HT66F13/HT66F14/HT66F15 -- Enhanced A/D Flash Type MCU

General Description

TheHT66F1x series of devices are Flash Memory A/D 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 for application program data storage.

Analog feature includes a multi-channel 12-bit A/D converter. 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, 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 minimise 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 0.2µs instruction cycle with 20MHz system clock at VDD=5V
  • Power down and wake-up functions to reduce power consumption
  • Five oscillators:
    External Crystal - HXT
    External RC - ERC
    Internal RC - HIRC
    Internal 32kHz RC - LIRC
  • 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-level subroutine nesting
  • Bit manipulation instruction

Peripheral Features

  • Flash Program Memory: 1Kx14 ~ 4Kx15 RAM Data Memory: 64x8 ~ 192x8
  • Watchdog Timer function
  • Up to 26 bidirectional I/O lines
  • Software controlled 4-SCOM lines LCD driver with 1/2 bias
  • Multiple pin-shared external interrupts
  • Multiple Timer Module for time measure, input capture, compare match output, PWM output or single pulse output function
  • Single Time-Base function for generation of fixed time interrupt signal
  • 4 channels 12-bit A/D converter
  • Low voltage reset function
  • Low voltage detect function
  • Wide range of available package types

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