CBC92141C-Q3-TR3

Overview

The CBC92141C-Q3-TR3 is a real-time clock (RTC) integrated circuit manufactured by Cymbet Corporation. It provides clock/calendar functionality via an I2C interface, supporting both 12-hour and 24-hour time formats alongside YY-MM-DD-dd date formatting. The device features 64 bytes of RAM for data storage and includes alarm capabilities with leap year compensation. It operates on a supply voltage range of 2.5V to 5.5V, with a battery supply limit of 4.1V. Timekeeping current consumption is specified at a maximum of 0.06µA across the operating voltage range. The component is housed in a 16-UFQFN exposed pad package (16-MLPQ, 3x3 mm) and is rated for industrial temperatures from -40°C to 85°C.

Feature Summary

• I2C serial interface for clock and calendar data access
• 64-byte RAM storage capacity with alarm and leap year support
• Ultra-low timekeeping current: 0.06µA max @ 2.5V–5.5V
• Integrated backup supply charger capability

Applications

• Industrial systems requiring precise timekeeping in harsh environments
• Portable electronics utilizing low-power RTC functions
• Data logging devices needing non-volatile time stamping

Procurement Notes

Verify the specific ordering suffix TR3 corresponds to the Tape & Reel packaging configuration as indicated in the product parameters. Confirm that the 16-MLPQ (3x3) package dimensions align with the target PCB footprint design. Ensure the system power supply remains within the 2.5V to 5.5V range to maintain specified electrical characteristics.

Selection Notes

Select this component when an I2C-compatible RTC with moderate RAM storage (64B) is required. The wide operating temperature range (-40°C to 85°C) makes it suitable for industrial applications. Consider the 0.06µA timekeeping current for battery-backed designs. Verify compatibility with the host controller's I2C voltage levels and bus speed requirements.

Part Context

This part belongs to the Real Time Clocks category within Cymbet Corporation's portfolio. It is distinct from general-purpose memory or standard oscillators by integrating dedicated clock/calendar logic, alarm comparators, and backup management features into a single surface-mount IC.

Replacement Considerations

Direct replacements must match the 16-UFQFN (3x3mm) package and I2C interface. Verify pinout compatibility if substituting with other RTC ICs. Check if alternative parts support the same 64-byte RAM size and similar timekeeping current specifications.