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
| Attribute | Value |
|---|---|
| Operating voltage |
|
| Up to 0.5μs instruction cycle with 8MHz system clock at VDD =5V | Available |
| Power down and wake-up functions to reduce power consumption | Available |
| Oscillator types |
|
| Multi-mode operation | Normal, Slow, Idle and Sleep |
| Fully integrated internal 8MHz oscillatorrequires no external components | Available |
| All instructions executed in one or two instruction cycles | Available |
| Table read instructions | Available |
| 63 powerful instructions | Available |
| 8-level subroutine nesting | Available |
| Bit manipulation instruction | Available |
Peripheral Features
| Attribute | Value |
|---|---|
| Flash Program Memory | 2Kx16 |
| RAM Data Memory | 128x8 |
| True EEPROM Memory | 64x8 |
| Watchdog Timer function | Available |
| 16 bidirectional I/O lines | Available |
| Dual pin-shared external interrupts | Available |
| Multiple Timer Modules for time measurement, input capture, compare match output or PWM output or single pulse output function | Available |
| Dual Time-Base functions for generation of fixed time interrupt signals | Available |
| 8 channel 12-bit resolution A/D converter with Internal Reference Voltage VBG | Available |
| Infrared LED constant-current driver with a driving current of up to 0.388A | Available |
| Infrared receiver circuit |
|
| High voltage driver control and high voltage driver combination | Available |
| Over Current Protection function | Available |
| Integrated Battery Voltage Detection | Available |
| Low voltage reset function | Available |
| Low voltage detect function | Available |
| Flash program memory can be re-programmed up to 100,000 times | Available |
| Flash program memory data retention > 10 years | Available |
| True EEPROM data memory can be re-programmed up to 1,000,000 times | Available |
| True EEPROM data memory data retention > 10 years | Available |
| Package types | 16-pin NSOP, 24-pin SSOP |
Resources
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