1338AC-31SRGI8

Description：IC RTC CLK/CALENDAR I2C 16SOIC
Series：-

SKU:e8b91f84257d Category: Real Time Clocks Brand: Renesas Electronics Corporation

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Product introduction

Product Detailed Parameters

Description：IC RTC CLK/CALENDAR I2C 16SOIC
Series：-
Package：Tape & Reel (TR)
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：16-SOIC (0.295", 7.50mm Width)
Supplier Device Package：16-SOIC

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1338AC-31SRGI8

Overview

The Renesas 1338AC-31SRGI8 is an active real-time clock (RTC) featuring battery-backed non-volatile RAM. It operates within the 1338B-31 series and utilizes a Serial I2C interface for data communication. The component is housed in an 8-pin SOIC package with a pitch of 1.27 mm. Designed for industrial applications, it supports low-power timekeeping and data retention via external battery backup, ensuring continuous operation during main power loss.

Feature Summary

Integrated Real-Time Clock with calendar functions
Battery-backed Non-Volatile RAM for data preservation
Serial I2C interface for microcontroller connectivity
8-pin SOIC surface-mount package

Applications

Industrial control systems requiring precise time stamping
Data logging equipment needing persistent memory storage
Embedded systems with intermittent power supply scenarios

Procurement Notes

Verify the specific suffix 'SRGI8' against official Renesas documentation to confirm temperature range and tape-and-reel packaging specifications. Ensure compatibility with existing I2C bus voltage levels and check for any lead-free or RoHS compliance markings on the datasheet before procurement.

Selection Notes

Select this component when a dedicated RTC with integrated non-volatile memory is required to reduce board space. Compare the 1338AC variant against the standard 1338B-31 for extended temperature performance if operating in harsh environments. Confirm that the I2C address matches the system design constraints.

Part Context

This part belongs to the Renesas 1338 family of real-time clocks, which are designed to provide accurate timekeeping and small-scale data storage. The 1338AC-31SRGI8 is an active version, meaning it requires a continuous power source or battery to maintain functionality. It serves as a standalone solution for time-sensitive applications without needing external oscillators.

Replacement Considerations

Consult the Renesas cross-reference guide for direct pin-compatible substitutes. Verify that alternative RTCs support the same I2C protocol and non-volatile RAM capacity. Ensure the replacement package matches the 8-pin SOIC footprint for mechanical compatibility.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.