HT45F3230

Proximity Sensing/Motor Driving Flash MCU

General Information

The device is an A/D Flash Memory type 8-bit high performance RISC architecture microcontroller with integrated functions for Proximity Sensing/Motor Driving applications. Offering users the convenience of Flash Memory multi-programming features, this device also includes a wide range of functions and features. Other memory includes an area of RAM Data Memory as well as an area of true EEPROM memory for storage of non-volatile data such as serial numbers, calibration data etc.

Analog features include a multi-channel 12-bit A/D converter, two operational amplifiers, a comparator and other circuits specifically designed for Proximity Sensing/Motor Driving applications. With regard to internal timers, the device includes multiple and extremely flexible Timer Modules providing functions for timing, pulse generation and PWM generation functions. Protective features such as an internal Watchdog Timer, Low Voltage Reset and Low Voltage Detector coupled with excellent noise immunity and ESD protection ensure that reliable operation is maintained in hostile electrical environments. Other protection features also includes over current protection function.

A full choice of internal low and high speed oscillator functions is provided including a fully integrated system oscillator which requires no external components for its implementation. The ability to operate and switch dynamically between a range of operating modes using different clock sources gives users the ability to optimise microcontroller operation and minimise power consumption.

This device contains a high voltage driver control circuit and a high voltage driver combination circuit as well as high voltage power supply detection. The inclusion of flexible I/O programming features, Time-Base functions along with many other features ensure that the device will find excellent use in various Proximity Sensing/Motor Driving products.

 

CPU Features

Operating voltage
  • - VDD =2.2V~5.5V
  • - VBAT =3V~12V
Up to 0.5μs instruction cycle with 8MHz system clock at VDD =5VAvailable
Power down and wake-up functions to reduce power consumptionAvailable
Oscillator types
  • - Internal High Speed RC -- HIRC
  • - Internal 32kHz RC -- LIRC
Multi-mode operation

Normal, Slow, Idle and Sleep

Fully integrated internal 8MHz oscillatorrequires no external componentsAvailable
All instructions executed in one or two instruction cyclesAvailable
Table read instructionsAvailable
63 powerful instructionsAvailable
8-level subroutine nestingAvailable
Bit manipulation instructionAvailable

Peripheral Features

Flash Program Memory

2Kx16

RAM Data Memory

128x8

True EEPROM Memory

64x8

Watchdog Timer functionAvailable
16 bidirectional I/O linesAvailable
Dual pin-shared external interruptsAvailable
Multiple Timer Modules for time measurement, input capture, compare match output or PWM output or single pulse output functionAvailable
Dual Time-Base functions for generation of fixed time interrupt signalsAvailable
8 channel 12-bit resolution A/D converter with Internal Reference Voltage VBGAvailable
Infrared LED constant-current driver with a driving current of up to 0.388AAvailable
Infrared receiver circuit
  • - Two Operational Amplifiers
  • - One Comparator
High voltage driver control and high voltage driver combinationAvailable
Over Current Protection functionAvailable
Integrated Battery Voltage DetectionAvailable
Low voltage reset functionAvailable
Low voltage detect functionAvailable
Flash program memory can be re-programmed up to 100,000 timesAvailable
Flash program memory data retention > 10 yearsAvailable
True EEPROM data memory can be re-programmed up to 1,000,000 timesAvailable
True EEPROM data memory data retention > 10 yearsAvailable
Package types

16-pin NSOP, 24-pin SSOP

Resources

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