Datasheet BP45F4NB, BP45FH4NB (Holtek) - 8

BP45F4NB/BP45FH4NB BP45F4NB/BP45FH4NB Power Bank Flash MCU Power Bank Flash MCU General Description
The devices are Flash Memory 8-bit high performance RISC architecture microcontrollers, specifically designed for Power Bank applications. For memory features, the Flash Memory offers users the convenience of multi-programming features. Other memory includes an area of RAM Data Memory. By using the In Application Programming technology, users have a convenient means to directly store their measured data in the Flash Program Memory as well as having the ability to easily update their application programs. Analog features include a multi-channel 12-bit A/D converter, an USB charge/discharge auto detection function and a LDO regulator. Multiple and extremely flexible Timer Modules provide timing, pulse generation and PWM generation functions. Communication with the outside world is catered for by including fully integrated SPI, I2C and UART interface functions, these popular interfaces which provide designers with a means of easy communication with external peripheral hardware. Protective features such as an internal Watchdog Timer, Low Voltage Reset and Low Voltage Detector coupled with excellent noise immunity and ESD protection ensure that reliable operation is maintained in hostile electrical environments. The devices also include fully integrated high and low speed oscillators which require no external components for their implementation. The ability to operate and switch dynamically between a range of operating modes using different clock sources gives users the ability to optimize microcontroller operation and minimize power consumption. The inclusion of flexible I/O programming features, Time-Base functions along with many other features ensure that the devices will find excellent use in different power bank applications. Circuitry specific to Power Bank applications is also fully integrated within the devices. These include functions such as over/under voltage protection, over current protection and USB auto detection. These features combine to ensure that a minimum of external components is required to implement Power Bank applications, providing the benefits of reduced component counts and reduced circuit board areas.
Selection Table
Most features are common to these devices, the main features distinguishing them are I/O count, Level Shift output pins and package types. The following table summarises the main features of each devices. As the devices exist in more than one package format, the tables reflect the situation for the package with the most pins.
Part No. V Program Data DD Memory Memory I/O Ext. Interrupt A/D USIM Time Base
BP45F4NB 26 2.6V~5.5V 4K×16 256×8 2 12-bit×11 √ 2 BP45FH4NB 21
Level Part No. Timer Module OCP OUVP Stacks USB LDO Shift Output Package Pins
BP45F4NB — — 24SSOP/28SSOP/28QFN 10-bit CTM×2 BP45FH4NB 10-bit PTM×1 2 1 8 2 √ AX/BX CX/DX 28SSOP Rev. 1.00 8 December 07, 2020 Rev. 1.00 9 December 07, 2020 Document Outline Features CPU Features Peripheral Features General Description Selection Table Block Diagram Pin Assignment Pin Description Level Shift Input/Output Relationship and Reset Condition Absolute Maximum Ratings D.C. Characteristics Operating Voltage Characteristics Operating Current Characteristics Standby Current Characteristics A.C. Characteristics High Speed Internal Oscillator – HIRC – Frequency Accuracy Low Speed Internal Oscillator Characteristics – LIRC Operating Frequency Characteristic Curves System Start Up Time Characteristics Input/Output Characteristics Input/Output (without Multi-power) D.C Characteristics Input/Output (with Multi-power) D.C Characteristics Memory Characteristics LVR/LVD Electrical Characteristics A/D Converter Electrical Characteristics Over/Under Voltage Protection Electrical Characteristics Over Current Protection Electrical Characteristics USB Auto Detection Electrical Characteristics LDO Regulator Electrical Characteristics Level Converter Electrical Characteristics Power-on Reset Characteristics System Architecture Clocking and Pipelining Program Counter Stack Arithmetic and Logic Unit – ALU Flash Program Memory Structure Special Vectors Look-up Table Table Program Example In Circuit Programming – ICP On-Chip Debug Support – OCDS In Application Programming – IAP Data Memory Structure Data Memory Addressing General Purpose Data Memory Special Purpose Data Memory Special Function Register Description Indirect Addressing Registers – IAR0, IAR1, IAR2 Memory Pointers – MP0, MP1L/MP1H, MP2L/MP2H Accumulator – ACC Program Counter Low Byte Register – PCL Look-up Table Registers – TBLP, TBHP, TBLH Option Memory Mapping Register – ORMC Status Register – STATUS Oscillators Oscillator Overview System Clock Configurations Internal High Speed RC Oscillator – HIRC Internal 32kHz Oscillator – LIRC Operating Modes and System Clocks System Clocks System Operation Modes Control Registers Operating Mode Switching Standby Current Considerations Wake-up Watchdog Timer Watchdog Timer Clock Source Watchdog Timer Control Register Watchdog Timer Operation Reset and Initialisation Reset Functions Reset Initial Conditions Input/Output Ports Pull-high Resistors Port A Wake-up I/O Port Control Registers I/O Port Power Source Control I/O Port Source Current Control Pin-shared Functions I/O Pin Structure Programming Considerations Timer Modules – TM Introduction TM Operation TM Clock Source TM Interrupts TM External Pins Programming Considerations Compact Type TM – CTM Compact Type TM Operation Compact Type TM Register Description Compact Type TM Operating Modes Periodic Type TM – PTM Periodic Type TM Operation Periodic Type TM Register Description Periodic Type TM Operation Modes Complementary PWM Output with Dead Time Dead Time Insertion Complementary PWM Registers Analog to Digital Converter A/D Converter Overview A/D Converter Register Description A/D Converter Reference Voltage A/D Converter Input Signals A/D Converter Operation Conversion Rate and Timing Diagram Summary of A/D Conversion Steps Programming Considerations A/D Conversion Function A/D Conversion Programming Examples Universal Serial Interface Module – USIM SPI Interface I2C Interface UART Interface Over Current Protection Over Current Protection Operation Over Current Protection Registers Input Voltage Range OCP OPA and Comparator Offset Calibration Over/Under Voltage Protection OUVP Circuit Operation OUVP Register Description OVP and UVP Comparator Offset calibration USB Auto Detection D1+/D1- and D2+/D2- for Auto Detection USB Auto Detection Registers Interrupts Interrupt Registers Interrupt Operation External Interrupts A/D Converter Interrupt Over Current Protection Interrupt Over Voltage Protection Interrupt Under Voltage Protection Interrupts Multi-function Interrupts Timer Module Interrupts USIM Interrupt Time Base Interrupts LVD Interrupt Interrupt Wake-up Function Programming Considerations Low Voltage Detector – LVD LVD Register LVD Operation Application Circuits Instruction Set Introduction Instruction Timing Moving and Transferring Data Arithmetic Operations Logical and Rotate Operation Branches and Control Transfer Bit Operations Table Read Operations Other Operations Instruction Set Summary Table Conventions Extended Instruction Set Instruction Definition Extended Instruction Definition Package Information 24-pin SSOP (150mil) Outline Dimensions 28-pin SSOP (150mil) Outline Dimensions SAW Type 28-pin QFN (4mm×4mm) Outline Dimensions