AB-RTC-TC-32.768KHZ-2-T3

Overview

The Abracon AB-RTC-TC-32.768KHZ-2-T3 is a Real-Time Clock (RTC) module featuring an integrated, frequency-adjusted 32.768kHz crystal unit and a temperature sensor. It utilizes an I2C bus interface for configuration and data access. The device operates within a supply voltage range of 1.6V to 5.5V and supports battery backup from 1.2V to 5.5V. Current consumption ranges from 1.0µA to 5.1µA depending on the operating voltage. It provides timekeeping accuracy with ±3.4ppm stability across the -40°C to +85°C temperature range and includes leap year autocorrection.

Feature Summary

• Integrated 32.768kHz crystal unit with ±3.4ppm stability (-40°C to +85°C)
• Built-in temperature sensor with ±5°C accuracy
• I2C communication interface supporting up to 400 kHz
• Leap year autocorrection function

Applications

• IoT devices
• Wireless communication systems
• Medical instrumentation
• Utility meters
• Data loggers and appliances

Procurement Notes

Verify the package type matches the required SOP-14 footprint. Confirm that the supply voltage meets the minimum 1.6V requirement for proper oscillation stabilization. Ensure the design accounts for the specified ESD protection levels during handling.

Selection Notes

Select this component when a compact RTC solution with built-in frequency adjustment is needed. The wide voltage range accommodates various system power rails. Consider the 1.0µA typical current consumption for low-power applications requiring precise calendar tracking without external crystals.

Part Context

This part belongs to the AB-RTC-TC series of real-time clock modules. It integrates the timing source and logic into a single 14-SOP package, simplifying PCB layout by eliminating the need for discrete crystal components typically required in standard RTC designs.

Replacement Considerations

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