RV-8564-C2-32.768KHZ-20PPM-TA-QC

Real Time Clock Overview

The RV-8564-C2 is a hermetically sealed SMT Real-Time Clock module integrating a CMOS circuit and a 32.768 kHz tuning fork crystal within a 5.0 x 3.2 x 1.2 mm ceramic package. It operates on a supply voltage of 1.0 V to 5.5 V for timekeeping and 1.8 V to 5.5 V during I2C bus activity, with typical current consumption of 250 nA at 3 V. The device provides year, month, date, weekday, hours, minutes, and seconds with leap year calculation and a century bit. Time accuracy is ±20 ppm at 25°C, and it supports programmable clock outputs at 32.768 kHz, 1024 Hz, 32 Hz, and 1 Hz via an I2C interface up to 400 kHz.

Real Time Clock Feature Summary

• Hermetically sealed SON-10 ceramic package with Au flashed pads
• Low power consumption: 250 nA @ 3 V in time keeping mode
• Wide operating voltage range: 1.2 V to 5.5 V
• Time accuracy: ±20 ppm @ 25°C with ±3 ppm first-year aging

Real Time Clock Applications

• IoT devices
• Metering systems
• Industrial equipment
• Portable electronics
• Automotive applications (with AEC-Q200 qualification)

Real Time Clock Procurement Notes

Verify the specific ordering suffixes for temperature range and automotive qualification when sourcing. The TA suffix indicates standard -40 to +85°C operation, while QA denotes AEC-Q200 compliance. Confirm package termination processing requirements against IPC/JEDEC J-STD-020C standards for soldering at 260°C. Check for availability as this product may be discontinued.

Real Time Clock Selection Notes

Select the RV-8564-C2 for applications requiring high time accuracy and low power consumption in a compact form factor. Ensure the system voltage falls within the 1.0 V to 5.5 V range for continuous timekeeping. Consider the AEC-Q200 qualified version if the application demands automotive reliability standards. Verify that the I2C bus speed does not exceed 400 kHz.

Real Time Clock Part Context

The RV-8564-C2 belongs to Micro Crystal's RTC module family, combining a quartz resonator with oscillator and logic circuits. It replaces discrete components by providing a complete timekeeping solution in a miniature surface-mount package. The module is designed for long-term stability and reliability in various electronic environments.

Real Time Clock Replacement Considerations

Check for direct substitutes from Micro Crystal or other manufacturers offering similar SON-10 packages with I2C interfaces. Verify pin compatibility and electrical specifications such as supply voltage and current consumption. Ensure the replacement meets the required temperature range and accuracy specifications.