RX4901CE XB B06

Real Time Clock Overview

The RX4901CE XB B06 is a Real-Time Clock (RTC) module manufactured by Epson Timing. It features an SPI-bus interface and operates within a supply voltage range of 1.6 V to 5.5 V. The device provides a time format of HH:MM:SS (24 hr) and a date format of YY-MM-DD-dd, with a storage capacity of 256 bytes. It utilizes backup switching for power retention and maintains a frequency stability of ±5 ppm at 3.0 V. The component is designed for surface mount installation in a reel package, supporting operating temperatures from -40°C to +105°C.

Real Time Clock Feature Summary

• SPI-bus interface with 3.0V operation
• ±5 ppm frequency stability
• 256-byte RTC storage capacity
• Backup switching capability

Real Time Clock Applications

• Industrial control systems requiring precise timing
• Embedded devices needing non-volatile timekeeping
• Automotive electronics operating in wide temperature ranges

Real Time Clock Procurement Notes

Verify the specific suffix 'B06' against official Epson documentation to confirm packaging quantity and tape-and-reel specifications. Ensure compatibility with SPI bus protocols in the target design. Confirm that the ±5 ppm stability meets system requirements for the intended operating temperature range of -40°C to +105°C.

Real Time Clock Selection Notes

Select this model when an SPI interface is preferred over I2C for the RX4901CE series. Compare the ±5 ppm stability against the ±3 ppm option available in the XS variant if higher precision is required. Verify that the 256-byte storage capacity suffices for application-specific data logging needs.

Real Time Clock Part Context

This part belongs to the RX4901CE series of real-time clock modules from Epson Timing. The series offers various interface options including I2C and SPI, with different stability grades denoted by suffixes such as XS (±3 ppm) and XB (±5 ppm). The RX4901CE is designed for applications requiring reliable timekeeping in compact surface-mount packages.

Real Time Clock Replacement Considerations

The RX4901CE XS A06 serves as a higher-stability alternative within the same series, offering ±3 ppm accuracy. Both parts share similar electrical characteristics and pinouts but differ in frequency tolerance. Verify software compatibility when switching between SPI variants.