HT45R5Q-2
HT45R5Q-2 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 oscillators require no external ponents
- All instructions executed in one or two instruction cycles
- Table read instructions
- 61 powerful instructions
- 6-level subroutine nesting
- Bit manipulation instruction
Peripheral Features
- OTP Program Memory: (2K-16)×16
- RAM Data Memory: 128×8
- OTP ROM Parameter Program function
- ORPP
- Watchdog Timer function
- 11 bidirectional I/O lines
- One pin-shared external interrupt
- Single 8-bit programmable Timer/Event Counter
- Dual Time Base functions for generation of fixed time interrupt signals
- 5 external channel 12-bit resolution A/D converter
- Battery charger circuit
- 12-bit D/A Converter and OPA0 are used for constant current control
- 12-bit D/A Converter and OPA1 are used for constant voltage control
- OPA2 is 20 times amplifier for current sense
- Low voltage reset function
- Package type: 16-pin NSOP
Rev. 1.40
December 08, 2025
HT45R5Q-2 Battery Charger OTP MCU
General...
