HT68F03M/HT68F04M/HT66F03M/HT66F04M

1.5V Battery Flash Type

8-Bit MCU with EEPROM & DC-DC Converter

Rev. 1.10

1

May 24, 2010

Features

MCU Features

power consumption

SLEEP

cycles

capture, compare match output, PWM output or

single pulse output functions

time interrupt signal

DC-DC converter Features

General Description

This series of devices are Flash Memory type 8-bit high

performance RISC architecture microcontrollers. Offer-

ing users the convenience of Flash Memory

multi-programming features, these devices also include

a wide range of functions and features, among which is

their internal DC-DC Converter allowing low voltage op-

eration. In addition to their Flash Program Memory there

is also area of RAM Data Memory and 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 con-

verter and 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 oper-

ation is maintained in hostile electrical environments.

An extensive choice of oscillator functions is provided

including a fully integrated system oscillator which re-

quires 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 opera-

tion and minimise power consumption. The devices also

include flexible I/O programming features Time-Base

functions and a range of other features.

The internal PFM type step-up DC-DC Converter allows

the MCU to be powered from low voltage sources, and

has the advantages of high efficiency and low ripple.

With a fixed and accurate 3.0V output voltage and ex-

tremely low 0.7V start-up voltage, these MCU devices

will be especially suitable for battery-powered applica-

tions, portable handheld equipment etc.