RX4901CE XB C00

Real Time Clock Overview

The Epson RX4901CE XB C00 is a Real-Time Clock (RTC) integrated circuit manufactured by Epson Timing. It features a 4-wire SPI bus interface and operates within a supply voltage range of 1.6V to 5.5V. The component provides clock/calendar functionality with HH:MM:SS time format and YY-MM-DD date format. It supports an alarm feature and draws a maximum current of 1.5µA at 3V. The device is housed in a 10-SMD, no-lead package with dimensions of 3.2x2.5mm and a maximum thickness of 1.0mm.

Real Time Clock Feature Summary

• 4-Wire SPI Bus Interface
• Supply Voltage Range: 1.6V to 5.5V
• Operating Temperature: -40°C to +85°C
• Low Power Consumption: 1.5µA @ 3V

Real Time Clock Applications

• Industrial control systems requiring precise timekeeping
• Consumer electronics with battery backup needs
• Data logging devices
• Embedded systems with SPI communication protocols

Real Time Clock Procurement Notes

Verify the specific suffix 'XB C00' against official Epson documentation to confirm pinout and electrical characteristics, as suffixes often denote packaging or temperature variations. Ensure compatibility with the target system's SPI protocol and voltage levels before integration. Check for RoHS compliance status if required by regional regulations.

Real Time Clock Selection Notes

Select this component when a low-power RTC with SPI interface is required. The 1.6V minimum operating voltage makes it suitable for battery-backed applications. The 10-SMD package is appropriate for space-constrained PCB designs. Verify that the ±5.0 x 10^-6 stability meets the application's timing accuracy requirements.

Real Time Clock Part Context

The RX4901CE series includes variants such as XS and XB, distinguished by frequency stability and temperature ranges. The XB variant typically offers ±5.0 x 10^-6 stability over the commercial temperature range. This part belongs to the broader category of clock and timer ICs used for maintaining accurate time in electronic systems.

Real Time Clock Replacement Considerations

Direct replacements may include other Epson RTCs from the same family with compatible interfaces. Verify pin-to-pin compatibility and electrical specifications before substituting. Cross-referencing with distributor databases can help identify equivalent parts from other manufacturers.