HT45FH3T数据手册Holtek中文资料规格书

描述 Description

The device is a Flash Memory A/D type 8-bit high performance RISC architecture microcontroller. Offering users the convenience of Flash Memory multi-programming features, this device also includes a wide range of functions and features.

Analog features include a multi-channel 12-bit A/D converter, an over voltage protection function and a LDO regulator. Multiple and extremely flexible Timer Modules provide 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.

A full choice of HIRC and LIRC 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 applications such as electronic metering, environmental monitoring, handheld instruments, household appliances, electronically controlled tools, motor driving in addition to many others.

 

特性 Features

CPU Features
• Operating voltage:
fSYS= 4MHz: 2.2V~5.5V
• Up to 1us instruction cycle with 4MHz system clock at VDD=5V
• Power down and wake-up functions to reduce power consumption
• Oscillator:
- Internal 4MHz RC -- HIRC
- Internal 32kHz RC -- LIRC
• Fully integrated internal 4MHz oscillator requires no external components
• Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP
• All instructions executed in one or two instruction cycles
• Table read instructions
• 63 powerful instructions
• 4-level subroutine nesting
• Bit manipulation instruction

Peripheral Features
• Program Memory: 2Kx16
• Data Memory: 128x8
• Watchdog Timer function
• 7 bidirectional I/O lines
• One external interrupt line shared with I/O pin
• Multiple Timer Modules for time measure, input capture, compare match output, PWM output function or single pulse output function
• Over voltage protection (OVP) with interrupt
• Dual Time-Base functions for generation of fixed time interrupt signals
• 4-channel 12-bit resolution A/D converter
• Low voltage reset function (enabled @ 2.1V)
• Low voltage detect function
• One integrated LDO: 3V
• 4 level shift output pins
• Package type: 16-pin SSOP