DS1337C
I²C Serial Real-Time Clock
Industry's Smallest I²C RTC with Two Time-of-Day Alarms
- Part Models
- 7
- 1ku List Price
- Starting From $1.79
Overview
- 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
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)
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| DS1337+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| DS1337C# | 16-SOIC_W-300_MIL | ||
| DS1337C#T&R | 16-SOIC_W-300_MIL | ||
| DS1337S+ | Small-Outline IC, Narrow (0.15in) | ||
| DS1337S+T&R | Small-Outline IC, Narrow (0.15in) | ||
| DS1337U+ | Micro-MAX, Thin Shrink Small-Outline | ||
| DS1337U+T&R | Micro-MAX, Thin Shrink Small-Outline |
This is the most up-to-date revision of the Data Sheet.
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