HT45F2440
HT45F2440 is TWS Earbud Charging Case Flash MCU manufactured by Holtek Semiconductor.
Features
CPU Features
- Operating Voltage
- f SYS=8MHz: 1.8V~5.5V
- f SYS=12MHz: 2.7V~5.5V
- f SYS=16MHz: 3.3V~5.5V
- Up to 0.25μs instruction cycle with 16MHz system clock at VDD=5V
- Power down and wake-up functions to reduce power consumption
- Oscillator types
- External High Speed Crystal
- HXT
- Internal High Speed 8/12/16MHz RC
- HIRC
- External Low Speed 32.768k Hz Crystal
- LXT
- Internal Low Speed 32k Hz RC
- LIRC
- Multi-mode operation: FAST, SLOW, IDLE and SLEEP
- Fully integrated internal oscillators require no external ponents
- All instructions executed in 1~3 instruction cycles
- Table read instructions
- 115 powerful instructions
- 8-level subroutine nesting
- Bit manipulation instruction
Peripheral Features
- Flash Program Memory: 4K×16
- RAM Data Memory: 256×8
- True EEPROM Memory: 128×8
- Watchdog Timer function
- In Application Programming
- IAP
- 17 bidirectional I/O lines
- Two external interrupt lines shared with I/O pins
- Programmable I/O port source current for LED applications
- Multiple Timer Modules for time measure, pare match output, PWM output function or single pulse output function
- Serial Interfaces Module
- SIM for SPI or I2C munication
- Fully-duplex/half-duplex Universal Asynchronous Receiver and Transmitter Interface
- UART
- Software controlled LCD driver with 1/3 bias, 17-S/SSEG...
