Flash MCU. BH66F2470 Datasheet

BH66F2470 MCU. Datasheet pdf. Equivalent

BH66F2470 Datasheet
Recommendation BH66F2470 Datasheet
Part BH66F2470
Description Glucose Meter Flash MCU
Feature BH66F2470; Glucose Meter Flash MCU BH66F2470 Revision: V1.40 Date: December 02, 2019 BH66F2470 Glucose Meter F.
Manufacture Holtek Semiconductor
Datasheet
Download BH66F2470 Datasheet





Holtek Semiconductor BH66F2470
Glucose Meter Flash MCU
BH66F2470
Revision: V1.40 Date: December 02, 2019



Holtek Semiconductor BH66F2470
BH66F2470
Glucose Meter Flash MCU
Table of Contents
Features............................................................................................................. 7
CPU Features.......................................................................................................................... 7
Peripheral Features.................................................................................................................. 8
General Description.......................................................................................... 9
Block Diagram................................................................................................. 10
Pin Assignment................................................................................................11
Pin Description............................................................................................... 12
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
Low Speed Crystal Oscillator Characteristics – LXT.............................................................. 19
Operating Frequency Characteristic Curves.......................................................................... 19
System Start Up Time Characteristics .................................................................................. 20
Input/Output Characteristics......................................................................... 21
Memory Characteristics................................................................................. 22
LVD/LVR Electrical Characteristics............................................................... 22
OVP Characteristics....................................................................................... 23
OPA Electrical Characteristics...................................................................... 23
Internal Reference Voltage Characteristics.................................................. 24
Analog Switch Electrical Characteristics..................................................... 24
10-bit D/A Converter Electrical Characteristics........................................... 24
A/D Converter Electrical Characteristics...................................................... 25
Power-on Reset Characteristics.................................................................... 25
System Architecture....................................................................................... 26
Clocking and Pipelining.......................................................................................................... 26
Program Counter.................................................................................................................... 27
Stack...................................................................................................................................... 27
Arithmetic and Logic Unit – ALU............................................................................................ 28
Flash Program Memory.................................................................................. 29
Structure................................................................................................................................. 29
Special Vectors...................................................................................................................... 29
Look-up Table......................................................................................................................... 30
Table Program Example......................................................................................................... 30
Rev. 1.40
2 December 02, 2019



Holtek Semiconductor BH66F2470
BH66F2470
Glucose Meter Flash MCU
In Circuit Programming – ICP................................................................................................ 31
On-Chip Debug Support – OCDS.......................................................................................... 32
In Application Programming – IAP......................................................................................... 33
Data Memory................................................................................................... 40
Structure................................................................................................................................. 40
Data Memory Addressing....................................................................................................... 41
General Purpose Data Memory............................................................................................. 41
Special Purpose Data Memory.............................................................................................. 41
Special Function Register Description......................................................... 43
Indirect Addressing Registers – IAR0, IAR1, IAR2................................................................ 43
Memory Pointers – MP0, MP1L, MP1H, MP2L, MP2H.......................................................... 43
Program Memory Bank Pointer – PBP................................................................................... 45
Accumulator – ACC................................................................................................................ 45
Program Counter Low Register – PCL................................................................................... 45
Look-up Table Registers – TBLP, TBHP, TBLH...................................................................... 45
Status Register – STATUS..................................................................................................... 46
EEPROM Data Memory................................................................................... 48
EEPROM Data Memory Structure......................................................................................... 48
EEPROM Registers............................................................................................................... 48
Reading Data from the EEPROM.......................................................................................... 50
Writing Data to the EEPROM................................................................................................. 50
Write Protection...................................................................................................................... 50
EEPROM Interrupt................................................................................................................. 50
Programming Considerations................................................................................................. 51
Oscillators....................................................................................................... 52
Oscillator Overview................................................................................................................ 52
System Clock Configurations................................................................................................. 52
External Crystal/Ceramic Oscillator – HXT............................................................................ 53
Internal High Speed RC Oscillator – HIRC............................................................................ 54
External 32.768kHz Crystal Oscillator – LXT......................................................................... 54
Internal 32kHz Oscillator – LIRC............................................................................................ 55
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
Rev. 1.40
3 December 02, 2019





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