DS12B887 데이터 시트보기 (PDF) - Dallas Semiconductor -> Maxim Integrated

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DS12B887

Real Time Clock

Dallas Semiconductor -> Maxim Integrated 

DS12B887

ABSOLUTE MAXIMUM RATINGS*

Voltage on Any Pin Relative to Ground

Operating Temperature

Storage Temperature

Soldering Temperature

–0.3V to +7.0V

0°C to 70°C

–40°C to +70°C

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.

The Dallas Semiconductor DS12B887 built to the highest quality standards and manufactured for long term reliability.

All Dallas Semiconductor devices are made using the same quality materials and manufacturing methods. However,

standard versions of the DS12B887 are not exposed to environmental stresses, such as burn–in, that some industrial

applications require. For specific reliability information on this product, please contact the factory in Dallas at (214)

450–0448.

RECOMMENDED DC OPERATING CONDITIONS

PARAMETER

SYMBOL MIN

Power Supply Voltage

Input Logic 1

Input Logic 0

VCC

4.5

VIH

2.2

VIL

-0.3

DC ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL MIN

Power Supply Current

Input Leakage

I/O Leakage

Output @ 2.4V

Output @ 0.4V

Write Protect Voltage

ICC1

IIL

-1.0

ILO

-1.0

IOH

-1.0

IOL

VTP

4.0

CAPACITANCE

PARAMETER

Input Capacitance

Output Capacitance

SYMBOL MIN

CIN

COUT

(0°C to 70°C)

TYP

MAX

UNITS NOTES

5.0

5.5

V

1

VCC+0.3

V

1

+0.8

V

1

(0°C to 70°C; VCC = 4.5 to 5.5V)

TYP

MAX

UNITS NOTES

7

15

mA

2

+1.0

mA

+1.0

mA

3

mA

1,4

4.0

mA

1

4.25

4.5

V

(tA = 25°C)

TYP

MAX

UNITS NOTES

5

pF

7

pF

080895 11/16

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