Flash MCU. BH66F2650 Datasheet

BH66F2650 MCU. Datasheet pdf. Equivalent

BH66F2650 Datasheet
Recommendation BH66F2650 Datasheet
Part BH66F2650
Description Body Fat Measurment Flash MCU
Feature BH66F2650; Body Fat Measurment Flash MCU BH66F2650/BH66F2660 Revision: V1.10 Date: �J�a�n�u�a�r�y�0��4,���2�0�1.
Manufacture Holtek Semiconductor
Datasheet
Download BH66F2650 Datasheet




Holtek Semiconductor BH66F2650
Body Fat Measurment Flash MCU
BH66F2650/BH66F2660
Revision: V1.10 Date: �J�a�n�u�a�r�y�0��4,���2�0�1�8



Holtek Semiconductor BH66F2650
BH66F2650/BH66F2660
Body Fat Measurment Flash MCU
Table of Contents
Features................................................................................................................. 7
CPU Features...............................................................................................................................7
Peripheral Features.......................................................................................................................7
General Description.............................................................................................. 8
Selection Table...................................................................................................... 9
Block Diagram....................................................................................................... 9
Pin Assignment................................................................................................... 10
Pin Description................................................................................................... 11
Absolute Maximum Ratings............................................................................... 15
D.C. Characteristics............................................................................................ 15
Operating Voltage Characteristics...............................................................................................15
Standby Current Characteristics.................................................................................................16
Operating Current Characteristics...............................................................................................17
A.C. Characteristics............................................................................................ 18
High Speed Internal Oscillator – HIRC – Frequency Accuracy...................................................18
Low Speed Internal Oscillator Characteristics – LIRC................................................................18
Operating Frequency Characteristic Curves...............................................................................19
System Start Up Time Characteristics........................................................................................19
Input/Output Characteristics............................................................................. 20
Memory Characteristics..................................................................................... 22
LVD/LVR Electrical Characteristics................................................................... 22
24-bit A/D Converter Electrical Characteristics............................................... 23
12-bit D/A Converter Electrical Characteristics............................................... 24
Operational Amplifier Electrical Characteristics (Body Fat Circuit).............. 24
Power-on Reset Characteristics........................................................................ 25
System Architecture........................................................................................... 25
Clocking and Pipelining...............................................................................................................25
Program Counter.........................................................................................................................26
Stack...........................................................................................................................................27
Arithmetic and Logic Unit – ALU.................................................................................................27
Flash Program Memory...................................................................................... 28
Structure......................................................................................................................................28
Special Vectors...........................................................................................................................28
Look-up Table..............................................................................................................................29
Table Program Example..............................................................................................................29
In Circuit Programming – ICP.....................................................................................................30
On-Chip Debug Support – OCDS...............................................................................................31
In Application Programming – IAP..............................................................................................31
Rev. 1.10
2 January 04, 2018



Holtek Semiconductor BH66F2650
BH66F2650/BH66F2660
Body Fat Measurment Flash MCU
RAM Data Memory.............................................................................................. 40
Structure......................................................................................................................................40
Data Memory Addressing............................................................................................................41
General Purpose Data Memory..................................................................................................41
Special Purpose Data Memory...................................................................................................41
Special Function Register Description............................................................. 44
Indirect Addressing Registers – IAR0, IAR1, IAR2.....................................................................44
Memory Pointers – MP0, MP1L, MP1H, MP2L, MP2H...............................................................44
Program Memory Bank Pointer – PBP........................................................................................46
Accumulator – ACC ....................................................................................................................46
Program Counter Low Register – PCL .......................................................................................46
Look-up Table Registers – TBLP, TBHP, TBLH ..........................................................................46
Status Register – STATUS .........................................................................................................47
EEPROM Data Memory....................................................................................... 49
EEPROM Data Memory Structure..............................................................................................49
EEPROM Registers....................................................................................................................49
Reading Data from the EEPROM...............................................................................................51
Writing Data to the EEPROM......................................................................................................51
Write Protection...........................................................................................................................51
EEPROM Interrupt......................................................................................................................51
Programming Considerations......................................................................................................52
Oscillators........................................................................................................... 53
Oscillator Overview ....................................................................................................................53
System Clock Configurations .....................................................................................................53
External High Speed Crystal Oscillator − HXT............................................................................54
Internal RC Oscillator − HIRC.....................................................................................................55
External 32.768kHz Crystal Oscillator − LXT..............................................................................55
Internal 32kHz Oscillator − LIRC.................................................................................................56
Operating Modes and System Clocks.............................................................. 56
System Clocks............................................................................................................................56
System Operation Modes............................................................................................................57
Control Registers........................................................................................................................58
Operating Mode Switching..........................................................................................................61
Standby Current Considerations.................................................................................................65
Wake-up......................................................................................................................................65
Watchdog Timer.................................................................................................. 66
Watchdog Timer Clock Source....................................................................................................66
Watchdog Timer Control Register...............................................................................................66
Watchdog Timer Operation.........................................................................................................67
Reset and Initialisation....................................................................................... 68
Reset Functions..........................................................................................................................68
Reset Initial Conditions ..............................................................................................................72
Rev. 1.10
3 January 04, 2018







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