RTC-4574NB:B3 ROHS

Real Time Clock Overview

The EPSON RTC-4574NB:B3 ROHS is a real-time clock (RTC) module designed for precise timekeeping in electronic systems. It integrates a quartz crystal oscillator and a lithium battery to maintain continuous operation during main power loss. The device provides accurate date and time data via a serial interface, supporting standard communication protocols. Key specifications include a low standby current consumption and a wide operating temperature range, ensuring reliability in various environmental conditions. The module is housed in a compact surface-mount package suitable for space-constrained applications.

Real Time Clock Feature Summary

• Integrated quartz crystal and lithium battery for autonomous timekeeping
• Low standby current consumption for extended battery life
• Serial interface for easy integration with microcontrollers
• Wide operating temperature range for industrial reliability

Real Time Clock Applications

• Data loggers requiring precise timestamping
• Industrial control systems needing reliable time references
• Consumer electronics with calendar functions

Real Time Clock Procurement Notes

Verify the specific suffix B3 against the manufacturer's datasheet to confirm pinout and packaging details. Ensure the ROHS compliance status matches current regulatory requirements for your region. Check for any obsolescence notices or lifecycle changes before finalizing procurement plans.

Real Time Clock Selection Notes

Select this module when a self-contained RTC solution with integrated battery is required. Compare standby current specifications against other modules if power efficiency is critical. Confirm interface compatibility with the host microcontroller's available serial ports.

Real Time Clock Part Context

This component belongs to EPSON's line of precision timing devices. It is part of a family of RTC modules offering varying levels of integration and accuracy. The NB designation typically indicates a specific package type or feature set within the broader product portfolio.

Real Time Clock Replacement Considerations

Check for direct replacements from EPSON with updated suffixes. Consider generic RTC ICs with external crystals and batteries if cost or availability is a constraint, though integration benefits may be lost.