HT45F3W datasheet(13/167 Pages) HOLTEK

13 / 167 page

Rev. 1.50

1�

De�e��e� 01� �01�

Rev. 1.50

De�e��e� 01� �01�

HT45F3W

R-Type Blood Pressure Meter Flash MCU

HT45F3W

R-Type Blood Pressure Meter Flash MCU

A.C. Characteristics

Ta= 25˚C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

fSYS

Syste� �lo�k (HXT)

�.�V~5.5V

—

400

—

4000

kHz

3.0V~5.5V

—

400

—

8000

kHz

4.5V~5.5V

—

400

—

1�000

kHz

fHIRC

Syste� �lo�k (HIRC)

3.0V/5.0V Ta=�5°C

-�%

+�%

MHz

3.0V/5.0V Ta=0~70°C

-5%

+5%

MHz

3.0V~5.5V Ta=0~70°C

-8%

+8%

MHz

3.0V~5.5V Ta=-40~85°C

-1�%

+1�% MHz

fERC

Syste� �lo�k (ERC)

5.0V

Ta=�5°C� R=1�0KΩ

-�%

+�%

MHz

5.0V

Ta=0~70°C� R=1�0KΩ

-5%

+5%

MHz

5.0V

Ta=-40~85°C� R=1�0KΩ

-7%

+7%

MHz

�.�V~5.5V Ta=-40~85°C� R=1�0KΩ

-11%

+11%

MHz

fLXT

Syste� �lo�k (LXT)

—

3�7�8

—

fTIMER

Ti�e� input f�equen�y (TCKn)

�.�V~5.5V

—

4000

kHz

3.0V~5.5V

—

8000

kHz

4.5V~5.5V

—

1�000

kHz

tWDTOSC

Wat�hdog os�illato� pe�iod

3.0V

—

180

μs

5.0V

—

3�

�5

130

μs

tSST

Syste� sta�t-up ti�e� pe�iod

—

Wake-up f�o� HALT

—

10�4

—

tSYS

tINT

Inte��upt pulse width

—

μs

HT45F3W Datasheet(PDF) 13 Page - Holtek Semiconductor Inc

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