X1288S16I-2.7

Overview

The X1288S16I-2.7 is a Real Time Clock (RTC) integrated circuit from Renesas Electronics, housed in a 16-SOIC package. It operates within a supply voltage range of 2.7 to 5.5 volts and supports I2C and 2-Wire Serial interfaces. The device tracks time including hours, minutes, seconds, hundredths of a second, day of the week, day, month, and year. It features an alarm function, leap year compensation, CPU supervisor, and watchdog timer capabilities.

Feature Summary

• Tracks comprehensive time and calendar data including hundredths of a second and leap year adjustments
• Integrates CPU supervisor and watchdog timer functions for system reliability
• Supports I2C and 2-Wire Serial communication protocols

Applications

• Real-time clock and calendar systems requiring precise time tracking
• Embedded devices needing CPU supervision and watchdog monitoring
• Industrial equipment utilizing I2C or 2-Wire serial interfaces

Procurement Notes

Verify the specific suffix '2.7' indicates the minimum operating voltage requirement of 2.7V. Confirm the package type is 16-SOIC with a width of 0.295 inches. Ensure compatibility with I2C or 2-Wire Serial bus standards before integration. Check for any obsolescence notices as some variants like AT1 are marked obsolete.

Selection Notes

Select this component when a combined RTC, EEPROM, and supervisor solution is required in a single package. It is suitable for applications demanding high reliability through built-in watchdog and supervisor features. Consider the 2.7V minimum operating voltage for low-power designs. Verify interface compatibility with existing I2C or 2-Wire controllers in the target system architecture.

Part Context

The X1288 series combines real-time clock functionality with EEPROM storage and system management features. This specific model focuses on providing accurate timekeeping alongside critical system supervision. It serves as a compact solution for embedded systems that require both temporal data management and hardware protection mechanisms without external components.

Replacement Considerations

AB-RTCMC is listed as a similar substitute for related variants such as X1288S16I-2.7AT1. Verify electrical specifications and pinout compatibility before substitution. Ensure the replacement supports the same I2C or 2-Wire interface requirements and voltage ranges.