X1288V14-2.7AT1

Overview

The X1288V14I-2.7AT1 is a Real Time Clock (RTC) IC manufactured by Renesas Electronics Corporation, belonging to the X1288 base product family. It provides clock/calendar functionality via an I2C, 2-Wire Serial interface. The device operates with a supply voltage of 2.7V to 5.5V and supports battery backup from 1.8V to 5.5V. Key electrical characteristics include a maximum timekeeping current of 10µA to 20µA at 2.7V to 5V. It is housed in a 14-TSSOP package (0.173", 4.40mm Width) and is rated for an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrated Alarm, Leap Year correction, Supervisor, and Watchdog Timer features
• Supports HH:MM:SS:hh (12/24 hr) time format and YY-MM-DD-dd date format
• Surface Mount mounting type in a 14-TSSOP package

Applications

• Clock/Calendar systems requiring I2C connectivity
• Industrial equipment needing real-time tracking with watchdog capabilities
• Consumer electronics utilizing low-power RTC functions

Procurement Notes

Verify component status as Obsolete. Confirm RoHS compliance status, noting potential non-compliance variants. Check Moisture Sensitivity Level (MSL 1). Ensure ordering suffix matches required packaging and temperature grade specifications from official datasheets.

Selection Notes

Select based on supply voltage requirements (2.7V–5.5V) and battery backup needs (1.8V–5.5V). Consider the -40°C to 85°C industrial temperature range. Verify interface compatibility with I2C controllers. Note that this specific part number may be obsolete; check for available alternatives within the X1288 family.

Part Context

This component is part of the X1288 series of Real Time Clock ICs. It shares the base X1288 architecture but differs in packaging, temperature rating, and compliance status compared to other suffixes like Z or V. It is distinct from digital potentiometer models such as the X9429 or X9118.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source data. Consult Renesas documentation for cross-reference information regarding obsolete components.