X1288V14I

Overview

The X1288V14I is a Real-Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation. It provides clock/calendar functionality via an I2C, 2-Wire Serial interface. The device operates within a supply voltage range of 2.7V to 5.5V and supports battery voltages from 1.8V to 5.5V. Timekeeping current consumption is specified at 10µA to 20µA @ 2.7V ~ 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 and is rated for an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrated Real-Time Clock (RTC) with Clock/Calendar functionality
• I2C, 2-Wire Serial communication interface
• Supports Alarm, Leap Year, Supervisor, and Watchdog Timer features
• Operating temperature range: -40°C to 85°C

Applications

• Industrial control systems requiring precise timekeeping
• Consumer electronics with calendar and alarm functions
• Automotive infotainment or monitoring modules

Procurement Notes

Verify the specific suffix 'I' against the official datasheet to confirm the industrial temperature grade (-40°C to 85°C). Confirm package details match the 14-TSSOP specification. Check current availability status as this part number may be obsolete or subject to last-time buy notices depending on the manufacturer's lifecycle updates.

Selection Notes

Select this component when an I2C-connected RTC with low power consumption (10µA–20µA) is required. Ensure the system voltage aligns with the 2.7V–5.5V supply range. Verify that the 14-TSSOP package fits the PCB layout constraints. Consider the built-in watchdog and supervisor features if system reliability is critical.

Part Context

This part belongs to the X1288 family of real-time clock ICs. The base product number is X1288. Variations in the suffix typically denote temperature ranges, packaging types, or voltage specifications. The 'I' suffix generally indicates the industrial temperature grade.

Replacement Considerations

Check for direct pin-to-pin replacements from Renesas or other manufacturers offering compatible I2C RTCs with similar voltage and package requirements. Verify feature parity regarding alarm and watchdog functions before substitution.