Datasheet4U Logo Datasheet4U.com

DS1308 - Low-Current I2C RTC

General Description

The DS1308 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV RAM.

Address and data are transferred serially through an I2C interface.

The clock/calendar provides seconds, minutes, hours, day, date, month, and year information.

Key Features

  • Compatible with Crystal ESR Up to 100kΩ Allows a Crystal to be Optimized for Cost and Space.
  • Low-Power Operation Extends Battery Backup Run Time.
  • Low Timekeeping Current of 250nA (typ).
  • Automatic Power-Fail Detect and Switch Circuitry.
  • Completely Manages All Timekeeping Functions.
  • Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2400.
  • E.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
DS1300-3 AC-DC / Distributed Power Front-End 2U Emerson
DS1302 Trickle Charge Timekeeping Chip TGS
DS1307 64 X 8 Serial Real Time Clock TGS
DS1307 Real-Time Clock Maxim
DS1314 3V Nonvolatile Controller ART CHIP

Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
DS1302 Trickle-Charge Timekeeping Chip
DS1305 Serial Alarm Real-Time Clock
DS1306 Serial Alarm Real-Time Clock
DS1312 Nonvolatile Controller
DS1314 3V Nonvolatile Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
DS1308 Low-Current I2C RTC with 56-Byte NV RAM General Description The DS1308 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV RAM. 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 an AM/PM indicator. The DS1308 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply, maintaining time and date operation.