RV-3028-C7TAQC

Real Time Clock Overview

The RV-3028-C7TAQC is a hermetically sealed SMD Real-Time Clock module integrating a CMOS circuit and a 32.768 kHz tuning fork crystal within a 3.2 x 1.5 x 0.8 mm SON-8 package. It operates on a supply voltage of 1.1 V to 5.5 V with a typical timekeeping current consumption of 45 nA at 3 V. The device provides factory-calibrated time accuracy of ±1 ppm at 25°C, supporting I²C communication up to 400 kHz. Key features include automatic backup switchover, trickle charging, programmable alarms, timers, external event timestamping, and 43 bytes of non-volatile user memory.

Real Time Clock Feature Summary

• Extreme low power consumption: 45 nA @ 3 V in timekeeping mode
• Wide operating voltage range: 1.1 V to 5.5 V
• High time accuracy: Factory calibrated to ±1 ppm @ 25°C
• Integrated non-volatile configuration with user-programmable offset

Real Time Clock Applications

• IoT devices
• Metering equipment
• Industrial systems
• Automotive electronics
• Health care devices
• Wearables and portables

Real Time Clock Procurement Notes

Verify the specific suffix TA (Temperature range -40 to +85°C) and QC (Commercial Grade) against project requirements. Confirm that the standard commercial grade qualification meets the target application's reliability standards before procurement.

Real Time Clock Selection Notes

Select this component for applications requiring ultra-low standby current and high long-term stability without external crystals. Ensure the system supports I²C Fast Mode (400 kHz). Consider the automotive AEC-Q200 qualified variant if the environment demands higher reliability standards than the commercial grade offers.

Real Time Clock Part Context

This part belongs to the RV-3028-C7 series of Real-Time Clock modules from Micro Crystal AG. These modules combine a quartz resonator with RTC logic in a miniature ceramic package, designed to replace traditional discrete RTC ICs and separate crystals in space-constrained designs.

Real Time Clock Replacement Considerations

For automotive applications requiring AEC-Q200 qualification, consider the RV-3028-C7QA variant. For general replacements, verify pin compatibility and software register mapping differences with existing RTC solutions.