HT45R5Q-3
HT45R5Q-3 is Battery Charger OTP MCU manufactured by Holtek Semiconductor.
Features
CPU Features
- Operating voltage
- f SYS=8MHz: 2.2V~5.5V
- Up to 0.5μs instruction cycle with 8MHz system clock at VDD=5V
- Power down and wake-up functions to reduce power consumption
- Oscillator types
- Internal High Speed 8MHz RC
- HIRC
- Internal Low Speed 32k Hz RC
- LIRC
- Multi-mode operation: FAST, SLOW, IDLE and SLEEP
- Fully integrated internal high speed and low speed RC 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
- OTP Program Memory: 4K×16
- RAM Data Memory: 256×8
- OTP ROM parameter program
- ORPP
- Watchdog Timer function
- 23 bidirectional I/O lines
- Two pin-shared external interrupts
- Multiple Timer Modules for time measurement, input capture, pare match output or PWM output or single pulse output function
- Dual Time-Base functions for generation of fixed time interrupt signals
- Serial Interface Module
- SIM, for SPI or I2C munication
- Fully-duplex / Half-duplex Universal Asynchronous Receiver and Transmitter Interface
- UART
- 10 external channel 12-bit resolution A/D converter
- Battery charger circuit
- 14-bit D/A Converter and OPA0 are used for constant current control
- 14-bit D/A Converter and OPA1 are used for constant voltage control
- OPA2 is 20/40 times amplifier for current sense
- 16-bit Cyclic Redundancy Check Unit
- Low voltage reset function
- Package types: 24/28-pin...
