Product Summary

The DS1337S+ 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 DS1337S+ is fully accessible through the serial interface while VCC is between 1.8V and 5.5V.

Parametrics

DS1337S+ absolute maximum ratings:(1)Voltage Range on Any Pin Relative to Ground:-0.3V to +6.0V; (2)Operating Temperature Range (Noncondensing):-40℃ to +8℃; (3)Storage Temperature Range:-55℃ to +125℃ ; (4)Soldering Temperature:See IPC/JEDEC J-STD-020 Specification.

Features

DS1337S+ features:(1)Real-Time Clock (RTC) Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap-Year Compensation Valid Up to 2100 ; (2)Available in a Surface-Mount Package with an Integrated Crystal (DS1337C) ; (3)I2C Serial Interface; (4)Two Time-of-Day Alarms ; (5)Oscillator Stop Flag ; (6)Programmable Square-Wave Output Defaults to 32kHz on Power-Up; (7)Available in 8-Pin DIP, SO, or μSOP; (8)-40℃ to +85℃ Operating.

Diagrams

DS1337S+ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS1337S+
DS1337S+
Maxim Integrated Products
Real Time Clock I2C Serial RTC
Data Sheet
0-1: $1.63
1-25: $1.09
25-50: $0.79
50-100: $0.78
DS1337S+C01
DS1337S+C01

IC RTC SERIAL 2WIRE LP 8-SOIC
Data Sheet
Negotiable 
DS1337S+T&R
DS1337S+T&R
Maxim Integrated Products
Real Time Clock I2C Serial RTC
Data Sheet
0-2420: $0.57
2420-2500: $0.57