HT82B45R
HT82B45R is I/O USB OTP MCU manufactured by Holtek Semiconductor.
Features
CPU Features
- Operating voltage
- VDD (MCU): f SYS=12MHz: 2.5V~5.5V
- VDD (USB mode): f SYS=6MHz: 2.2V~5.5V
- Up to 0.33μs instruction cycle with 12MHz system clock at VDD=5V
- Power down and wake-up functions to reduce power consumption
- Oscillator types
- Internal High Speed 12MHz RC
- HIRC
- Internal Low Speed 32k Hz RC
- LIRC
- Fully integrated internal oscillators require no external ponents
- Multi-mode operation: FAST, SLOW, IDLE and SLEEP
- 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
- Watchdog Timer function
- 35 bidirectional I/O lines
- Single 8-bit programmable timer/event counter with overflow interrupt
- Single 16-bit programmable timer/event counter with overflow interrupt and prescaler
- USB interface
- USB 2.0 low speed function
- Supports PS2 and USB modes
- Supports 3 endpoints including endpoint 0
- Supports a 3.3V LDO and an internal UDN 1.5kΩ pull-up resistor
- Internal 12MHz RC oscillator with ±1.5% accuracy for all USB modes
- Low voltage reset function
- Package types: Dice, 48-pin LQFP
Rev. 1.00
March 24, 2025
HT82B45R I/O USB OTP MCU
General Description
The device is an OTP type 8-bit high performance RISC architecture microcontroller designed for multiple I/O control product applications. For memory...
