STMicroelectronics

M41T66Q6F

M41T66Q6F Description

The M41T66Q6F is a Real Time Clock (RTC) integrated circuit (IC) developed by STMicroelectronics. It belongs to the Timekeeper® series and is designed for applications requiring accurate timekeeping and calendar functions. The device is a surface-mount component, specifically available in a 16-pin Quad Flat No-Lead (QFN) package. It operates within a supply voltage range of 1.5V to 4.4V and has a maximum timekeeping current consumption of 0.9µA to 1.1µA at the specified voltage range. The M41T66Q6F is classified as EAR99 under the Export Administration Regulations (EAR) and is REACH unaffected, indicating that it does not contain any substances of very high concern (SVHC) as per the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation.

M41T66Q6F Features

• Alarm, Leap Year, Square Wave Output, Watchdog Timer: The M41T66Q6F offers advanced features such as an alarm function, leap year support, a square wave output, and a watchdog timer, enhancing its versatility in various applications.
• Time Format: It supports a 24-hour time format (HH:MM:SS:hh), making it suitable for a wide range of timekeeping applications.
• Voltage - Supply: The device operates over a wide voltage range of 1.5V to 4.4V, providing flexibility in power supply design.
• Current - Timekeeping (Max): With a low power consumption of 0.9µA to 1.1µA at 1.5V to 4.4V, the M41T66Q6F is energy-efficient, ideal for battery-powered applications.
• Package: The 16-pin QFN package is compact and suitable for space-constrained designs.
• RoHS Status: The M41T66Q6F is ROHS3 Compliant, adhering to the Restriction of Hazardous Substances Directive, making it suitable for environmentally conscious designs.

M41T66Q6F Applications

The M41T66Q6F is ideal for applications that require precise timekeeping and calendar functions, such as:

• Automotive Infotainment Systems: For managing and displaying real-time information.
• Industrial Control Systems: To ensure accurate timing and scheduling of processes.
• Smart Home Devices: For managing and synchronizing various smart home appliances.
• Portable Electronics: In devices like digital cameras, GPS units, and mobile phones where accurate timekeeping is crucial.

Conclusion of M41T66Q6F

The M41T66Q6F, despite being classified as obsolete, offers a robust set of features for applications that require precise timekeeping and calendar functions. Its low power consumption, wide voltage range, and advanced features make it a suitable choice for a variety of applications, particularly those that are sensitive to power consumption and require a compact form factor. While it may not be the latest model on the market, its unique combination of features and advantages can still provide value in specific use cases where a reliable and feature-rich RTC IC is required.