Flash MCU. BH67F2260 Datasheet

BH67F2260 MCU. Datasheet pdf. Equivalent

BH67F2260 Datasheet
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Part BH67F2260
Description R-Sensor Blood Pressure Meter Flash MCU
Feature BH67F2260; R-Sensor Blood Pressure Meter Flash MCU with LCD BH67F2260/BH67F2270 Revision: V1.10 Date: �Au�g�u��.
Manufacture Holtek Semiconductor
Datasheet
Download BH67F2260 Datasheet




Holtek Semiconductor BH67F2260
R-Sensor Blood Pressure Meter Flash MCU with LCD
BH67F2260/BH67F2270
Revision: V1.10 Date: �Au�g�u��s�t�1��7,���2�0�1�7



Holtek Semiconductor BH67F2260
BH67F2260/BH67F2270
R-Sensor Blood Pressure Meter Flash MCU with LCD
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................................................................................................... 13
Absolute Maximum Ratings............................................................................... 22
D.C. Characteristics............................................................................................ 22
Operating Voltage Characteristics...............................................................................................22
Standby Current Characteristics.................................................................................................23
Operating Current Characteristics...............................................................................................24
A.C. Characteristics............................................................................................ 25
High Speed Internal Oscillator – HIRC – Frequency Accuracy...................................................25
Low Speed Internal Oscillator Characteristics – LIRC................................................................25
Low Speed Crystal Oscillator Characteristics – LXT...................................................................26
Operating Frequency Characteristic Curves...............................................................................26
System Start-up Time Characteristics.........................................................................................26
Input/Output Characteristics............................................................................. 27
Memory Characteristics..................................................................................... 28
A/D Converter Electrical Characteristics.......................................................... 28
LVR/LVD Electrical Characteristics................................................................... 29
OPA Electrical Characteristics.......................................................................... 30
LDO Electrical Characteristics.......................................................................... 30
LCD Electrical Characteristics.......................................................................... 30
Power-on Reset Characteristics........................................................................ 31
System Architecture........................................................................................... 32
Clocking and Pipelining...............................................................................................................32
Program Counter.........................................................................................................................33
Stack...........................................................................................................................................33
Arithmetic and Logic Unit – ALU.................................................................................................34
Flash Program Memory...................................................................................... 35
Structure......................................................................................................................................35
Special Vectors...........................................................................................................................35
Look-up Table..............................................................................................................................35
Table Program Example..............................................................................................................36
In Circuit Programming – ICP.....................................................................................................38
Rev. 1.10
2 August 17, 2017



Holtek Semiconductor BH67F2260
BH67F2260/BH67F2270
R-Sensor Blood Pressure Meter Flash MCU with LCD
On-Chip Debug Support – OCDS...............................................................................................39
In Application Programming – IAP..............................................................................................39
Flash Memory Read/Write Procedure.........................................................................................44
Data Memory....................................................................................................... 47
Structure......................................................................................................................................47
Data Memory Addressing............................................................................................................48
General Purpose Data Memory..................................................................................................48
Special Purpose Data Memory...................................................................................................48
Special Function Register Description............................................................. 51
Indirect Addressing Registers – IAR0, IAR1, IAR2.....................................................................51
Memory Pointers – MP0, MP1L, MP1H, MP2L, MP2H...............................................................51
Program Memory Bank Pointer – PBP........................................................................................53
Accumulator – ACC.....................................................................................................................53
Program Counter Low Register – PCL........................................................................................53
Look-up Table Registers – TBLP, TBHP, TBLH...........................................................................54
Status Register – STATUS..........................................................................................................54
EEPROM Data Memory....................................................................................... 56
EEPROM Data Memory Structure..............................................................................................56
EEPROM Registers....................................................................................................................56
Reading Data from the EEPROM...............................................................................................58
Writing Data to the EEPROM......................................................................................................58
Write Protection...........................................................................................................................58
EEPROM Interrupt......................................................................................................................58
Programming Considerations......................................................................................................59
Oscillators........................................................................................................... 60
Oscillator Overview.....................................................................................................................60
System Clock Configurations......................................................................................................60
External Crystal/Ceramic Oscillator – HXT.................................................................................61
Internal High Speed RC Oscillator – HIRC.................................................................................62
External 32.768kHz Crystal Oscillator – LXT..............................................................................62
Internal 32kHz Oscillator – LIRC.................................................................................................63
Operating Modes and System Clocks.............................................................. 64
System Clocks............................................................................................................................64
System Operation Modes............................................................................................................65
Control Registers........................................................................................................................66
Operating Mode Switching..........................................................................................................68
Standby Current Considerations.................................................................................................72
Wake-up......................................................................................................................................72
Watchdog Timer.................................................................................................. 73
Watchdog Timer Clock Source....................................................................................................73
Watchdog Timer Control Register...............................................................................................73
Watchdog Timer Operation.........................................................................................................74
Rev. 1.10
3 August 17, 2017







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