X1228S14IZ-2.7A

Description：IC RTC CLK/CALENDAR I2C 14SOIC
Series：-

SKU:5a41b28c1af7 Category: Real Time Clocks Brand: Renesas Electronics Corporation

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Product introduction

Product Detailed Parameters

Description：IC RTC CLK/CALENDAR I2C 14SOIC
Series：-
Package：Tube
Mfr：Renesas Electronics Corporation
Type：Clock/Calendar
Features：Alarm, Leap Year, Supervisor, Watchdog Timer
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：14-SOIC (0.154", 3.90mm Width)
Supplier Device Package：14-SOIC

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X1228S14IZ-2.7A

Overview

The X1228S14IZ-2.7A is a Real-Time Clock (RTC) IC manufactured by Renesas Electronics Corporation, housed in a 14-SOIC package with a width of 0.154 inches (3.90mm). It operates on a supply voltage range of 2.7V to 5.5V and supports battery backup from 1.8V to 5.5V. The device features an I2C 2-wire serial interface for communication. Timekeeping current consumption ranges from 10µA to 20µA at the specified voltage levels. It supports date formats of YY-MM-DD-dd and time formats of HH:MM:SS in both 12-hour and 24-hour modes. The component is rated for operation between -40°C and 85°C.

Feature Summary

Integrated real-time clock and calendar functionality with alarm capabilities
Supports leap year compensation and watchdog timer supervision
Includes non-volatile memory for data retention during power loss

Applications

Data logging systems requiring precise timestamping
Industrial control equipment needing reliable timekeeping
Consumer electronics with calendar display functions

Procurement Notes

Verify the exact suffix configuration against official Renesas documentation, as variations may exist. Confirm RoHS compliance status for specific manufacturing lots. Check for end-of-life notices or obsolescence warnings prior to procurement. Ensure compatibility with existing I2C bus protocols and voltage levels in the target design.

Selection Notes

Select this component when a surface-mount RTC with integrated supervisor features is required. Consider the 14-SOIC footprint constraints and I2C interface requirements. Evaluate the need for watchdog timer and alarm functions inherent to this model. Verify that the operating temperature range meets the environmental conditions of the application.

Part Context

This part belongs to the X1228 series of real-time clocks from Renesas. It combines timekeeping with EEPROM-like storage and system management features. The device is designed for applications requiring accurate time tracking without external oscillators. It integrates standard RTC functions with additional supervisory controls for enhanced system reliability.