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2014-10-0002

PT0480-2

11/03/14

3

PT7C4337A/4337AC

Real-time Clock Module (I

Maximum Ratings

Storage Temperature ............................................................ -65℃ to +150℃

Ambient Temperature with Power Applied ........................... -40℃ to +85℃

DC Input (All Other Inputs except Vcc & GND)

DC Output Voltage (SDA, /INTA, /INTB pins)........................................-0.3V to +6.5V

DC Output Current (FOUT) ............................................... -0.3V to (Vcc +0.3V)

Power Dissipation .............................................320mW(depend on package)

Operating Mode

The amount of current consumed by the PT7C4337A is determined, in part, by the I

Operating Mode

Power

I

1.8V ≤ V

I

1.8V ≤ V

I

1.2V ≤ V

I

1.2V ≤ V

Recommended Operating Conditions

Part No.

Sym.

Description

Min

Type

Max

Unit

PT7C4337A

PT7C4337AC

1.8

3.3

5.5

V

1.2

-

1.8

Oscillator start up voltage

1.2

-

5.5

Input high level

SCL, SDA

-

INTA, SQW/INTB

-

-

5.5

Input low level

-0.3

-

Operating temperature

-40

-

85

ºC

DC Electrical Characteristics

Sym.

Item

Pin

Condition

Min

Typ

Max

Unit

Supply voltage

Full operation

1.8

-

5.5

V

Timekeeping (Note 5)

1.2

-

1.8

Oscillator voltage

1.2

-

5.5

V

Low-level input voltage

SCL

-0.3

-

V

High-level input voltage

SCL

-

Low-level input voltage

X1

-

0.53

-

V

High-level input voltage

X1

-

0.53

-

Low-level output current

SDA, /INTA, /INTB

3

-

-

mA

Input leakage current

SCL

-1

-

1

A

Output current when OFF

SDA, /INTA, /INTB

-1

-

1

A

Note:

Stresses

greater

than

those

listed

under

MAXIMUM RATINGS may cause permanent

damage to the device. This is a stress rating

only and functional operation of the device at

these or any other conditions above those

indicated in the operational sections of this

specification is not implied. Exposure to

absolute

maximum

rating

conditions

for

extended periods may affect reliability.