1338D-31DVGI8

$1.37

Description：1338D-31 REAL TIME CLOCK
Series：-

SKU:3aec30989741 Category: Real Time Clocks Brand: Renesas Electronics Corporation

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Product introduction

Product Detailed Parameters

Description：1338D-31 REAL TIME CLOCK
Series：-
Package：Tape & Reel (TR)
Mfr：Renesas Electronics Corporation
Type：Clock/Calendar
Features：Leap Year, RAM, Square Wave Output
Memory Size：56B
Time Format：HH:MM:SS (12/24 hr)
Date Format：YY-MM-DD-dd
Interface：I2C
Voltage - Supply：3.3V ~ 5.5V
Voltage - Supply, Battery：1.3V ~ 3.7V
Current - Timekeeping (Max)：2µA @ 3.63V
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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1338D-31DVGI8

Overview

The Renesas 1338D-31DVGI8 is a Real-Time Clock (RTC) IC featuring an I2C serial interface. It provides clock/calendar functionality with 56 bytes of NVSRAM storage. The device supports 3.3V to 5.5V VCC supply and 1.3V to 3.7V battery backup, consuming 5µA at 3.63V–5.5V. It operates within -40°C to +85°C and uses an 8-SOIC package.

Feature Summary

I2C Serial Interface
56B NVSRAM Storage
Leap-Year Compensation
Automatic Power-Fail Detect

Applications

Industrial Control Systems
Smart Meters
Wireless Communication Devices

Procurement Notes

Verify the specific suffix '8' indicates tape-and-reel packaging versus tube variants. Confirm RoHS compliance status for the exact revision. Check moisture sensitivity level handling requirements during assembly.

Selection Notes

Select this part for applications requiring integrated NVSRAM alongside timekeeping. Ensure I2C bus compatibility with the host controller. Verify voltage levels match the system's main and backup power rails.

Part Context

Part of the 1338 series RTC family. Shares core features with 1338-31DCGI8 but differs in packaging configuration. Related to 1338B-18DVGI8 which offers different memory or feature sets.