1339 Datasheet (Renesas) - Real-Time Clock

1339, Real-Time Clock

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

1339 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-