X1288V14-2.7A

Overview

The X1288V14-2.7A is a Real-Time Clock (RTC) integrated circuit 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 supports voltage supplies of 2.7V to 5.5V and battery voltages from 1.8V to 5.5V. Timekeeping current consumption ranges from 10µA to 20µA at 2.7V to 5V. It features alarm capabilities, leap year compensation, a supervisor function, and a watchdog timer. The component is housed in a 14-TSSOP package with a width of 4.40mm.

Feature Summary

• I2C 2-Wire Serial Interface for communication
• Clock/Calendar Type with HH:MM:SS:hh time format and YY-MM-DD-dd date format
• Integrated Alarm, Leap Year, Supervisor, and Watchdog Timer features
• 14-TSSOP Surface Mount Package

Applications

• Real-time data logging systems requiring precise timekeeping
• Battery-backed memory modules needing calendar functions
• Industrial control equipment with watchdog requirements

Procurement Notes

Verify component status as obsolete or end-of-life through official Renesas channels before procurement planning. Confirm RoHS compliance status, as variations exist within the X1288 series regarding environmental regulations. Ensure supply chain sources provide authentic documentation matching the specific suffix codes for voltage and packaging variants.

Selection Notes

Select this component when I2C connectivity is required for RTC functions in space-constrained designs utilizing 14-TSSOP footprints. Verify that the system's I2C bus speed is compatible with the device specifications. Consider the 1.8V minimum battery voltage support for low-power backup scenarios. Check if the specific operating temperature range meets the application environment requirements.

Part Context

This part belongs to the X1288 series of real-time clock ICs. Variants such as X1288V14I-2.7AT1 and X1288V14Z-2.7 share similar core functionalities but may differ in packaging (Tape & Reel vs. Tube), industrial temperature ratings, or RoHS compliance status. The 'V14' designation typically indicates the 14-pin TSSOP package configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Renesas technical support for direct replacements or pin-compatible alternatives within the same product family.