1337GNLGI8

1337GNLGI8 Datasheet

IDT1337G

Part	Datasheet
1337GNLGI8	1337GNLGI8 (pdf)

Related Parts	Information
1337GCSRI8	1337GCSRI8
1337GNLGI	1337GNLGI
1337GCSRI	1337GCSRI

PDF Datasheet Preview
REAL-TIME CLOCK WITH I2C SERIAL INTERFACE DATASHEET IDT1337G The IDT1337G device is a low power serial real-time clock RTC device with two programmable time-of-day alarms and a programmable square-wave output. Address and data are transferred serially through an I2C bus. The device provides seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. • Telecommunication Routers, Switches, Servers • Handhelds GPS, POS terminals, MP3 players • Set-Top Box, Digital Recording, • Office Fax/Printers, Copiers • Medical Glucometer, Medicine Dispensers • Other Thermostats, Vending Machines, Modems, Utility Meters, Digital Photo Frame devices • Real-Time Clock RTC counts seconds, minutes, hours, day, date, month, and year with leap-year compensation valid up to 2100 • Packaged in 8-pin MSOP, 8-pin SOIC, 16-pin QFN without integrated crystal , or 16-pin SOIC surface-mount package with an integrated crystal • I2C Serial interface Normal and Fast modes • Two time-of-day alarms • Oscillator Stop Flag • Programmable square-wave output defaults to 32 kHz on power-up • Operating voltage of to V • Industrial temperature range -40 to +85°C • Extended temperature range -40 to +105°C for 8-pin SOIC package Block Diagram Crystal inside package for 16-pin SOIC ONLY kHz Oscillator and Divider 1 Hz/4.096 kHz/ kHz/32.768 kHz MUX/ Buffer Control Logic Clock, Calendar Counter SCL SDA I2C Interface 1 Byte 7 Bytes Alarm Control Buffer Registers SQW/INTB INTA REAL-TIME CLOCK WITH I2C SERIAL INTERFACE IDT1337G REA LTIME CLOCK WITH SERIAL INTERFACE Pin Assignment 8-pin MSOP/SOIC X1 X2 INTA GND 2 IDT1337G 7 VCC SQW/INTB SCL SDA Pin Assignment 16-pin SOIC SCL SQW/INTB VCC NC IDT1337G SDA GND INTA NC Pin Assignment 16-pin QFN INTA SQW/INTB REAL-TIME CLOCK WITH I2C SERIAL INTERFACE Ordering Information Part / Order Number 1337GDVGI 1337GDVGI8 1337GCSRI 1337GCSRI8 1337GDCGI 1337GDCGI8 1337GDCGK 1337GDCGK8 1337GNLGI 1337GNLGI8 Markings see page 20 Shipping Packaging Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Package 8-pin MSOP 8-pin MSOP 16-pin SOIC 16-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 16-pin QFN 16-pin QFN Temperature -40 to +85° C -40 to +85° C -40 to +85° C -40 to +85° C -40 to +85° C -40 to +85° C -40 to +105° C -40 to +105° C -40 to +85° C -40 to +85° C The 1337GC packages are RoHS compliant. Packages without the integrated crystal are Pb-free packages that include the integrated crystal as designated with a “C” before the two-letter package code may include lead that is exempt under RoHS requirements. The lead finish is JESD91 category e3. While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology IDT assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments. REAL-TIME CLOCK WITH I2C SERIAL INTERFACE IDT1337G REA LTIME CLOCK WITH SERIAL INTERFACE J.Sarma 12/12/08 New device. Preliminary release. A. Tsui 01/28/09 Added 16-pin QFN package and ordering info. A. Tsui 02/04/09 Updated 16-pin QFN pinout. A. Tsui 04/03/09 Added 5µA Typ. to Active Supply Current spec. A. Tsui 05/26/09 Added top-side markings. 11/10/09 Added “Handling, PCB Layout, and Assembly” section. A. Tsui 11/16/09 Changed series resistance parameter from 50 to 80 kOhm. A. Tsui 08/02/10 Added extended temperature range for 8-pin SOIC. A. Tsui 03/01/11 Updated Standard Mode specs for “Rise/Fall Time of Both SDA and SCL Signals”. REAL-TIME CLOCK WITH I2C SERIAL INTERFACE IDT1337G REAL-TIME CLOCK WITH I2C SERIAL INTERFACE Innovate with IDT and accelerate your future networks. Contact: For Sales 800-345-7015 408-284-8200 Fax 408-284-2775 For Tech Support Corporate Headquarters Integrated Device Technology, Inc. 2011 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA

PDF Datasheet Preview

REAL-TIME CLOCK WITH I2C SERIAL INTERFACE

DATASHEET

IDT1337G

The IDT1337G device is a low power serial real-time clock RTC device with two programmable time-of-day alarms and a programmable square-wave output. Address and data are transferred serially through an I2C bus. The device provides seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator.
• Telecommunication Routers, Switches, Servers
• Handhelds GPS, POS terminals, MP3 players
• Set-Top Box, Digital Recording,
• Office Fax/Printers, Copiers
• Medical Glucometer, Medicine Dispensers
• Other Thermostats, Vending Machines, Modems, Utility

Meters, Digital Photo Frame devices
• Real-Time Clock RTC counts seconds, minutes, hours,
day, date, month, and year with leap-year compensation valid up to 2100
• Packaged in 8-pin MSOP, 8-pin SOIC, 16-pin QFN
without integrated crystal , or 16-pin SOIC surface-mount package with an integrated crystal
• I2C Serial interface Normal and Fast modes
• Two time-of-day alarms
• Oscillator Stop Flag
• Programmable square-wave output defaults to 32 kHz on
power-up
• Operating voltage of to V
• Industrial temperature range -40 to +85°C
• Extended temperature range -40 to +105°C for 8-pin

SOIC package

Block Diagram

Crystal inside package for 16-pin SOIC ONLY
kHz Oscillator and

Divider
1 Hz/4.096 kHz/ kHz/32.768 kHz

MUX/ Buffer

Control Logic

Clock, Calendar Counter

SCL SDA

I2C Interface
1 Byte 7 Bytes Alarm Control Buffer Registers

SQW/INTB INTA

REAL-TIME CLOCK WITH I2C SERIAL INTERFACE

IDT1337G REA LTIME CLOCK WITH SERIAL INTERFACE

Pin Assignment 8-pin MSOP/SOIC

X1 X2 INTA GND
2 IDT1337G 7

VCC SQW/INTB SCL SDA

Pin Assignment 16-pin SOIC

SCL SQW/INTB

VCC NC

IDT1337G

SDA GND INTA NC

Pin Assignment 16-pin QFN

INTA

SQW/INTB

REAL-TIME CLOCK WITH I2C SERIAL INTERFACE
Ordering Information

Part / Order Number
1337GDVGI 1337GDVGI8 1337GCSRI 1337GCSRI8 1337GDCGI 1337GDCGI8 1337GDCGK 1337GDCGK8 1337GNLGI 1337GNLGI8

Markings
see page 20

Shipping Packaging

Tubes Tape and Reel

Tubes Tape and Reel

Tubes Tape and Reel

Tubes Tape and Reel

Tubes Tape and Reel

Package
8-pin MSOP 8-pin MSOP 16-pin SOIC 16-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 16-pin QFN 16-pin QFN

Temperature
-40 to +85° C -40 to +85° C -40 to +85° C -40 to +85° C -40 to +85° C -40 to +85° C -40 to +105° C -40 to +105° C -40 to +85° C -40 to +85° C

The 1337GC packages are RoHS compliant. Packages without the integrated crystal are Pb-free packages that include the integrated crystal as designated with a “C” before the two-letter package code may include lead that is exempt under RoHS requirements. The lead finish is JESD91 category e3.

While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology IDT assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments.

REAL-TIME CLOCK WITH I2C SERIAL INTERFACE

IDT1337G REA LTIME CLOCK WITH SERIAL INTERFACE

J.Sarma 12/12/08 New device. Preliminary release.
A. Tsui 01/28/09 Added 16-pin QFN package and ordering info.

A. Tsui 02/04/09 Updated 16-pin QFN pinout.

A. Tsui 04/03/09 Added 5µA Typ. to Active Supply Current spec.

A. Tsui 05/26/09 Added top-side markings.
11/10/09 Added “Handling, PCB Layout, and Assembly” section.

A. Tsui 11/16/09 Changed series resistance parameter from 50 to 80 kOhm.

A. Tsui 08/02/10 Added extended temperature range for 8-pin SOIC.

A. Tsui 03/01/11 Updated Standard Mode specs for “Rise/Fall Time of Both SDA and SCL Signals”.

REAL-TIME CLOCK WITH I2C SERIAL INTERFACE

IDT1337G REAL-TIME CLOCK WITH I2C SERIAL INTERFACE

Innovate with IDT and accelerate your future networks. Contact:

For Sales
800-345-7015 408-284-8200 Fax 408-284-2775

For Tech Support

Corporate Headquarters

Integrated Device Technology, Inc.
2011 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived 1337GNLGI8 Datasheet file may be downloaded here without warranties.

Datasheet ID: 1337GNLGI8 637241