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    Parts    AB-RTCMC-32.768KHZ-AIGZ-S7-T
AB-RTCMC-32.768KHZ-AIGZ-S7-T

AB-RTCMC-32.768KHZ-AIGZ-S7-T

Abracon LLC
Real Time Clock (RTC) IC Clock/Calendar I2C, 2-Wire Serial 8-WCDFN
Active5,957 in stock
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Overview

The AB-RTCMC-32.768KHZ-AIGZ-S7-T is an ultra-miniature Real Time Clock (RTC) module that integrates a 32.768 kHz crystal oscillator within a compact 8-WCDFN ceramic package. It provides comprehensive timekeeping functions including year, month, day, and time down to hundredths of seconds, all accessible via a standard I2C interface. This module is designed for extremely low power consumption, operating at voltages as low as 1.0V for timekeeping.

Why Choose This Part

The integration of the crystal oscillator eliminates the need for external tuning capacitors and simplifies circuit design while ensuring high accuracy. Its wide supply voltage range of 1.0V to 4.4V allows for direct operation from various battery chemistries, and the included software clock calibration helps maintain precision over time.

Applications

Battery-Powered IoT Nodes
Ideal for remote sensors that require precise time stamping and low standby current to maximize battery life.
System Watchdog Monitoring
Utilizes the integrated programmable watchdog timer to reset or alert the host MCU during software hangs.
Industrial Data Loggers
Provides accurate date and time tracking across a wide -40 to 85 degree Celsius operating range for environmental monitoring.
Portable Consumer Electronics
Saves PCB space in wearables and handhelds thanks to the integrated crystal and small 3.2 x 1.5 mm footprint.

Key Specifications

Type Clock/Calendar
Features Alarm, Leap Year, Watchdog Timer
Interface I2C, 2-Wire Serial
Date Format YY-MM-DD-dd
Time Format HH:MM:SS:hh (24 hr)
Mounting Type Surface Mount
Package / Case 8-WCDFN
Voltage - Supply 1V ~ 4.4V
Operating Temperature -40degC ~ 85degC
Supplier Device Package 8-CLCC (3.2x1.5)
Current - Timekeeping (Max) 0.4uA ~ 0.95uA @ 1V ~ 4.4V

Getting Started

To implement this RTC, connect the SDA and SCL lines to your microcontroller's I2C bus with appropriate pull-up resistors and provide a stable decoupling capacitor on the VDD pin. Developers can verify communication by reading the seconds register or configuring the 32.768kHz square wave output pin to confirm oscillator stability.