HT66F03/HT66F04/HT68F03/HT68F04 -- Small Package Enhanced Flash Type 8-Bit MCU with EEPROM

General Description

The devices are Flash Memory type 8-bit high performance RISC architecture microcontrollers. Offering users the convenience of Flash Memory multi-programming features, these devices also include 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 and a comparator functions. 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 HXT, LXT, ERC, 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 minimize power consumption.
The inclusion of flexible I/O programming features, Time-Base functions along with many other features ensure that the devices 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.

Features

CPU Features

Operating Voltage:
fSYS= 8MHz: 2.2V~5.5V
fSYS= 12MHz: 2.7V~5.5V
fSYS= 20MHz: 4.5V~5.5V
Up to 0.2us instruction cycle with 20MHz system clock at VDD=5V
Power down and wake-up functions to reduce power consumption
Five oscillators:
External high speed xtal
External 32.768kHz xtal
External RC
Internal high speed -- no external components
Internal 32kHz -- no external components
Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP
Fully integrated internal 4MHz, 8MHz and 12MHz oscillator requires no external components
All instructions executed in one or two instruction cycles
Table read instructions
63 powerful instructions
Up to 8 subroutine nesting levels
Bit manipulation instruction

Peripheral Features

Flash Program Memory: 1Kx14 ~ 2Kx15
RAM Data Memory: 64x8 ~ 96x8
EEPROM Memory: 64x8
Watchdog Timer function
Up to 8 bidirectional I/O lines
External interrupt line shared with I/O pin
Multiple Timer Module for time measure, input capture, compare match output, PWM output or single pulse output functions
Comparator function
Dual Time-Base functions for generation of fixed time interrupt signals
Low voltage reset function
Low voltage detect function
Multi-channel 12-bit resolution A/D converter
Package types: 10-pin MSOP, 16-pin NSOP