HT45F5V

SPWM Inverter Output-end Flash MCU

General Information

The HT45F5V is an ASSP MCU specifically designed for SPWM inverter output-end applications. Offering users the convenience of Flash Memory multi-programming features, the 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 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, a sine wave PWM generator, an AC power detector. Multiple and extremely flexible Timer Modules provide timing, pulse generation and PWM generation functions. A UART module is also contained in the device. It can support applications such as data communication networks between microcontrollers, low-cost data links between PCs and peripheral devices, portable and battery operated device communication, etc. 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. With regard to power, the protection functions also include Over Current Protection and Over Voltage Protection.

A full choice of external and internal oscillator functions are 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.

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 SPWM inverter output-end application area.

CPU Features

Operating Voltage

fSYS =20MHz: 4.0V~5.5V

Up to 0.2μs instruction cycle with 20MHz system clock at VDD =5VAvailable
Power down and wake-up functions to reduce power consumptionAvailable
Three oscillators
  • - External Crystal – HXT
  • - Internal 16MHz RC – HIRC
  • - Internal 32kHz RC – LIRC
Multi-mode operation

NORMAL, SLOW, IDLE and SLEEP

Fully integrated internal 16MHz oscillator requires no external componentsAvailable
All instructions executed in one or two instruction cyclesAvailable
Table read instructionsAvailable
115 powerful instructionsAvailable
6-level subroutine nestingAvailable
Bit manipulation instructionAvailable

Peripheral Features

Flash Program Memory

4K×16

RAM Data Memory

256×8

EEPROM Memory

64×8

Watchdog Timer functionAvailable
24 bidirectional I/O linesAvailable
Single pin-shared external interruptAvailable
Multiple Timer Module for time measure, input capture, compare match output, PWM output or single pulse output function (10-bit CTM×2, 16-bit STM×1)Available
Dual Time-Base functions for generation of fixed time interrupt signalsAvailable
Multi-channel 12-bit resolution A/D converterAvailable
Over Current Protection functionAvailable
Over Voltage Protection functionAvailable
Sine-Wave PWM generator functionAvailable
AC Zero Cross Detector functionAvailable
Low voltage reset functionAvailable
Low voltage detect functionAvailable
UART module for full duplex asynchronous communicationAvailable
Package types

24/28-pin SSOP

Resources

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