X1226S8I

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

SKU:591b0470b71b Category: Real Time Clocks Brand: Renesas Electronics Corporation

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Product introduction

Product Detailed Parameters

Description：IC RTC CLK/CALENDAR I2C 8SOIC
Series：-
Package：Tube
Mfr：Renesas Electronics Corporation
Type：Clock/Calendar
Features：Alarm, Leap Year
Memory Size：-
Time Format：HH:MM:SS (12/24 hr)
Date Format：YY-MM-DD-dd
Interface：I2C, 2-Wire Serial
Voltage - Supply：2.7V ~ 5.5V
Voltage - Supply, Battery：1.8V ~ 5.5V
Current - Timekeeping (Max)：10µA ~ 20µA @ 2.7V ~ 5V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC

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X1226S8I

Overview

The X1226S8I is a Real-Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation, designed for precise timekeeping and calendar functions. It features an I²C, 2-wire serial interface for communication with host processors. The device supports HH:MM:SS time formats in both 12-hour and 24-hour modes, alongside a YY-MM-DD-dd date format. Key functional features include programmable alarms and leap year compensation. The component operates within a supply voltage range of 2.7V to 5.5V, with a battery backup range of 1.8V to 5.5V. Timekeeping current consumption ranges from 10µA to 20µA at 2.7V to 5V. It is housed in an 8-SOIC package with a width of 3.90mm.

Feature Summary

Integrated clock/calendar with HH:MM:SS and YY-MM-DD-dd formatting
I²C, 2-wire serial interface for system connectivity
Programmable alarm functionality and automatic leap year compensation
Low power consumption: 10µA ~ 20µA during timekeeping

Applications

Systems requiring accurate real-time tracking via I²C bus
Battery-backed timekeeping applications utilizing low standby current
Devices requiring periodic interrupt generation through programmable alarms

Part Context

The X1226S8I belongs to the X1226 base product family of RTC ICs. It utilizes an 8-SOIC surface-mount package. The specific suffix 'I' denotes an industrial temperature rating of -40°C to 85°C. This part is classified as obsolete and is no longer in active manufacturing production.

Replacement Considerations

Publicly confirmed substitute part numbers include ISL12026IBZ-T from Renesas Electronics Corporation and PCA8565TS/1,118 from NXP USA Inc. Both are listed as similar replacements for this obsolete component.

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.