RV-8564-C3-32.768KHZ-10PPM-TA-QC

Real Time Clock Overview

The Micro Crystal RV-8564-C3 is a hermetically sealed SMD Real-Time Clock module integrating a CMOS circuit with a 32.768 kHz tuning fork crystal. It operates within a voltage range of 1.0 V to 5.5 V, consuming 250 nA in timekeeping mode at 3 V. The device provides year, month, date, weekday, hours, minutes, and seconds via an I²C-bus interface supporting up to 400 kHz. Key features include programmable alarms, timers, clock outputs (32.768 kHz, 1024 Hz, 32 Hz, 1 Hz), leap year calculation, and low voltage detection. It functions between -40°C and +85°C with a frequency tolerance of ±20 ppm.

Real Time Clock Feature Summary

• Hermetically sealed ceramic SON-10 package (3.7 x 2.5 x 0.9 mm) with metal lid connected to VSS.
• Ultra-low power consumption: 250 nA typical at 3 V during timekeeping.
• Wide operating voltage: 1.0 V to 5.5 V for timekeeping; 1.8 V to 5.5 V for I²C bus active.
• Integrated 32.768 kHz quartz oscillator with ±20 ppm frequency tolerance at 25°C.

Real Time Clock Applications

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

Real Time Clock Procurement Notes

This component is officially marked as a discontinued product by the manufacturer. Verification of current availability requires direct consultation with authorized distributors or the manufacturer's sales support. Ensure that any sourced units are genuine and match the specified SON-10 package dimensions and termination processing requirements.

Real Time Clock Selection Notes

Select this module when a hermetically sealed RTC with integrated quartz is required for harsh environments. It supports I²C communication up to 400 kHz and offers multiple clock output frequencies. The wide supply voltage range (1.0–5.5 V) accommodates various system designs. Note that automotive qualification (AEC-Q200) is available under specific ordering suffixes.

Real Time Clock Part Context

The RV-8564-C3 belongs to the RV-8564 family of real-time clock modules from Micro Crystal AG. The 'C3' designation indicates the specific 3.7 x 2.5 x 0.9 mm SON-10 package size. This series combines a tuning fork crystal resonator with CMOS oscillator circuitry in a miniature SMD ceramic package, designed for applications requiring high reliability and low power consumption.

Real Time Clock Replacement Considerations

As this is a discontinued product, alternative sourcing must verify compatibility with the SON-10 footprint and electrical specifications. No specific substitute part numbers are provided in the official documentation.