Product Summary

The DS1338 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I2C interface. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date 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 DS1338 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply, maintaining time and date operation

Features

? RTC Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100
? Available in a Surface-Mount Package with an Integrated Crystal (DS1338C)
? 56-Byte Battery-Backed General-Purpose RAM with Unlimited Writes
? I2C Serial Interface
? Programmable Square-Wave Output Signal
? Automatic Power-Fail Detect and Switch Circuitry
? -40°C to +85°C Operating Temperature Range
? Underwriters Laboratories (UL) Recognized

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS1338Z-33+
DS1338Z-33+
Maxim Integrated Products
Real Time Clock I2C Serial RTC w/56 Byte NV RAM
Data Sheet
0-1: $2.07
1-25: $1.39
25-50: $1.01
50-100: $1.00
DS1338Z-33+T&R
DS1338Z-33+T&R
Maxim Integrated Products
Real Time Clock I2C Serial RTC w/56 Byte NV RAM
Data Sheet
0-2420: $0.74
2420-2500: $0.74