RX-8025NB:AA3 PURE SN

Real Time Clock Overview

The EPSON RX-8025NB:AA3 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 alarm capabilities and is housed in a 14-SOIC package with a width of 5.00mm. The component is rated for industrial operating temperatures from -40°C to +85°C.

Real Time Clock Feature Summary

• I2C Bus Interface for digital communication
• Integrated Alarm Functionality
• Wide Supply Voltage Range (1.7V ~ 5.5V)
• Industrial Temperature Rating (-40°C ~ +85°C)

Real Time Clock Applications

• Clock/Calendar systems requiring I2C connectivity
• Data logging devices needing precise timekeeping
• Industrial control units operating in wide temperature ranges

Real Time Clock Procurement Notes

Verify the specific suffix 'PURE SN' against official Epson documentation to confirm material composition or lead-free status requirements. Confirm that the NB variant matches the electrical specifications of the standard SA series before procurement. Ensure compatibility with existing I2C bus protocols on the target PCB design.

Real Time Clock Selection Notes

Select this component when an I2C-compatible RTC with low power consumption is required for environments ranging from -40°C to +85°C. The 14-SOIC package is suitable for surface-mount assembly. Verify that the system voltage falls within the 1.7V to 5.5V operational window to ensure stable performance.

Real Time Clock Part Context

This part belongs to the Epson RX-8025SA family of real-time clocks. The RX-8025SA series is designed for applications requiring accurate timekeeping with minimal power usage. The NB designation typically indicates specific manufacturing or material variations within the broader SA product line, while AA3 denotes specific packaging or tape-and-reel configurations.

Real Time Clock Replacement Considerations

Direct replacements must match the 14-SOIC package, I2C interface, and voltage range. Check Epson's official substitution lists for equivalent parts within the RX-8025SA series. Ensure any substitute supports the same alarm and calendar features if those are critical to the application.