DS1337
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DS1337

I²C Serial Real-Time Clock

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Industry's Smallest I²C RTC with Two Time-of-Day Alarms

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 7
1ku List Price Starting From $1.79
Features
  • Completely Manages All Timekeeping Functions
    • Real-Time Clock (RTC) Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap-Year Compensation Valid Up to 2100
    • Two Time-of-Day Alarms
    • Programmable Square-Wave Output Defaults to 32kHz on Power-Up
    • Oscillator Stop Flag
  • Interfaces with Most Microcontrollers
    • I2C Serial Interface
  • Surface-Mount Package with an Integrated Crystal (DC1337C) Saves Additional Space and Simplifies Design
  • -40°C to +85°C Industrial Temperature Range Supports Operation in a Wide Range of Applications
Additional Details
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The DS1337 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 through an I²C 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 1.3V.

Applications

  • Consumer Electronics (Set-Top Box, VCR/Digital Recording)
  • Handhelds (GPS, POS Terminal, MP3 Player)
  • Medical (Glucometer, Medicine Dispenser)
  • Office Equipment (Fax/Printer, Copier)
  • Other (Utility Meter, Vending Machine, Thermostat, Modem)
  • Telecommunications (Router, Switcher, Server)
Part Models 7
1ku List Price Starting From $1.79

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
DS1337+
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DS1337C#
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DS1337C#T&R
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DS1337S+
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DS1337S+T&R
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DS1337U+
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DS1337U+T&R
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Part Models

Product Lifecycle

PCN

Nov 9, 2018

- 1702C

ASSEMBLY

DS1337S+

PRODUCTION

DS1337S+T&R

PRODUCTION

May 1, 2020

- 1753R

ASSEMBLY

DS1337U+

PRODUCTION

DS1337U+T&R

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Nov 9, 2018

- 1702C

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ASSEMBLY

DS1337S+

PRODUCTION

DS1337S+T&R

PRODUCTION

May 1, 2020

- 1753R

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ASSEMBLY

DS1337U+

PRODUCTION

DS1337U+T&R

PRODUCTION

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