RX4901CE XS D00

Real Time Clock Overview

The RX4901CE XS D00 is a Real Time Clock (RTC) manufactured by Epson Timing, belonging to the RX4901CE series. It features a built-in frequency-adjusted 32.768 kHz crystal unit and a Digital Temperature Compensated Crystal Oscillator (DTCXO). The device supports 3-wire or 4-wire SPI bus interfaces and includes an auto power switching circuit for seamless transition between main and backup supplies. Key specifications include a high stability accuracy of ±3.0 ppm (-40°C to +85°C), low current consumption of 240 nA at 3V, and a time stamp function capable of storing up to 32 records.

Real Time Clock Feature Summary

• Built-in 32.768 kHz DTCXO with ±3.0 ppm stability (-40°C to +85°C)
• Supports 3-wire/4-wire SPI bus interface
• Auto power switching from VDD to VBAT
• Time stamp function with up to 32 records

Real Time Clock Applications

• Industrial equipment requiring precise timekeeping
• Data logging systems needing timestamp capabilities
• Portable devices with battery backup requirements

Real Time Clock Procurement Notes

Verify the specific suffix 'XS D00' against official Epson documentation to confirm packaging quantity and reel specifications. Ensure compatibility with existing SPI bus configurations in the target design. Check for any regional distribution restrictions or limited availability status prior to ordering.

Real Time Clock Selection Notes

Select this component when high stability (±3.0 ppm) is required over a wide temperature range (-40°C to +85°C). The integrated DTCXO eliminates the need for external temperature compensation circuits. Consider the low current consumption (240 nA) for battery-operated applications. Verify that the system supports the 3-wire or 4-wire SPI protocol.

Real Time Clock Part Context

This part belongs to the Epson RX4901CE series of real-time clocks. The series is characterized by its compact size (3.2 x 2.5 mm), low power consumption, and integrated crystal oscillator. The 'XS' designation typically indicates the high-stability variant with DTCXO technology.

Real Time Clock Replacement Considerations

No public confirmed substitute part numbers are available in the provided data. Consult Epson's official cross-reference guides for potential alternatives if this specific suffix is unavailable.