RX8901CE XS B00

Real Time Clock Overview

The RX8901CE XS B00 is a Real-Time Clock (RTC) module manufactured by Epson Timing. It features an I2C bus interface and operates within a supply voltage range of 1.6 V to 5.5 V. The device provides timekeeping in HH:MM:SS (24-hour) format and date tracking in YY-MM-DD-dd format. It supports a frequency tolerance of +/-3 ppm across the operating temperature range of -40°C to +85°C. The component utilizes a 10-SMD, no-lead package with dimensions of 3.2 x 2.5 mm. It includes alarm functionality and does not feature battery backup switching.

Real Time Clock Feature Summary

• I2C bus interface for digital communication
• +/-3 ppm frequency tolerance at -40°C to +85°C
• Operating voltage range of 1.6 V to 5.5 V
• 10-SMD surface-mount package (3.2 x 2.5 mm)

Real Time Clock Applications

• Industrial control systems requiring precise timing
• Consumer electronics with low power constraints
• Data logging devices needing calendar functions

Real Time Clock Procurement Notes

Verify availability status as distribution may be restricted in certain regions. Confirm packaging type corresponds to reel quantities of 1000 units. Ensure compatibility with I2C bus voltage levels before integration into target circuit designs.

Real Time Clock Selection Notes

Select this model when a tight frequency tolerance of +/-3 ppm is required between -40°C and +85°C. Choose the XB variant if operation up to +105°C is needed, accepting +/-5 ppm tolerance. Verify that the absence of backup switching meets system power management requirements.

Real Time Clock Part Context

This part belongs to the RX8901CE series of high-precision RTCs from Epson Timing. It shares the same physical footprint and core architecture with variants like RX8901CE XB B06, differing primarily in frequency accuracy specifications and maximum operating temperature ratings.

Real Time Clock Replacement Considerations

Direct substitutes include other RX8901CE variants such as RX8901CE XB B06 for extended temperature ranges. Cross-reference pinouts and I2C addresses to ensure electrical compatibility during board-level replacements.