HT45R2140
HT45R2140 is Linear Charger OTP MCU manufactured by Holtek Semiconductor.
Features
CPU Features
- Operating voltage
- f SYS=8MHz: 2.5V~4.2V
- f SYS=12MHz: 2.7V~4.2V
- f SYS=16MHz: 3.3V~4.2V
- Up to 0.25μs instruction cycle with 16MHz system clock at VDD=4.2V
- Power down and wake-up functions to reduce power consumption
- Oscillator types
- Internal High Speed 8/12/16MHz 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 1~3 instruction cycles
- Table read instructions
- 115 powerful instructions
- 8-level subroutine nesting
- Bit manipulation instruction
Peripheral Features
- OTP Program Memory: 4K×16
- Data Memory: 256×8
- OTP ROM Parameter Program function
- ORPP
- Watchdog Timer function
- 11 bidirectional I/O lines
- One external interrupt line shared with I/O pin
- Two Timer Modules for time measurement, capture input, pare match output, PWM output function or single pulse output function
- Pulse Width Modulator function
- 5 external channel 12-bit resolution A/D converter with Internal Reference Voltage VBG
- Dual Time Base functions for generation of fixed time interrupt signals
- Low voltage reset function
- Low voltage detect function
- Input voltage detect function
- Input maximum rating 20V
- Over voltage protection
- Under voltage lockout
- Linear charger
- Charging current up to 1A programmed through RSET when...
