RTC-4574SA:B0:PURE SN

Real Time Clock Overview

The RTC-4574SA:B0:PURE SN is a Real Time Clock (RTC) IC manufactured by Epson Timing. It features a serial interface and operates within a supply voltage range of 1.6V to 5.5V. The device provides clock/calendar functionality with an alarm feature, housed in a 14-SOP package. It supports surface mount installation and functions across a temperature range of -40°C to 85°C. The component is currently obsolete.

Real Time Clock Feature Summary

• Provides real-time clock and calendar counting capabilities via a serial interface.
• Includes an alarm function for time-based event triggering.
• Operates on a wide supply voltage range from 1.6V to 5.5V.

Real Time Clock Applications

• General purpose timing circuits
• Data logging systems
• Portable electronic devices

Real Time Clock Procurement Notes

This component is officially discontinued and no longer manufactured by Epson Timing. Verification of availability should focus on surplus distributors or secondary markets. Cross-reference with the official End-of-Life notification documents to confirm final production dates and ensure compliance with legacy support requirements before procurement planning.

Real Time Clock Selection Notes

Due to the obsolete status of this part, direct replacement sourcing is required. Designers should evaluate alternative RTC components that offer compatible pinouts and electrical specifications. Verify that substitute parts meet the required operating temperature range and voltage constraints. Review datasheets for interface compatibility to ensure seamless integration into existing system architectures without hardware modifications.

Real Time Clock Part Context

The RTC-4574SA series represents Epson's line of serial real-time clock integrated circuits. These components are designed for applications requiring accurate timekeeping with low power consumption. The specific model utilizes a standard SOP package suitable for automated surface-mount assembly processes. This series is widely recognized in industrial and consumer electronics for its reliability and ease of integration via serial communication protocols.

Real Time Clock Replacement Considerations

DS1392U-33+ is a confirmed similar substitute available from Analog Devices Inc./Maxim Integrated.

Real Time Clock FAQ

What is the current manufacturing status of the RTC-4574SA:B0:PURE SN?

The component is obsolete and has been discontinued by the manufacturer.

Does this RTC include leap year compensation?

Official documentation confirms the presence of an alarm feature, but specific leap year handling details are not explicitly verified in the provided source data.

What is the maximum current consumption during operation?

Specific current consumption values are not provided in the available verification data.