RV-8263-C8-32.768KHZ-20PPM-TA-QA

Real Time Clock Overview

The RV-8263-C8-32.768KHZ-20PPM-TA-QA is a hermetically sealed SMD Real-Time Clock module integrating a CMOS circuit and a 32.768 kHz tuning fork crystal within a 2.0 x 1.2 x 0.70 mm ceramic package. It operates on a supply voltage of 0.9 V to 5.5 V with a typical current consumption of 190 nA at 3 V during timekeeping. The device features an I²C interface supporting up to 400 kHz, automatic leap year calculation from 2000 to 2099, and programmable alarm functions for seconds through years. Time accuracy is specified at ±20 ppm at 25°C, with first-year aging limited to ±3 ppm.

Real Time Clock Feature Summary

• Hermetically sealed SON-8 ceramic package (2.0 x 1.2 x 0.70 mm) weighing 5.1 mg.
• Ultra-low power consumption of 190 nA typ. at 3 V in timekeeping mode.
• Wide operating voltage range from 0.9 V to 5.5 V.
• Automotive qualification according to AEC-Q200 (suffix QA).
• Programmable frequency offset register for calibration.

Real Time Clock Applications

• Internet of Things (IoT)
• Metering
• Industrial automation
• Automotive systems
• Healthcare devices
• Wearables and portables

Real Time Clock Procurement Notes

Verify the suffix 'QA' confirms AEC-Q200 automotive qualification rather than commercial grade. Confirm the 'TA' suffix indicates the standard -40 to +85°C temperature range. Ensure the ordering quantity matches the manufacturer's reel specifications, typically provided in 1,000 or 3,000 piece increments on 7-inch reels.

Real Time Clock Selection Notes

Select this component when a hermetically sealed package is required for vibration resistance, as it withstands 5000 g shock and 20 g vibration. The 0.9 V minimum supply voltage supports low-voltage battery operation. If higher precision than ±20 ppm is needed, request tighter tolerances directly from the manufacturer, as standard parts are fixed at this specification.

Real Time Clock Part Context

This part belongs to the RV-8263 series of Real-Time Clock Modules by Micro Crystal AG. The C8 designation identifies the specific 2.0 x 1.2 x 0.70 mm footprint. The RV-8263 integrates the oscillator and RTC logic with the quartz resonator, eliminating the need for external crystals and reducing board space compared to discrete RTC IC solutions.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify pin compatibility and register mapping if considering alternative RTC modules from other manufacturers, as no direct cross-reference is listed.