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1339 Datasheet Real-Time Clock

Manufacturer: Renesas

General Description

The 1339 serial real-time clock (RTC) is a low-power clock/date device 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/date provides seconds, minutes, hours, day, date, month, and year information.

Overview

Real-Time Clock with Serial I2C Interface DATASHEET 1339.

Key Features

  • Real-Time Clock (RTC) counts seconds, minutes, hours, day, date, month, and year with leap-year compensation valid up to 2100.
  • Packaged in 8-TSSOP, 8-SOIC, or 16-SOIC (surface-mount package with an integrated crystal).
  • Fast mode I2C Serial interface.
  • Two time-of-day alarms.
  • Programmable square-wave output.
  • Oscillator stop flag.
  • Automatic power-fail detect and switch circuitry.
  • Trickle-charge capability.
  • Industrial.