HT6750A datasheet(4/8 Pages) HOLTEK

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Electrical Characteristics

Ta=25

±3°C, RH£65%, VSS=0V

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

VDD

Operating Voltage

2.4

5.5

Vstr

Oscillation Start Voltage

Within 2 sec after power on

(Speed up oscillator when at

power on reset)

2.4

¾¾

Vstop

Oscillation Stop Voltage

¾¾

1.8

Iopr1

Power Consumption (1)

No load,

Non-printing Ta

£+20°C

Lamp Drop Voltage

(Reference VDD)

Constant voltage reference

VDD,atVDD=2.4V~5.5V

(Load is lamp 1.8V/40mA)

1.71

1.8

1.89

Iopr2

Power Consumption (2)

No load, Non-printing

£+50°C, RH=80%

¾¾

DT0/T

Time Accuracy

Ta=+20

°C

-90

090

sec/

Month

DT1/T

Time Accuracy Deviation (1)

Ta=

-10°C, Deviation against

Ta=+20

°C

-170

-112

-70

sec/

Month

DT2/T

Time Accuracy Deviation (2)

Ta=+35

°C, Deviation against

Ta=+20

°C

-25

-8

sec/

Month

DT3/T

Time Accuracy Deviation (3)

Ta=+50

°C, Deviation against

Ta=+20

°C

-95

-55

-10

sec/

Month

Thold

Data Hold Time

At power interrupt

(0.1

mFat3V)

¾¾

I key-on

ON Recognition Current

When VSS=0V,

X pin (VSS+0.5V), Other pins

R key-off

OFF Recognition Resistance

X pin, Other pins

VIL

Threshold Voltage

X Pin ON function With

MODE, SEL, SET ON

VSS

+0.5V

VIH

Threshold Voltage

With X pin OFF MODE, SEL,

SET OFF function

VDD

-0.5V

VDD

HT6750A

Rev. 1.00

January 17, 2003

HT6750A Datasheet(PDF) 4 Page - Holtek Semiconductor Inc

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