X1288S16-2.7T1

Overview

The X1288S16-2.7T1 is a Real Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation. It provides accurate timekeeping and calendar functions via an I2C interface. The device operates within a voltage range of 2.7V to 5.5V and supports the 1.8V to 5.5V range for specific configurations. It is housed in a 16-SOIC package with a width of 7.50mm. The component includes features such as alarm, leap year correction, supervisor, and watchdog timer capabilities. It maintains data using YY-MM-DD-dd format and consumes approximately 10µA to 20µA at operating voltages between 2.7V and 5V.

Feature Summary

• Provides accurate real-time clock and calendar functions with leap year compensation
• Integrates CPU supervisor and watchdog timer functionalities
• Supports 2-wire serial I2C communication interface
• Operates across wide voltage ranges including 2.7V to 5.5V

Applications

• Embedded systems requiring precise timekeeping
• Data logging equipment needing calendar tracking
• Industrial control units with watchdog requirements
• Consumer electronics with power management supervision

Procurement Notes

Verify the exact suffix 'T1' indicates tape and reel packaging configuration. Confirm the '2.7' designation aligns with the specified 2.7V minimum operating voltage requirement for your system design. Ensure compatibility with the 16-SOIC footprint dimensions during PCB layout verification. Check current availability status as this part number may be subject to discontinuation or lifecycle changes.

Selection Notes

Select this component when a combined RTC, EEPROM, and supervisor solution is required in a single package. Consider the I2C interface speed limitations and voltage level compatibility with the host microcontroller. Evaluate the need for internal backup power sources if continuous timekeeping is critical during main power loss. Compare power consumption specifications against battery life requirements for portable applications.

Part Context

The X1288 series from Renesas integrates multiple system management functions into a compact SOIC package. This specific model combines timekeeping with non-volatile memory and hardware monitoring. It serves as a cost-effective solution for reducing component count in embedded designs. The series is widely used in applications requiring reliable date/time tracking alongside system health supervision.

Replacement Considerations

Check for direct substitutes like the X1288S16I-2.7T1 for industrial temperature range variants. Verify pinout compatibility before replacing with other RTC-supervisor combinations. Review datasheet updates for any functional changes in newer revisions.