AB-RTCMC-32.768KHZ-ZIZE-S2-T

Overview

The AB-RTCMC-32.768KHZ-ZIZE-S2-T is a Real-Time Clock (RTC) module manufactured by Abracon LLC, featuring an integrated SPI bus interface and a built-in 32.768 kHz tuning fork crystal oscillator. It operates within a wide supply voltage range of 1.1V to 5.5V, with typical timekeeping current consumption ranging from 0.35µA to 0.4µA at 2V to 5V. The device provides year, month, day, weekday, hours, minutes, and seconds tracking in a compact 5.0 x 3.2 x 1.2 mm 10-SMD Module package. It supports user-programmable frequency offset compensation for improved accuracy and includes features such as alarms, timers, watchdog functions, and low-voltage detection.

Feature Summary

• Integrated SPI Interface: Supports data rates up to 6.25 Mbits/s with open-drain interrupt and programmable CLKOUT pins.
• Ultra-Low Power Consumption: Typical current draw is 130nA at VDD = 3.0V / Tamb = 25°C; timekeeping mode consumes 12nA to 40nA depending on voltage and temperature.
• Wide Operating Voltage: Supply voltage range of 1.1V to 5.5V; interface operating voltage range of 1.6V to 5.5V.
• Compact Package: 10-SMD Module footprint measuring 5.0 x 3.2 x 1.2 mm, RoHS-compliant and lead-free.

Applications

• Communication & Measuring Equipment
• Commercial & Industrial Applications
• Automotive Electronics
• Wireless Communications
• PDA and Palm Pilots

Procurement Notes

Verify the EOL status before procurement, as the datasheet indicates End-of-Life (EOL). Confirm availability through authorized distributors or secondary markets. Check for moisture sensitivity level (MSL=1) requirements during storage and handling. Ensure compatibility with the 10-SMD Module land pattern for PCB design.

Selection Notes

Select this component when an SPI interface is preferred over I2C for RTC functionality. Consider the 1.1V to 5.5V supply range for systems requiring flexible power rails. Verify that the 6.25 Mbits/s SPI speed meets system timing requirements. Account for the 5.0 x 3.2 x 1.2 mm package dimensions in layout constraints.

Part Context

This part belongs to Abracon's AB-RTCMC series of real-time clock modules. It integrates a quartz crystal oscillator directly into the package, eliminating the need for external crystals. The ZIZE suffix likely denotes specific factory calibration or packaging variations within the series.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the EOL status, alternative RTC modules with SPI interfaces and similar package dimensions should be evaluated. Cross-reference pinouts and electrical characteristics carefully when selecting replacements.