X1288S16I-2.7T1

Overview

The X1288S16I-2.7T1 is a Real Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation, designed for precise timekeeping and calendar tracking applications. It operates within a supply voltage range of 2.7V to 5.5V and features an I2C serial interface for communication. The device is housed in a 16-pin SOIC package with a width of 0.295 inches (7.50mm). It tracks hours, minutes, seconds, hundredths of a second, day of the week, date, month, and year, including leap year compensation.

Feature Summary

• Provides accurate real-time clock and calendar functionality with automatic leap year compensation
• Supports I2C two-wire serial interface for system communication
• Tracks time components including hours, minutes, seconds, and hundredths of a second

Applications

• Embedded systems requiring precise timekeeping
• Data logging equipment needing calendar functions
• Consumer electronics with time-sensitive operations

Procurement Notes

Verify the specific suffix 'I' indicates industrial temperature range compliance when sourcing replacements. Confirm the '2.7T1' designation matches the required tape-and-reel packaging format for automated assembly processes. Ensure the manufacturer is identified as Renesas Electronics Corporation to guarantee component authenticity and datasheet alignment.

Selection Notes

Select this component when a dedicated RTC with calendar capabilities is required alongside I2C connectivity. Consider the 16-SOIC package constraints for PCB layout space. Evaluate the 2.7V minimum operating voltage against the system's power rail availability to ensure reliable operation under all conditions without external level shifters.

Part Context

This part belongs to the X1288 family of real-time clock ICs from Renesas. It shares functional similarities with other variants like the X1288V14 series but differs in package type and pin count. The family is designed for low-power applications where maintaining accurate time and date information is critical for system synchronization and data integrity.

Replacement Considerations

Direct substitutes include the X1288S16-2.7T1 if industrial temperature rating is not strictly required. Verify pin compatibility and software register mapping before swapping with other RTC models from different manufacturers.