X1288V14ZT1

Overview

The X1288V14ZT1 is a Real-Time Clock (RTC) and calendar integrated circuit manufactured by Renesas Electronics Corporation. It operates on a single 5V supply with a voltage range of 4.5V to 5.5V. The device features an I²C serial interface for communication and supports date formats including YY-MM-DD-dd and time formats in both 12-hour and 24-hour modes. Key functional blocks include an alarm capability, leap year compensation, a supervisor function, and a watchdog timer. The component is housed in a 14-TSSOP surface-mount package with a width of 4.40mm.

Feature Summary

• Integrated RTC and calendar with I²C interface
• Hardware support for alarms, leap years, supervisor, and watchdog timer
• Low power consumption: 10µA to 20µA current during timekeeping at 2.7V–5V

Applications

• Industrial equipment requiring precise timekeeping and system supervision
• Consumer electronics needing calendar functions and alarm triggers
• Embedded systems utilizing I²C communication protocols

Part Context

The X1288V14ZT1 belongs to the X1288 family of real-time clock devices. This series provides nonvolatile timekeeping capabilities combined with system management features such as watchdog timers and supervisors, designed for applications where maintaining accurate time and monitoring system health are critical requirements.

Replacement Considerations

The base model X1288 is listed as obsolete. Verify compatibility with alternative RTC ICs from Renesas or other manufacturers that offer I²C interfaces, similar pinouts, and comparable power consumption profiles for direct replacement in existing designs.