RX-8035SA:B3 PURE SN

Overview

The RX-8035SA:B3 PURE SN is a Real Time Clock (RTC) IC manufactured by Epson Timing, belonging to the RX-8035SA series. It features an I2C bus interface for data communication and operates within a supply voltage range of 2.4 V to 5.5 V. The device supports calendar functions including leap year compensation and alarm capabilities. It is designed for surface mount installation in a 12-VSOJ package with dimensions of 0.094 inches (2.40 mm) width. The component ensures reliable timekeeping across an industrial temperature range from -40°C to +85°C.

Feature Summary

• I2C Bus Interface: Supports standard and fast mode communication protocols.
• Calendar Functionality: Includes automatic leap year compensation up to 2099.
• Low Power Consumption: Typical current consumption of 2.5 µA at 3.0 V.
• Wide Operating Voltage: Compatible with systems ranging from 2.4 V to 5.5 V.

Applications

• Industrial control systems requiring precise time synchronization.
• Consumer electronics with battery backup requirements.
• Data logging devices needing accurate timestamping.
• Automotive infotainment and monitoring systems.

Procurement Notes

Verify the specific suffix B3 against the official Epson datasheet to confirm pinout and electrical characteristics. Ensure compatibility with the target PCB footprint for the 12-VSOJ package. Check for RoHS compliance status if required by regional regulations. Confirm availability through authorized distributors as lead times may vary based on production schedules.

Selection Notes

Select this model when an I2C interface is preferred over SPI or parallel connections. The 12-VSOJ package is suitable for applications with limited board space. Consider the operating temperature range of -40°C to +85°C for environmental suitability. Verify that the system voltage falls within the 2.4 V to 5.5 V operational window.

Part Context

This part is part of the RX-8035SA family, which offers various packaging and accuracy options. The 'PURE SN' designation typically indicates lead-free and halogen-free manufacturing processes. It serves as a drop-in replacement for older RTC models in designs requiring updated compliance standards while maintaining functional compatibility.

Replacement Considerations

Direct substitutes include other RX-8035SA variants with compatible packages. Verify pin-to-pin compatibility before replacing. Alternative interfaces like SPI-based RTCs require schematic modifications. Consult Epson's cross-reference guide for confirmed equivalent part numbers.