RX-8025SAAA0 PURE SN

Real Time Clock Overview

The EPSON RX-8025SAAA0 PURE SN is a Real-Time Clock (RTC) integrated circuit belonging to the RX-8025SA series. It provides clock/calendar functions via an I2C bus interface within a 14-SOP surface-mount package. The device operates on a supply voltage ranging from 1.7V to 5.5V and maintains timekeeping with a maximum current consumption of 1.2µA to 1.8µA at 3V to 5V. It supports date formats including YY-MM-DD-dd and time formats HH:MM:SS (24-hour). The component is rated for industrial operating temperatures between -40°C and +85°C.

Real Time Clock Feature Summary

• I2C Bus Interface: Utilizes a standard two-wire serial communication protocol for data exchange.
• Wide Voltage Operation: Supports power supply voltages from 1.7V up to 5.5V.
• Low Power Consumption: Maximum current draw specified as 1.2µA to 1.8µA during operation at 3V to 5V.
• Industrial Temperature Range: Designed to function reliably in environments from -40°C to +85°C.

Real Time Clock Applications

• Data logging systems requiring precise timestamping.
• Consumer electronics with battery backup requirements.
• Industrial control equipment needing reliable timekeeping.
• Automotive infotainment or monitoring subsystems.

Real Time Clock Procurement Notes

Verify the specific suffix 'AA0' against official Epson documentation to confirm packaging type, as variations exist within the RX-8025SA family. Confirm RoHS compliance status and REACH SVHC declarations prior to integration. Ensure the ordering quantity matches the manufacturer's standard packing configuration to avoid handling discrepancies.

Real Time Clock Selection Notes

Select this model when an I2C-compatible RTC with wide voltage tolerance is required. Compare the 1.2µA–1.8µA current consumption against system power budgets. Verify that the 14-SOP package dimensions fit the PCB layout constraints. Check if the +/-5ppm accuracy specification meets the application's timing stability needs without external compensation.

Real Time Clock Part Context

This part belongs to the Epson RX-8025SA series of real-time clocks. The series includes variants with different suffixes indicating packaging (e.g., tube vs. reel) and specific feature sets. The RX-8025SAAC and RX-8025SA:AA are related models within the same functional family but may differ in shipping format or minor electrical characteristics.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers for this specific variant are not available in the provided source material. Cross-referencing with other I2C RTCs requires verifying pin compatibility and register mapping differences.