VT82885 データシートの表示（PDF） - Unspecified

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VT82885

Real Time Clock

Unspecified 

VIA Technologies, Inc.

VT82885

Real Time Clock

VOLTAGE ON ANY PIN RELATIVE TO GROUND -0.3V TO +7.0V

OPERATING TEMPERATURE

0°C TO 70°C

STORAGE TEMPERATURE

-40°C TO +70°C

SOLDERING TEMPERATURE

260°C FOR 10 SECONDS

*This is a stress rating only and functional operation of the device at these or any other conditions

above those indicated in the operation sections of this specification is not implied. Exposure to

absolute maximum rating conditions for extended periods of time may affect reliability.

RECOMMENDED DC OPERATING CONDITIONS (0°C TO 70°C)

PARAMETER

SYMBOL MIN

TYP

MAX

Power Supply Voltage

Input Logic 1

Input Logic 0

VCC

4.5

VIH

2.2

VIL

-0.3

5.0

5.5

VCC+0.3

+0.8

UNITS

V

V

V

NOTES

1

1

1

DC ELECTRICAL CHARACTERISTICS (0°C TO 70°C, VCC = 4.5 TO 5.5V)

PARAMETER

SYMBOL MIN

TYP

MAX UNITS

Power Supply Current

Input Leakage

ICC1

5

10

mA

IIL

-1.0

+1.0

µA

I/O Leakage

ILO

-1.0

+1.0

µA

Input Current

IMOT

-1.0

+500

µA

Output @ 2.4V

Output @ 0.4V

Write Protect Voltage

IOH

-1.0

mA

IOL

4.0

mA

VTP

4.0

4.25

4.5

V

NOTES

2

3

4

3

1,5

1

CAPACITANCE (tA = 25°C)

PARAMETER

SYMBOL MIN

Input Capacitance

Output Capacitance

CIN

COUT

TYP

MAX

5

7

UNITS

pF

pF

NOTES

AC ELECTRICAL CHARACTERISTICS (0°C TO 70°C, VCC = 4.5V TO 5.5V)

PARAMETER

SYMBOL MIN

TYP

MAX UNITS

Cycle Time

tCYC

385

Pulse Width, DS/E Low or PWEL

150

RD/WR# High

DC

ns

ns

NOTES

11

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