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Product Detailed Parameters
- Description：1339D-31 REAL TIME CLOCK
- Series：-
- Package：Tube
- Mfr：Renesas Electronics Corporation
- Type：Clock/Calendar
- Features：Alarm, Leap Year, Square Wave Output, Trickle-Charger
- Memory Size：-
- Time Format：HH:MM:SS (12/24 hr)
- Date Format：YY-MM-DD-dd
- Interface：I2C, Serial
- Voltage - Supply：3.3V ~ 5.5V
- Voltage - Supply, Battery：1.3V ~ 3.7V
- Current - Timekeeping (Max)：200µA @ 3.63V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-TSSOP
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Overview
The Renesas Electronics 1339D-31DVGI is a Real-Time Clock (RTC) integrated circuit belonging to the 1339 series. It functions as a clock/calendar device with an I2C serial interface, housed in an 8-TSSOP package. The component supports time formats of HH:MM:SS in both 12-hour and 24-hour modes, alongside date formatting of YY-MM-DD-dd. Key features include alarm capabilities, leap year compensation, square wave output, and a trickle charger. It operates within a supply voltage range of 2V to 5.5V and maintains timekeeping with a battery input between 1.3V and 3.7V.
Feature Summary
- I2C Serial Interface for communication
- Integrated Alarm and Leap Year Compensation
- Square Wave Output capability
- Trickle Charger function
Applications
- General purpose clock/calendar systems
- Data logging equipment requiring time stamps
- Embedded systems needing real-time tracking
Procurement Notes
Verify availability status through official Renesas channels or authorized distributors, as stock levels fluctuate. Confirm the specific suffix 'DVGI' corresponds to the required tape-and-reel packaging configuration. Ensure compliance with RoHS directives and check Moisture Sensitivity Level (MSL) requirements for surface-mount assembly processes before procurement.
Selection Notes
Select this part when an I2C-compatible RTC with low power consumption and basic calendar functions is required. Compare against the 1339-2DVGI for similar feature sets but verify package and pinout compatibility. Consider the operating temperature range of -40°C to 85°C for industrial applications. Validate that the 8-TSSOP footprint fits the target PCB design constraints.
Part Context
This component is part of the Renesas 1339 series of real-time clocks. It shares functional similarities with other variants like the 1339-2DVGI but may differ in packaging or specific electrical characteristics. The 1339 series is designed for cost-effective timekeeping solutions in consumer and industrial electronics.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Renesas cross-reference tools for parametrically similar components if direct replacement is needed.
