RX-8025SA:AC3 PURE SN

Real Time Clock Overview

The EPSON RX-8025SA:AC3 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, supporting date formats of YY-MM-DD-dd and time formats of HH:MM:SS. The device operates within a supply voltage range of 1.7V to 5.5V and draws a maximum current of 1.2µA to 1.8µA at 3V to 5V. It features an alarm function and is housed in a 14-SOIC package with a width of 5.00mm. The component supports a working temperature range of -40°C to +85°C and maintains a frequency accuracy of 0+/-5ppm.

Real Time Clock Feature Summary

• I2C Bus Interface for simplified system connection
• High Frequency Accuracy of 0+/-5ppm
• Wide Operating Voltage Range from 1.7V to 5.5V
• Integrated Alarm Functionality

Real Time Clock Applications

• Industrial control systems requiring precise timekeeping
• Smart metering equipment
• Consumer electronics with low power requirements

Real Time Clock Procurement Notes

Verify the specific suffix 'AC3' against official Epson documentation to confirm packaging details, as this indicates reel packaging distinct from bulk variants. Confirm RoHS compliance status and REACH SVHC declarations prior to integration. Ensure the ordering quantity aligns with the manufacturer's standard packaging multiples.

Real Time Clock Selection Notes

Select this model when high precision (0+/-5ppm) is required alongside a wide operating voltage range. The 14-SOIC package is suitable for applications where board space allows for larger footprints compared to smaller SOP or WLP options. Verify that the I2C interface speed matches the host microcontroller capabilities.

Real Time Clock Part Context

This part belongs to the RX-8025SA family, characterized by the 'SA' designation indicating the classic SOP-14 large package format. The 'RX' prefix identifies it as a general-purpose series suitable for consumer and industrial devices, distinct from the automotive-grade RA series.

Real Time Clock Replacement Considerations

Direct substitutes include other RX-8025SA variants such as RX-8025SA:AA0 or RX-8025SAAC, provided the packaging difference (Reel vs Bulk) is accommodated in the assembly process. Cross-referencing pinouts and electrical parameters is essential before substitution.