PCA8802U/2AA/1,026

Real Time Clock Overview

The PCA8802U/2AA/1,026 is a CMOS integrated circuit designed for battery operation, typically supplied by button cells or flexible polymer batteries. It functions as an ultra-low power oscillator with an integrated binary counter and real-time clock (RTC) capabilities. The device features a unique ID and square wave output, utilizing an I²C 2-Wire Serial interface for communication. It supports binary date format and is classified under Real Time Clocks within the Clock & Timer ICs category.

Real Time Clock Feature Summary

• Ultra-low power oscillator design optimized for battery operation
• Integrated binary counter with real-time clock functionality
• I²C 2-Wire Serial interface for data communication
• Includes unique identification feature

Real Time Clock Applications

• Battery-powered smartcard applications
• Systems requiring ultra-low power real-time tracking
• Devices utilizing button cell or flexible polymer batteries

Real Time Clock Procurement Notes

Verify component status as obsolete or limited supply through official NXP channels. Confirm package type and environmental compliance such as RoHS before procurement. Ensure interface compatibility with host systems using I²C protocols. Check for alternative die-level sourcing options if standard packaging is unavailable.

Real Time Clock Selection Notes

Select this component for applications demanding minimal power consumption in battery-operated environments. Consider its die-level form factor and I²C interface requirements during system integration. Evaluate compatibility with binary date formats and unique ID needs for security or identification purposes.

Real Time Clock Part Context

This part belongs to the PCA88 series of real-time clock ICs from NXP Semiconductors. It is specifically engineered for low-power, battery-supplied systems where accurate timekeeping and minimal energy usage are critical. The series includes variants like the PCA8802CX8/B/1,027, sharing similar core functionalities but potentially differing in packaging or specific configuration details.

Real Time Clock Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the component is marked obsolete, direct replacements may require consulting NXP for current equivalents or evaluating functional alternatives with compatible I²C interfaces and low-power RTC capabilities.