HT45F3W datasheet(51/167 Pages) HOLTEK

51 / 167 page

Rev. 1.50

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

TB CK

Co nf ig ur at io n Op ti on

Ti me B as e

WD T

HX T

ER C

HI RC

LI RC

LX T

Hi gh S peed

Os ci ll at or

Lo w Sp ee d

Os ci ll at or

f H

Hi gh S peed O sc ill at or

Co nf ig ur at io n Op ti on

f H /6 4

f H /3 2

f H /1 6

f H /8

f H /4

f H /2

6- st age Pr e sca l er

f L

f SU B

Lo w Sp eed Os ci ll at or

Co nf ig ur at io n Op ti on

f SYS

HL CL K,

CK S2 ~C KS 0 bi ts

Fa s t W ak e- up f ro m SL EEP Mo de o r

ID LE M ode Co nt ro l ( fo r HX T onl y)

f TB C

f SYS /4

f TB

f SYS /4

f SU B

f S

f SU B

4K Hz

LC D Dr iv er

f SU B

Cl oc k S our ce

Se l ec ti on

SP I0 /S PI 1

f SYS

¸ 8

Note:WhenthesystemclocksourcefSYSisswitchedtofLfromfH,thehighspeedoscillationwillstoptoconserve

thepower.ThusthereisnofH~fH/64forperipheralcircuittouse.

TogetherwithfSYS/4itisalsousedasoneoftheclocksourcesfortheWatchdogtimer.ThefTBCclockis

usedasasourcefortheTimeBaseinterruptfunctionsandfortheTMs.ThefSUBisusedastheLCDsource.

HT45F3W Datasheet(PDF) 51 Page - Holtek Semiconductor Inc

HT45F3W Datasheet(HTML) 51 Page - Holtek Semiconductor Inc

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