HT68FU50 datasheet(8/244 Pages) HOLTEK

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HT68F20/HT68F30/HT68F40/HT68F50/HT68F60

HT68FU30/HT68FU40/HT68FU50/HT68FU60

Enhanced I/O Flash Type MCU 8-Bit MCU with EEPROM

Rev. 1.50

March 15, 2011

General Description

The HT68FXX series of devices are Flash Memory I/O

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.

Multiple and extremely flexible Timer Modules provide

timing, pulse generation and PWM generation func-

tions. Analog features include dual comparator func-

tions. Communication with the outside world is catered

for by including fully integrated SPI or I

2C interface func-

tions, two popular interfaces which provide designers

with a means of easy communication with external pe-

ripheral hardware. Protective features such as an inter-

nal 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 oscilla-

tor functions are provided including a fully integrated

system oscillator which requires no external compo-

nents 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 mini-

mise power consumption.

The UART module is contained in the HT68FUx0 series of

devices. It can support the applications such as data com-

munication networks between microcontrollers, low-cost

data links between PCs and peripheral devices, portable

and battery operated device communication, etc.

The inclusion of flexible I/O programming features,

Time-Base functions along with many other features en-

sure that the devices will find excellent use in applica-

tions such as electronic metering, environmental

monitoring, handheld instruments, household appli-

ances, electronically controlled tools, motor driving in

addition to many others.

Features

CPU Features

· Operating Voltage:

SYS= 8MHz: 2.2V~5.5V

SYS= 12MHz: 2.7V~5.5V

SYS= 20MHz: 4.5V~5.5V

· Up to 0.2ms instruction cycle with 20MHz system

clock at V

DD=5V

· Power down and wake-up functions to reduce power

consumption

· Five oscillators:

External Crystal -- HXT

External 32.768kHz Crystal -- LXT

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 12-level subroutine nesting

· Bit manipulation instruction

Peripheral Features

· Flash Program Memory: 1K´14 ~ 12K´16

· RAM Data Memory: 64´8 ~ 576´8

· EEPROM Memory: 32´8~256´8

· Watchdog Timer function

· Up to 50 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

· Serial Interfaces Module - SIM for SPI or I2C

· Dual Comparator functions

· Dual Time-Base functions for generation of fixed time

interrupt signals

· Low voltage reset function

· Low voltage detect function

· Optional peripheral -- UART module for fully duplex

asynchronous communication

· Wide range of available package types

Technical Document

· Application Note

- HA0075E MCU Reset and Oscillator Circuits Application Note

HT68FU50 数据表(PDF) 8 Page - Holtek Semiconductor Inc

HT68FU50 数据表(HTML) 8 Page - Holtek Semiconductor Inc

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