RX4901CE XS D06

Real Time Clock Overview

The EPSON RX4901CE XS D06 is a Real-Time Clock (RTC) IC featuring an integrated SPI interface and built-in frequency-adjusted 32.768 kHz crystal unit. It operates within a supply voltage range of 1.6V to 5.5V, with typical current consumption of 1.5µA at 3V. The device supports HH:MM:SS time and YY-MM-DD date formats, offering high stability with a monthly rate of ±8 seconds (-40°C to +85°C). It includes alarm functions, timestamp capabilities, and automatic power switching between VDD and VBAT supplies.

Real Time Clock Feature Summary

• Integrated 32.768 kHz crystal unit with high stability (±3.0 x 10^-6 / -40°C to +85°C)
• SPI bus interface supporting 3-wire or 4-wire configurations
• Automatic power switching function monitoring VDD/VBAT voltage levels
• Supports up to 32 timestamps and multiple interrupt outputs (alarm, wakeup, self-monitoring)

Real Time Clock Applications

• Data logging systems requiring precise time stamping
• Battery-powered embedded devices needing low standby current
• Industrial equipment operating in wide temperature ranges

Real Time Clock Procurement Notes

Verify the specific suffix 'XS D06' against official Epson documentation to confirm accuracy class and package variant. Confirm RoHS compliance status and moisture sensitivity level (MSL 1) prior to assembly. Ensure ordering quantities align with standard reel sizes if applicable.

Real Time Clock Selection Notes

Select this model for applications requiring SPI connectivity and high-frequency stability without external crystals. Compare against XB variants if lower stability specifications are acceptable. Verify voltage requirements match the system's 1.6V-5.5V operational range.

Real Time Clock Part Context

This component belongs to the RX4901CE series of real-time clock modules from Epson Timing. The series integrates oscillator circuits and memory, reducing board space compared to discrete RTC solutions. Variants differ primarily by accuracy class (XS vs XB) and packaging options.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-reference with other Epson RTC models such as RX8901CE only if interface and pinout compatibility is verified through official datasheets.