RV-4162-C7-32.768KHZ-20PPM-TA-QC

Real Time Clock Overview

The RV-4162-C7 is a hermetically sealed SMT Real-Time Clock module integrating a CMOS circuit and a 32.768 kHz crystal within a ceramic package with a metal lid. It operates on an I2C bus interface at 400 kHz, supporting supply voltages from 1.0 V to 4.4 V during timekeeping and 1.3 V to 4.4 V during active communication. The device provides timekeeping accuracy of ±20 ppm at 25°C with a maximum aging rate of ±3 ppm in the first year. Current consumption is typically 350 nA at 3 V. It features programmable clock outputs ranging from 32.768 kHz to 1 Hz, alarm functions, watchdog capabilities, and automatic leap year calculation.

Real Time Clock Feature Summary

• Hermetically sealed ceramic package with integrated 32.768 kHz crystal and CMOS oscillator
• Low power consumption of 350 nA typical at 3 V with operating voltage range of 1.0 V to 4.4 V
• I2C-bus interface (400 kHz) providing full date/time data including weekday and century bits
• Time accuracy of ±20 ppm at 25°C with user-programmable frequency offset compensation

Real Time Clock Applications

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

Real Time Clock Procurement Notes

Verify that the specific ordering suffix matches the required temperature range and qualification grade. The 'TA' suffix indicates a standard operating temperature range of -40 to +85°C. The 'QC' suffix denotes Commercial Grade; select 'QA' if Automotive Grade AEC-Q200 qualification is required. Confirm package termination processing requirements align with IPC/JEDEC J-STD-020C standards for 260°C reflow soldering.

Real Time Clock Selection Notes

Select this component when a hermetically sealed RTC with low power consumption and high stability is needed. Ensure the system supports I2C communication at 400 kHz. Verify that the 1.0 V minimum operating voltage meets the lowest battery or supply rail conditions. Consider the ±20 ppm tolerance at 25°C and the ±3 ppm annual aging rate for long-term timing precision requirements.

Real Time Clock Part Context

The RV-4162-C7 belongs to the Micro Crystal RV-4162-C7 series of real-time clock modules. These modules are designed for surface mount technology (SMD/SMT) applications requiring precise timekeeping in compact spaces. The C7 designation refers to the specific package dimensions of 3.2 x 1.5 x 0.8 mm.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.