X1288S16T1

Overview

The X1288S16T1 is a Real-Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation. It provides clock and calendar functions via an I2C, 2-Wire Serial interface. The device operates within a supply voltage range of 2.7V to 5.5V and supports battery backup from 1.8V to 5.5V. It features a maximum current consumption of 10µA to 20µA at 2.7V to 5V. The component is designed for surface mount installation in an 8-SOIC package with a width of 3.90mm. It supports time formats including HH:MM:SS in both 12-hour and 24-hour modes, and date formats in YY-MM-DD-dd structure.

Feature Summary

• Provides accurate clock and calendar tracking capabilities through a standard two-wire serial interface.
• Supports dual power supply options for main operation and battery backup to maintain timekeeping during power loss.
• Includes programmable alarm functionality and leap year compensation for precise long-term time management.

Applications

• Clock/calendar systems requiring low-power timekeeping
• Data logging devices needing timestamp accuracy
• Industrial equipment with real-time scheduling requirements

Procurement Notes

Verify the obsolete status of this specific part number before procurement planning. Confirm availability of the recommended substitute ISL12026IBZ-T or equivalent active components. Ensure that the I2C interface compatibility matches your system design. Check RoHS compliance status as the original part may not meet current environmental regulations. Validate package dimensions against your PCB footprint requirements.

Selection Notes

Select this component when a dedicated RTC IC with I2C connectivity is required for embedded applications. Consider the low standby current consumption for battery-operated designs. Evaluate the operating temperature range against your environmental conditions. Verify that the 8-SOIC package fits your assembly constraints. Compare performance metrics with newer active alternatives if long-term supply stability is a priority.

Part Context

The X1288 series represents Renesas' line of real-time clock integrated circuits designed for general-purpose timekeeping applications. These components are typically used in consumer electronics, industrial controls, and communication equipment where maintaining accurate time data is essential. The S16 suffix indicates specific packaging and tape-and-reel configuration details within the product family.

Replacement Considerations

The ISL12026IBZ-T is listed as a similar replacement option. Verify functional equivalence regarding interface protocols and pinout compatibility before substitution. Assess any differences in electrical specifications or package dimensions that may impact board layout.