1339 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.
1339 Key Features
- Real-Time Clock (RTC) counts seconds, minutes, hours
- Packaged in 8-TSSOP, 8-SOIC, or 16-SOIC
- 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 temperature range (-40°C to +85°C)
- Underwriters Laboratory (UL) recognized