HT66F0174 datasheet(13/115 Pages) HOLTEK

13 / 115 page

Rev. 1.00

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Rev. 1.00

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HT66F0172/HT66F0174

Enhanced A/D Flash 8-Bit MCU

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

IOL

I/O Port Sink C�rrent

�V

VOL=0.1VDD

—

VOL=0.1VDD

�0

—

IOH

I/O Port So�rce C�rrent

�V

VOH=0.9VDD

-�

-4

—

VOH=0.9VDD

-5

-10

—

RPH

P��-high Resistance for I/O

Ports

�V

—

�0

100

kΩ

—

�0

kΩ

A.C. Characteristics

Ta= 25˚C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

fCPU

Operating C�ock

�.�V~5.5V

—

MHz

�.7V~5.5V

—

1�

MHz

4.5V~5.5V

—

�0

MHz

fSYS

S�stem C�ock (HXT)

�.�V~5.5V

—

0.4

—

MHz

�.7V~5.5V

—

0.4

—

1�

MHz

4.5V~5.5V

—

0.4

—

�0

MHz

fHIRC

S�stem C�ock (HIRC)

�V/5V

Ta = �5°C

-�%

�%

MHz

�V/5V

Ta = 0°C ~ 70°C

-5%

MHz

�.�V~5.5V Ta = 0°C ~ 70°C

-7%

MHz

�.�V~5.5V Ta = -40°C ~ 85°C

-10%

10%

MHz

fLIRC

S�stem C�ock (LIRC)

Ta = �5°C

-10%

��

+10%

kHz

�.�V~5.5V Ta = -40°C ~ 85°C

-�0%

��

+60%

kHz

tTIMER

TCKn Inp�t P��se Width

—

0.�

—

μs

tINT

Interr�pt P��se Width

—

μs

tEERD

EEPROM Read Time

—

�

tSYS

tEEWR

EEPROM Write Time

—

�

tSST

S�stem Start-�p Timer Period

(Power On Reset)

—

1�8

—

tSYS

S�stem Start-�p Timer Period

(Wake-�p from HALT�

fSYS off at HALT State)

—

fSYS=HIRC

—

S�stem Start-�p Timer Period

(Wake-�p from HALT�

fSYS off at HALT State)

—

fSYS=LIRC

—

�

—

S�stem Start-�p Timer Period

(Wake-�p from HALT�

fSYS on at HALT State)

—

�

—

tRSTD

S�stem Reset De�a� Time

(Power On Reset� LVR Reset�

LVR S/W Reset (LVRC)�

WDT S/W Reset (WDTC))

—

�5

100

S�stem Reset De�a� Time

(WDT Norma� Reset)

—

8.�

16.7

��.�

Note:1.tSYS=1/fSYS

2.TomaintaintheaccuracyoftheinternalHIRCoscillatorfrequency,a0.1μFdecouplingcapacitorshould

beconnectedbetweenVDDandVSSandlocatedasclosetothedeviceaspossible.

HT66F0174 Datasheet(PDF) 13 Page - Holtek Semiconductor Inc

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