ECS-RTC-3225-5699C3-TR

Real Time Clock Overview

The ECS-RTC-3225-5699C3 is a low-power Real Time Clock module featuring an integrated I²C interface and a built-in 32.768 kHz Temperature Compensated Crystal Oscillator (TCXO). It provides calendar, clock, timer, and temperature sensing functions with ±3 ppm stability across the -40°C to +85°C range. The device supports dual power supply modes: normal operation at 2.5V to 5.0V, and battery backup mode where VDD equals VBAT between 1.6V and 5.0V. Battery supply current consumption is 1.0 µA. The unit includes a backup battery switchover function and an on-chip temperature sensor accurate to ±5°C at 3.0V.

Real Time Clock Feature Summary

• Integrated 32.768 kHz TCXO with ±3 ppm stability over -40°C to +85°C
• Built-in temperature sensor with ±5°C accuracy at 3.0V
• Backup battery switchover capability for continuous timekeeping
• Low power consumption with 1.0 µA battery supply current

Real Time Clock Applications

• Real-time clock modules requiring high frequency stability
• Battery-powered devices needing extended temperature range operation
• Systems integrating timekeeping and environmental monitoring

Real Time Clock Procurement Notes

Verify that the ordering suffix matches the required reel or cut tape packaging configuration. Confirm voltage requirements align with system design, noting the minimum 2.5V requirement for oscillation stabilization when VDD and VBAT are supplied separately. Ensure compatibility with I²C bus protocols used in the target application.

Real Time Clock Selection Notes

Select this component when ±3 ppm stability is critical compared to standard crystal oscillators. Consider the integrated temperature sensor if ambient monitoring is required alongside timekeeping. Verify that the operating voltage range of 1.6V to 5.0V fits the system's power architecture, particularly for battery-backed scenarios.

Real Time Clock Part Context

This part belongs to the ECS-RTC-3225 series of real-time clock modules. It distinguishes itself by incorporating a TCXO rather than a standard crystal, providing superior frequency stability across wide temperature variations. The 3225 package size indicates a compact surface-mount form factor suitable for space-constrained designs.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternatives based on matching I²C interface, 32.768 kHz TCXO integration, and ±3 ppm stability specifications.