RV-8263-C7-32.768KHZ-20PPM-TA-QA

Real Time Clock Overview

The RV-8263-C7-32.768KHZ-20PPM-TA-QA is a hermetically sealed SMT Real-Time Clock module by Micro Crystal AG, integrating a CMOS circuit with a 32.768 kHz tuning fork crystal in a 3.2 x 1.5 x 0.8 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 provides I²C interface support up to 400 kHz and maintains a frequency tolerance of ±20 ppm at 25°C. It features automatic leap year calculation from 2000 to 2099, programmable offset registers, and alarm functions for various time units.

Real Time Clock Feature Summary

• Hermetically sealed ceramic package with metal lid connected to ground (VSS).
• 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 standard.

Real Time Clock Applications

• Internet of Things (IoT) devices
• Metering equipment
• Industrial automation systems
• Automotive electronics
• Healthcare monitoring devices

Real Time Clock Procurement Notes

Verify the specific suffix 'QA' confirms AEC-Q200 automotive qualification status before procurement. Ensure the ordering quantity matches the manufacturer's reel specifications, typically provided in 1,000 or 3,000 piece increments on 7-inch reels. Confirm that the soldering process adheres to IPC/JEDEC J-STD-020C standards for Au flashed pads, limiting reflow temperature to 260°C for 20-40 seconds.

Real Time Clock Selection Notes

Select this component when high accuracy (±20 ppm) and low standby current are critical. The wide voltage range supports both 1.8 V and 5.5 V logic levels. The integrated crystal eliminates external oscillator requirements. Consider the physical dimensions (3.2 x 1.5 x 0.8 mm) for space-constrained PCB layouts. Verify if the standard commercial grade suffices or if the QA automotive grade is required for the target application environment.

Real Time Clock Part Context

This part belongs to the RV-8263 series of Real-Time Clock modules from Micro Crystal AG. The C7 designation refers to the specific 3.2 x 1.5 x 0.8 mm ceramic package size. The TA suffix indicates a standard operating temperature range of -40°C to +85°C. This series is designed for miniature applications requiring precise timekeeping without complex external components.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Micro Crystal AG directly for cross-reference recommendations or alternative modules within the RV-8263 family that may offer different package sizes or qualification grades.