IDT1337G

REAL-TIME CLOCK WITH I2C SERIAL INTERFACE

RTC

IDT® REAL-TIME CLOCK WITH I2C SERIAL INTERFACE

13

IDT1337G

REV M 073013

Handling, PCB Layout, and Assembly

The IDT1337G package contains a quartz tuning-fork crystal. Pick-and-place equipment may be used, but precautions

should be taken to ensure that excessive shocks are avioded. Ultrasonic cleaning equipment should be avioded to prevent

damage to the crystal.

Avoid running signal traces under the package, unless a ground plane is placed between the package and the signal line.

All NC (no connect) pins must be connected to ground.

Moisture-sensitive packages are shipped from the factory dry-packed. Handling instructions listed on the package label must

be followed to prevent damage during reflow. Refer to the IPC/JEDEC J-STD-020 standard for moisture-sensitive device

(MSD) classifications.

Absolute Maximum Ratings

Stresses above the ratings listed below can cause permanent damage to the IDT1337G. These ratings, which are standard

values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these or any other

conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute

maximum rating conditions for extended periods can affect product reliability. Electrical parameters are guaranteed only

over the recommended operating temperature range.

Recommended DC Operating Conditions

Item

Rating

Voltage Range (on any pin relative to ground)

-0.3 V to +6.0 V

Storage Temperature

-55 to +125

C

Soldering Temperature

260

C

Ambient Operating Temperature (industrial)

-40 to +85°C

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

VCC Supply Voltage

VCC

Full operation

1.8

3.3

5.5

V

VCCT

Timekeeping

1.3

1.8

V

Ambient Operating Temperature (industrial)

TA

-40

+85

C

Logic 1

VIH

SCL, SDA

0.8VCC

VCC + 0.3

V

INTA, SQW/INTB

5.5

Logic 0

VIL

-0.3

+0.3VCC

V