AB-RTC-TA-32.768KHZ-2-T3

Description：IC
Series：-

SKU:e625b27435dd Category: Real Time Clocks Brand: Abracon LLC

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Product introduction

Product Detailed Parameters

Description：IC
Series：-
Package：Tape & Reel (TR),Cut Tape (CT)
Mfr：Abracon LLC
Type：Clock/Calendar
Features：TCXO, Leap Year, Autocorrection, Alarm
Memory Size：-
Time Format：HH:MM:SS (24 hr)
Date Format：YY-MM-DD
Interface：I2C
Voltage - Supply：2.5V ~ 5.5V
Voltage - Supply, Battery：1.2V ~ 5.5V
Current - Timekeeping (Max)：1.25µA ~ 5.1 µA @ 1.2V ~ 5.5V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Grade：-
Qualification：-
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOP

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AB-RTC-TA-32.768KHZ-2-T3

Overview

The Abracon AB-RTC-TA-32.768KHZ-2 is a Real-Time Clock (RTC) module featuring an integrated, frequency-adjusted 32.768kHz crystal unit and I2C bus interface. It provides clock/calendar functionality with HH:MM:SS time format and YY-MM-DD date format. The device operates on a supply voltage of 2.5V to 5.5V, consuming 1.0µA to 5.1µA depending on voltage. Key features include leap year autocorrection, internal temperature sensing, and programmable frequency output selection (32.768kHz, 1024Hz, or 1Hz). It is housed in an 8-SOP package measuring 4.9 x 6.0 mm.

Feature Summary

Integrated build-in frequency adjusted 32.768kHz crystal unit
Internal temperature sensing capability with temperature compensation function
Leap years autocorrection for accurate long-term timekeeping
Configurable frequency output selection of 32.768kHz, 1024Hz, or 1Hz

Applications

IoT and wireless communication devices
Medical instrumentation
Utility meters
Data loggers and appliances
Consumer electronics

Procurement Notes

Verify the T3 suffix indicates a reel quantity of 3,000 pieces per reel. Confirm the 8-SOP package dimensions match the 4.9 x 6.0 mm specification. Ensure the operating voltage range of 2.5V to 5.5V aligns with system requirements. Check for REACH/RoHS II compliance status during sourcing.

Selection Notes

Select this component when an integrated RTC with a built-in crystal is required to save board space. The 8-SOP package suits surface mount applications. Consider the 1.0µA typical current consumption at 3.0V for low-power designs. Verify that the I2C interface speed supports up to 400 kHz for system compatibility.

Part Context

This part belongs to Abracon's line of Real Time Clock modules with I2C bus interfaces. It integrates the timing source and logic into a single SOP-8 package, simplifying design compared to discrete RTC and crystal combinations. The model specifies a standard ±20 ppm frequency stability.