HT45F77 datasheet(13/203 Pages) HOLTEK

13 / 203 page

Rev. 1.20

De�e��e� 1�� 201�

Rev. 1.20

De�e��e� 1�� 201�

HT45F77

Body Fat Scale Flash MCU

HT45F77

Body Fat Scale Flash MCU

Absolute Maximum Ratings

SupplyVoltage................................................................................................VSS−0.3VtoVSS+6.0V

InputVoltage..................................................................................................VSS−0.3VtoVDD+0.3V

StorageTemperature....................................................................................................-50˚Cto125˚C

OperatingTemperature..................................................................................................-40˚Cto85˚C

IOLTotal................................................................................................................................... 150mA

IOHTotal..................................................................................................................................-100mA

TotalPowerDissipation......................................................................................................... 500mW

Note:Thesearestressratingsonly.Stressesexceedingtherangespecifiedunder"AbsoluteMaximum

Ratings"maycausesubstantialdamagetothesedevices.Functionaloperationofthesedevicesat

otherconditionsbeyondthoselistedinthespecificationisnotimpliedandprolongedexposureto

extremeconditionsmayaffectdevicesreliability.

D.C. Characteristics

Ta=25°C

Symbol

Parameter

Test Conditions

Min.

Typ. Max. Unit

VDD

Conditions

VDD1

Ope�ating Voltage (HXT)

─

fSYS=8MHz

2.2

─

5.5

fSYS=12MHz

2.7

─

5.5

fSYS=1�MHz

�.5

─

5.5

VDD2

Ope�ating Voltage (HIRC)

─ fSYS=�.8MHz

2.2

─

5.5

IDD1

Ope�ating Cu��ent

(HXT� fSYS=fH�

fS=fSUB=fLXT o� fLIRC)

3V No load� fH=8MHz� LDO� �ha�ge pu�p�

LCD� ADC off� WDT ena�le

─

1.0

1.5

�A

─

2.5

�

�A

3V No load� fH=10MHz� LDO� �ha�ge pu�p�

LCD� ADC off� WDT ena�le

─

1.2

2.0

�A

─

2.8

�.5

�A

3V No load� fH=12MHz� LDO� �ha�ge pu�p�

LCD� ADC off� WDT ena�le

─

1.5

2.5

�A

─

3.5

5.5

�A

5V No load� f

=1�MHz� LDO� �ha�ge pu�p�

LCD� ADC off� WDT ena�le

─

�.5

7.0

�A

5V No load� f

=20MHz� LDO� �ha�ge pu�p�

LCD� ADC off� WDT ena�le

─

5.5

8.5

�A

IDD2

Ope�ating Cu��ent

(HIRC� fSYS=fH�

fS=fSUB=fLXT o� fLIRC)

3V No load� fH=�.8MHz� LDO� �ha�ge

pu�p� LCD� ADC off� WDT ena�le

─

0.7

1.2

�A

─

1.5

2.5

�A

3V No load� fH=�.8×2MHz� LDO� �ha�ge

pu�p� LCD� ADC off� WDT ena�le

─

1.2

2.0

�A

─

2.8

�.5

�A

3V No load� fH=�.8×3MHz� LDO� �ha�ge

pu�p� LCD� ADC off� WDT ena�le

─

1.8

3.0

�A

─

�.0

�A

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