RX-8025SA:AA0

Real Time Clock Overview

The RX-8025SA:AA0 is a Real-Time Clock (RTC) IC manufactured by Epson Timing, designed for precise timekeeping in electronic systems. It features an I2C bus interface and operates within a supply voltage range of 1.7 V to 5.5 V. The device maintains accuracy with a typical drift of +/-23 ppm and supports date formats including YY-MM-DD-dd and time formats HH:MM:SS (24 hr). Packaged in a SOP-14 surface-mount format, it functions reliably across a temperature range of -40°C to +85°C.

Real Time Clock Feature Summary

• Integrated I2C Bus Interface for serial communication
• Wide operating voltage range from 1.7 V to 5.5 V
• High precision clock accuracy of +/-23 ppm
• Built-in calendar and alarm functions

Real Time Clock Applications

• General-purpose real-time clocking in embedded systems
• Data logging devices requiring accurate timestamping
• Industrial equipment needing reliable time synchronization

Real Time Clock Procurement Notes

Verify the specific suffix AA0 against official Epson documentation to confirm package and compliance details. Ensure compatibility with system voltage levels between 1.7 V and 5.5 V. Confirm I2C address settings and register configurations match the target microcontroller design before integration.

Real Time Clock Selection Notes

Select this component when a low-power, high-accuracy RTC with I2C connectivity is required. The SOP-14 package suits space-constrained PCB layouts. Consider the +/-23 ppm accuracy for applications where long-term drift must be minimized without external temperature compensation circuits.

Real Time Clock Part Context

This part belongs to the RX-8025SA series of Epson Timing RTCs. It shares core functionalities with variants like RX-8025SA:AA3 but may differ in packaging or compliance markings. The series is known for integrating oscillators and calibration features into a compact form factor.

Real Time Clock Replacement Considerations

Direct pin-to-pin replacements should be verified against Epson's cross-reference guides. Alternative RTCs must match the I2C interface, voltage range, and SOP-14 footprint. Check if substitute parts offer comparable accuracy and feature sets such as alarms and calendar functions.