1339-31DVGI

Overview

The Renesas Electronics Corporation 1339-31DVGI is a Real-Time Clock (RTC) integrated circuit belonging to the 1339 series. It provides clock and calendar functions via a serial I2C interface. The device supports time formats of HH:MM:SS in both 12-hour and 24-hour modes, and date formats of YY-MM-DD-dd. It operates with a main supply voltage range of 2V to 5.5V and a battery backup voltage range of 1.3V to 3.7V. The component is housed in an 8-TSSOP package with dimensions of 3.0 x 3.0 x 0.97 mm and a pitch of 0.65 mm. It features a maximum current consumption of 200µA at 3.63V to 5.5V during timekeeping.

Feature Summary

• I2C Serial Interface: Utilizes a 2-wire serial interface for communication.
• Comprehensive Time/Date: Supports HH:MM:SS (12/24 hr) and YY-MM-DD-dd formats.
• Low Power Consumption: Maximum current draw of 200µA @ 3.63V ~ 5.5V.
• Dual Voltage Supply: Main supply 2V ~ 5.5V; Battery backup 1.3V ~ 3.7V.

Applications

• General-purpose real-time clocking in embedded systems.
• Data logging applications requiring accurate timestamping.
• Consumer electronics requiring calendar and timekeeping functions.

Procurement Notes

Verify the specific suffix 'DVGI' against the manufacturer's official datasheet to confirm package type and pinout compatibility. Check for Product Change Notifications (PCN) or End-of-Life (EOL) notices from Renesas, as this part number may have limited availability or be subject to discontinuation. Ensure moisture sensitivity level (MSL 3) handling requirements are met during assembly.

Selection Notes

Select the 1339-31DVGI when an I2C-compatible RTC with low power consumption is required for space-constrained designs using the 8-TSSOP package. Compare against the 1339-2DVGI if alternative packaging or feature sets are needed. Verify that the operating temperature range of -40°C to 85°C meets the environmental requirements of the target application.

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 differs in specific package configurations or manufacturing revisions. The 1339 series is designed for applications needing precise timekeeping with minimal external components.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consider checking Renesas for direct replacements or evaluating similar I2C RTCs from other manufacturers if this part is discontinued.