Diodes Menu Close
Back to Real Time Clock (RTC)

PT7C4337AC

I2C Interface RTC module with internal Crystal

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Description

The PT7C4337A/4337AC serial real-time clock is a low-power clock/calendar with two programmable time-of-day alarms and a programmable square-wave output.
Address and data are transferred serially via a 2-wire, bidirectional bus. The clock/calendar 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.
The device is fully accessible through the serial interface while VCC is between 1.8V and 5.5V. I2C operation is not guaranteed below 1.8V. Timekeeping operation is maintained with VCC as low as 1.2V.
Table 1 shows the basic functions of PT7C4337A/ 4337AC. More details are shown in section: overview of functions.

Features

  • Using external 32.768kHz quartz crystal for PT7C4337A
  • Using internal 32.768kHz quartz crystal for PT7C4337AC
  • Supports I2C-Bus's high speed mode (400 kHz)
  • Includes time (Hour/Minute/Second) and calendar (Year/Month/Date/Day) counter functions (BCD code)
  • Programmable square wave output signal
  • Two Time-of-Day Alarms
  • Oscillator Stop Flag
  • Operating range: 1.8V to 5.5V
  • Timekeeping range: 1.2V to 1.8V

 

 

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
Time Display 12, 24
Interface I2C
Alarm Interrupt 1
Battery Backup 0
Clock Calibration 0

Related Content

Packages

Applications

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents

Request Documents
Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
Contact Sales
Request Samples
Qty. Carrier
PT7C4337ACSE Active SO-16 GREEN 48 TUBE

PT7C4337ACSE

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 9 11/26/2022 South America, North America, Asia, Europe, Middle East Buy Now
Digi-Key Electronics 120 11/25/2022 Europe, Asia, North America Buy Now
Request Sample
PT7C4337ACSEX Active SO-16 TPGP 1000 T&R Contact Sales Request Sample

Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free

FAQs

Related Application FAQs