RTC-4574SA:B0 ROHS

Real Time Clock Overview

The RTC-4574SA:B0 ROHS is a Real Time Clock (RTC) integrated circuit manufactured by Epson Timing. It belongs to the RTC-4574SA series and features a 3-wire serial interface for communication. The device supports clock/calendar functions with date formats including YY-MM-DD-dd and time formats in HH:MM:SS (24-hour). It operates within a supply voltage range of 1.6V to 5.5V and maintains timing current consumption between 1µA and 2µA at 3V to 5V. The component is housed in a 14-SOP package and is designed for surface mount installation.

Real Time Clock Feature Summary

• Integrated 3-wire serial interface for system connectivity
• Supports auto leap year correction and alarm interrupt functions
• Wide operating temperature range from -40°C to +85°C
• Compliant with RoHS3 specifications

Real Time Clock Applications

• General purpose clock and calendar systems
• Data logging devices requiring precise timekeeping
• Embedded systems with limited power budgets

Real Time Clock Procurement Notes

Verify availability status as this component may be subject to discontinuation or limited stock conditions. Confirm specific ordering suffixes such as 'ROHS' against manufacturer datasheets to ensure compliance with environmental regulations. Check for alternative packaging options like tube or cut tape if standard reel quantities are not required.

Real Time Clock Selection Notes

Select this part when a low-power, serial-interface RTC is needed for applications operating between 1.6V and 5.5V. Ensure the design accommodates the 14-SOP footprint and 3-wire serial protocol. Consider thermal requirements for operation up to +85°C. Verify that the system's microcontroller supports the specific serial communication lines required by the device.

Real Time Clock Part Context

This component is part of the Epson RTC-4574SA family, which includes variants like RTC-4574SA:B PURE SN and RTC-4574SA:B3 ROHS. These parts share similar core functionalities but may differ in packaging, lead content, or specific interface configurations. The 'B0' suffix typically denotes a specific version within this series, often related to manufacturing lot or minor revision details.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers for RTC-4574SA:B0 ROHS were not found in the provided source material. Users should consult official Epson documentation or authorized distributors for verified cross-reference information.