RX-8025SA:AA3:PURE SN

Real Time Clock Overview

The RX-8025SA:AA3:PURE SN is a Real-Time Clock (RTC) IC manufactured by Epson Timing. It features an I2C bus interface and supports date formats of YY-MM-DD-dd and time formats of HH:MM:SS in 24-hour mode. The device operates within a supply voltage range of 1.7 V to 5.5 V and consumes a maximum current of 1.2 µA at 3 V or 1.8 µA at 5 V during timing operations. It is housed in a 14-SOP package with dimensions of 10.1 mm x 7.4 mm. The component functions reliably across an operating temperature range of -40°C to +85°C.

Real Time Clock Feature Summary

• I2C Bus Interface for simple two-wire serial communication
• Integrated Alarm, Calendar, Clock, Timer Interrupt, and Watchdog Timekeeper functions
• Low power consumption of 1.2µA @ 3V and 1.8µA @ 5V
• Wide operating voltage range from 1.7 V to 5.5 V

Real Time Clock Applications

• Industrial equipment requiring precise timekeeping
• Smart meters and utility devices
• Consumer electronics with battery backup requirements
• Data logging systems needing calendar and alarm features

Real Time Clock Procurement Notes

Verify the specific suffix :AA3 against official Epson documentation to confirm pinout and electrical characteristics match the design requirements. Ensure compatibility with the target I2C address configuration. Check for RoHS compliance status as indicated in the datasheet. Confirm availability through authorized distributors given potential supply chain variations.

Real Time Clock Selection Notes

Select this model when a SOP-14 package is preferred over smaller footprints like CE or SJ. It is suitable for applications requiring standard I2C connectivity without SPI speed demands. Consider the -40°C to +85°C temperature range for industrial environments. Compare against RX-8025SA variants if different accuracy grades or packaging options are needed.

Real Time Clock Part Context

This part belongs to the RX-8025SA series, which includes variants such as RX-8025SA:AA and RX-8025SA:AC. The SA designation indicates the 14-pin SOP package form factor. The series is widely used in general-purpose timing applications where reliability and low power are critical.

Real Time Clock Replacement Considerations

Direct substitutes include other RX-8025SA variants like RX-8025SA:AA or RX-8025SA:AC, provided the specific suffix requirements for accuracy and packaging align with the system design. Verify register compatibility before swapping.