RV-8063-C7-32.768KHZ-20PPM-TA-QC

Real Time Clock Overview

The RV-8063-C7 is a Surface Mount Technology (SMT) Real-Time Clock module integrating a CMOS circuit and a 32.768 kHz tuning fork crystal within a hermetically sealed ceramic package measuring 3.2 x 1.5 x 0.8 mm. It utilizes a 3-wire SPI interface operating at up to 7 MHz. The device maintains timekeeping with a current consumption of 190 nA at 3 V and supports a wide supply voltage range from 0.9 V to 5.5 V. Key features include automatic leap year calculation for 2000–2099, programmable offset compensation, oscillator stop detection, and multiple alarm functions.

Real Time Clock Feature Summary

• Hermetically sealed SMT ceramic package with metal lid connected to VSS
• Ultra-low power consumption: 190 nA typical in timekeeping mode at 3 V
• Wide operating voltage range: 0.9 V to 5.5 V
• Time accuracy of ±20 ppm at 25°C with user-programmable offset

Real Time Clock Applications

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

Real Time Clock Procurement Notes

Verify the specific ordering suffixes against the manufacturer's datasheet to confirm temperature range and qualification grade. The standard TA suffix indicates an operating temperature of -40 to +85°C, while QC denotes commercial grade. Automotive-grade variants are available with the QA suffix under AEC-Q200 qualification. Confirm package termination processing requirements, which specify Au-flashed pads compatible with IPC/JEDEC J-STD-020C standards.

Real Time Clock Selection Notes

Select this module when a compact footprint and high reliability are required due to the hermetic ceramic construction. Ensure the system design accommodates the 3-wire SPI interface rather than I2C. Verify that the supply voltage remains within the 0.9 V to 5.5 V range for both active and timekeeping modes. Consider the ±20 ppm frequency tolerance at 25°C and the need for external offset programming if tighter long-term stability is required beyond the initial aging specification.

Real Time Clock Part Context

This component belongs to the RV-8063-C7 series of Real-Time Clock modules manufactured by Micro Crystal AG. It is part of a family of miniature RTC solutions designed for cost-sensitive, high-volume applications requiring precise timekeeping in space-constrained environments. The C7 designation refers specifically to the 3.2 x 1.5 x 0.8 mm package size.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material.