1338-31DVGI

$2.61

Description：IC RTC CLK/CALENDAR I2C 8MSOP
Series：-

SKU:9022397add21 Category: Real Time Clocks Brand: Renesas Electronics Corporation

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Product introduction

Product Detailed Parameters

Description：IC RTC CLK/CALENDAR I2C 8MSOP
Series：-
Package：Tube
Mfr：Renesas Electronics Corporation
Type：Clock/Calendar
Features：Leap Year, NVSRAM, Square Wave Output
Memory Size：56B
Time Format：HH:MM:SS (12/24 hr)
Date Format：YY-MM-DD-dd
Interface：I2C, 2-Wire Serial
Voltage - Supply：3.3V ~ 5.5V
Voltage - Supply, Battery：1.3V ~ 3.7V
Current - Timekeeping (Max)：5µA @ 3.63V ~ 5.5V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package：8-MSOP

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1338-31DVGI

Overview

The Renesas 1338-31DVGI is a Real-Time Clock (RTC) IC featuring an I2C serial interface. It integrates a clock/calendar function with 56 bytes of battery-backed non-volatile static RAM (NVSRAM). The device supports time formats in HH:MM:SS (12/24 hour) and date formats in YY-MM-DD-dd, including leap year compensation. It operates on a main supply voltage of 3.3V to 5.5V and a backup battery voltage of 1.3V to 3.7V. Key features include a square wave output and low power consumption of 5µA at 3.63V–5.5V. The component is housed in an 8-TSSOP package.

Feature Summary

Integrated 56-byte battery-backed NVSRAM for data retention
I2C (2-wire serial) interface for communication
Automatic leap year compensation up to 2099
Square wave output capability

Applications

Data logging systems requiring timestamping
Industrial control equipment with calendar functions
Consumer electronics needing real-time tracking

Procurement Notes

Verify the specific suffix 'DVGI' against official Renesas documentation to confirm the TSSOP-8 package and lead-free status. Ensure compatibility with I2C bus voltage levels matching the 3.3V to 5.5V operating range. Confirm moisture sensitivity level (MSL) requirements for surface mount assembly processes.

Selection Notes

Select this component when a combined RTC and small memory buffer is required in a compact TSSOP package. Verify that the 56-byte NVSRAM capacity meets application storage needs. Ensure the system design accommodates the 1.3V to 3.7V backup battery input for continuous operation during main power loss.

Part Context

This part belongs to the Renesas 1338 series of real-time clocks. It is functionally similar to other variants in the series, such as the 1338-31DCGI8, which uses an SOIC-8 package. The DVGI suffix specifically denotes the thin-shrink small-outline package variant.