
External RC Oscillator – ERC (HT45F66/HT45F67).............................................................. 46
Internal RC Oscillator – HIRC................................................................................................ 46
External 32.768kHz Crystal Oscillator – LXT......................................................................... 46
LXT Oscillator Low Power Function ...................................................................................... 47
Internal 32kHz Oscillator – LIRC ........................................................................................... 48
Supplementary Oscillators .................................................................................................... 48
Operating Modes and System Clocks.......................................................... 48
System Clocks....................................................................................................................... 48
System Operation Modes ...................................................................................................... 50
Control Register..................................................................................................................... 51
Fast Wake-up......................................................................................................................... 52
Operating Mode Switching .................................................................................................... 54
Standby Current Considerations ........................................................................................... 57
Wake-up................................................................................................................................. 57
Programming Considerations ................................................................................................ 58
System Clock Output............................................................................................................. 58
Watchdog Timer.............................................................................................. 59
Watchdog Timer Clock Source............................................................................................... 59
Watchdog Timer Control Register.......................................................................................... 59
Watchdog Timer Operation.................................................................................................... 60
Reset and Initialisation .................................................................................. 61
Reset Functions .................................................................................................................... 61
Reset Initial Conditions.......................................................................................................... 64
Input/Output Ports ......................................................................................... 74
Pull-high Resistors................................................................................................................. 75
Port A Wake-up...................................................................................................................... 77
I/O Port Control Registers...................................................................................................... 77
Pin-remapping Functions ...................................................................................................... 79
Pin-remapping Registers........................................................................................................ 79
I/O Pin Structures................................................................................................................... 90
Programming Considerations ................................................................................................ 90
Rev. 1.60
3 November 24, 2015







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