Flash MCU. BH67F2470 Datasheet

BH67F2470 MCU. Datasheet pdf. Equivalent

BH67F2470 Datasheet
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Part BH67F2470
Description Glucose Meter Flash MCU
Feature BH67F2470; Glucose Meter Flash MCU with LCD BH67F2470 Revision: V1.10 Date: �Au�g�u��s�t�1��7,���2�0�1�7 BH67F.
Manufacture Holtek Semiconductor
Datasheet
Download BH67F2470 Datasheet




Holtek Semiconductor BH67F2470
Glucose Meter Flash MCU with LCD
BH67F2470
Revision: V1.10 Date: �Au�g�u��s�t�1��7,���2�0�1�7



Holtek Semiconductor BH67F2470
BH67F2470
Glucose Meter Flash MCU with LCD
Table of Contents
Features............................................................................................................. 7
CPU Features.......................................................................................................................... 7
Peripheral Features.................................................................................................................. 8
General Description.......................................................................................... 9
Block Diagram................................................................................................... 9
Pin Assignment............................................................................................... 10
Pin Description............................................................................................... 12
Absolute Maximum Ratings........................................................................... 17
D.C. Electrical Characteristics....................................................................... 17
Operating Voltage Characteristics.......................................................................................... 17
Operating Current Characteristics.......................................................................................... 18
Standby Current Characteristics............................................................................................ 19
A.C. Electrical Characteristics....................................................................... 20
High Speed Internal Oscillator Frequency Accuracy.............................................................. 20
Low Speed Internal Oscillator Characteristics....................................................................... 20
Operating Frequency Characteristic Curves.......................................................................... 21
System Start Up Time Characteristics .................................................................................. 21
Input/Output Characteristics......................................................................... 22
Memory Characteristics................................................................................. 23
LVR / LVD Electrical Characteristics............................................................. 23
OVP Characteristics....................................................................................... 24
LCD Characteristics....................................................................................... 25
OPA Electrical characteristics....................................................................... 26
Internal Reference Voltage Characteristics.................................................. 26
Analog Switch Electrical characteristics...................................................... 26
10-bit D/A Converter Electrical Characteristics........................................... 26
A/D Converter Electrical Characteristics...................................................... 27
Power-on Reset Characteristics.................................................................... 27
System Architecture....................................................................................... 28
Clocking and Pipelining.......................................................................................................... 28
Program Counter.................................................................................................................... 29
Stack...................................................................................................................................... 29
Arithmetic and Logic Unit – ALU............................................................................................ 30
Flash Program Memory.................................................................................. 31
Structure................................................................................................................................. 31
Special Vectors...................................................................................................................... 31
Look-up Table ........................................................................................................................ 32
Table Program Example......................................................................................................... 32
Rev. 1.10
2 August 17, 2017



Holtek Semiconductor BH67F2470
BH67F2470
Glucose Meter Flash MCU with LCD
In Circuit Programming – ICP................................................................................................ 33
In Application Programming – IAP......................................................................................... 34
On-Chip Debug Support – OCDS.......................................................................................... 42
RAM Data Memory.......................................................................................... 42
Structure................................................................................................................................. 42
Data Memory Addressing....................................................................................................... 43
General Purpose Data Memory............................................................................................. 43
Special Purpose Data Memory.............................................................................................. 43
Special Function Register Description......................................................... 45
Indirect Addressing Registers – IAR0, IAR1, IAR2................................................................ 45
Memory Pointers – MP0, MP1L, MP1H, MP2L, MP2H.......................................................... 45
Program Memory Bank Pointer – PBP................................................................................... 47
Accumulator – ACC ............................................................................................................... 47
Program Counter Low Register – PCL .................................................................................. 47
Look-up Table Registers – TBLP, TBHP, TBLH ..................................................................... 47
Status Register – STATUS .................................................................................................... 48
EEPROM Data Memory................................................................................... 50
EEPROM Data Memory Structure......................................................................................... 50
EEPROM Registers............................................................................................................... 50
Reading Data from the EEPROM.......................................................................................... 52
Writing Data to the EEPROM................................................................................................. 52
Write Protection...................................................................................................................... 52
EEPROM Interrupt................................................................................................................. 52
Programming Considerations................................................................................................. 53
Oscillators....................................................................................................... 54
Oscillator Overview................................................................................................................ 54
System Clock Configurations................................................................................................. 54
External Crystal/Ceramic Oscillator – HXT............................................................................ 55
Internal High Speed RC Oscillator – HIRC............................................................................ 56
External 32.768kHz Crystal Oscillator – LXT......................................................................... 56
Internal 32kHz Oscillator – LIRC............................................................................................ 57
Operating Modes and System Clocks.......................................................... 57
System Clocks....................................................................................................................... 57
System Operation Modes....................................................................................................... 58
Control Registers................................................................................................................... 59
Operating Mode Switching..................................................................................................... 62
Standby Current Considerations............................................................................................ 66
Wake-up................................................................................................................................. 66
Watchdog Timer.............................................................................................. 67
Watchdog Timer Clock Source............................................................................................... 67
Watchdog Timer Control Register.......................................................................................... 67
Watchdog Timer Operation.................................................................................................... 68
Rev. 1.10
3 August 17, 2017







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