V3025SO28A+

Real Time Clock Overview

The V3025SO28A+ is a low-power CMOS real-time clock (RTC) module manufactured by EM Microelectronic. It features an integrated battery switchover mechanism and digital trimming capabilities for accurate timekeeping. The device operates with a typical standby current of 2.5µA and a maximum timekeeping current of 15µA at 5.5V. It utilizes a 32kHz crystal input and provides an access time of 50ns. The component is housed in a 28-SOIC package with a width of 7.50mm and contains 8 bits of memory for calendar functions.

Real Time Clock Feature Summary

• Integrated battery switchover ensures continuous operation during power transitions
• Digital trimming functionality maintains precise timekeeping accuracy
• Low power consumption design suitable for space-saving applications

Real Time Clock Applications

• Time-sensitive embedded systems requiring accurate calendar tracking
• Space-constrained electronic devices needing compact RTC solutions
• Battery-powered equipment utilizing backup power management

Real Time Clock Procurement Notes

Verify component authenticity through authorized distributors as the part may be discontinued. Confirm RoHS certification status prior to ordering. Check tariff applicability if shipping to the United States. Ensure compatibility with existing 28-SOIC footprints and voltage requirements.

Real Time Clock Selection Notes

Select this component for applications prioritizing low standby current and integrated battery management. Consider the 28-SOIC package size for spatial constraints. Evaluate the 50ns access time against system timing requirements. Verify digital trimming needs for long-term accuracy without external calibration.

Real Time Clock Part Context

The V3025 series represents a family of low-power CMOS real-time clocks designed for efficient timekeeping. The SO28 variant specifically adapts the core RTC functionality into a surface-mount 28-pin package. This configuration supports integration into modern PCB layouts while maintaining the reliability and low power characteristics of the base V3025 architecture.

Real Time Clock Replacement Considerations

Public confirmed substitute part numbers are not available in verified documentation. The V3025SO28A+ is listed as no longer manufactured. Engineers should consult official EM Microelectronic channels for current equivalent recommendations or legacy support options.