HT45F3W datasheet(11/167 Pages) HOLTEK

11 / 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

Pin Name

Function

OPT

I/T

O/T

Description

SEG8~SEG19

SEGn

—

SEG LCD SEG8~SEG19 output

COM0~COM3

COMn

—

COM LCD COM0~COM3 output

COM4/SEG�3~

COM7/SEG�0

COMn

LCDCTRL

—

COM LCD COM4~COM7 output fo� 1/8 duty

SEGn

LCDCTRL

—

SEG LCD SEG�3~SEG�0 output fo� 1/4 and 1/� duty

VDD

—

PWR

—

Powe� Supply

AVDD

—

PWR

—

ADC Powe� Supply

VSS

—

PWR

—

G�ound

AVSS

—

PWR

—

ADC G�ound

VSSCH

—

PWR

—

Cha�ge Pu�p negative powe� supply. AVSS and

VSSCH a�e �onded togethe�

VDDCH

—

PWR

—

Cha�ge Pu�p positive powe� supply. Conne�ted to VDD

in the appli�ation

CHPC1

—

Capa�ito� �onne�ted �etween CHPC1 and CHPC�

VOCHP

—

PWR Cha�ge Pu�p output

VOREG

—

PWR Regulato� output. AVDD and VOREG a�e �onded

togethe�

CCVREF

—

VREF output pin – �apa�ito� �onne�ted �etween this pin

and VSS

CCVIP

—

OPA non inve�ting input pin

CCVIN

—

OPA inve�ting input pin

SVIP

—

P�essu�e senso� positive input pin

SVIN

—

P�essu�e senso� negative input pin

SLPF

—

PGA� input pin

SCFR

—

PGA1 output pin.

SCFC

—

SCF input pin

Note:I/T:Inputtype

O/T:Outputtype

OPT:Optionalbyconfigurationoption(CO)orregisteroption

PWR:Power

CO:Configurationoption

ST:SchmittTriggerinput

CMOS:CMOSoutput

AN:Analoginputpin

VI:Voltageinput

HXT:Highfrequencycrystaloscillator

LXT:Lowfrequencycrystaloscillator

Absolute Maximum Ratings

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

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

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

OperatingTemperature..................................................................................................-10˚Cto50˚C

Note:Thesearestressratingsonly.Stressesexceedingtherangespecifiedunder"AbsoluteMaximum

Ratings"maycausesubstantialdamagetothesedevices.Functionaloperationofthesedevicesat

otherconditionsbeyondthoselistedinthespecificationisnotimpliedandprolongedexposureto

extremeconditionsmayaffectdevicesreliability.

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