Texas Instruments

BQ4852YMC-85

BQ4852YMC-85 Description

The BQ4852YMC-85 is a Real Time Clock (RTC) IC designed by Texas Instruments, featuring a clock/calendar function with a parallel interface. This through-hole mounted component operates within a supply voltage range of 4.5V to 5.5V and is capable of maintaining accurate timekeeping with a maximum current draw of 1mA. The BQ4852YMC-85 supports a 24-hour time format (HH:MM:SS:hh) and includes advanced features such as an alarm, supervisor, and watchdog timer. It is housed in a tube package and is designed for an operating temperature range of 0°C to 70°C. The BQ4852YMC-85 is classified under HTSUS code 8542.39.0001 and has a moisture sensitivity level (MSL) of 1, indicating unlimited exposure to moisture. This IC is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.

BQ4852YMC-85 Features

• Clock/Calendar Functionality: The BQ4852YMC-85 provides a comprehensive clock/calendar solution, maintaining accurate timekeeping in a 24-hour format (HH:MM:SS:hh).
• Alarm, Supervisor, and Watchdog Timer: These features enhance the functionality of the RTC, allowing for scheduled events, system monitoring, and reliability through periodic resets.
• Wide Operating Voltage Range: The IC operates within a supply voltage range of 4.5V to 5.5V, ensuring compatibility with a variety of power supply configurations.
• Low Power Consumption: With a maximum timekeeping current of 1mA, the BQ4852YMC-85 is energy-efficient, making it suitable for battery-powered applications.
• Through Hole Mounting: The through-hole mounting type ensures robust mechanical stability and ease of integration into existing circuit boards.
• Environmental Compliance: The BQ4852YMC-85 is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards.
• Wide Operating Temperature Range: The IC operates reliably within a temperature range of 0°C to 70°C, making it suitable for various environmental conditions.

BQ4852YMC-85 Applications

The BQ4852YMC-85 is ideal for applications requiring accurate timekeeping and enhanced system reliability. Its features make it particularly suitable for:

• Embedded Systems: The combination of timekeeping, alarm, and watchdog functions makes it an excellent choice for embedded systems where precise timing and system monitoring are critical.
• Consumer Electronics: The low power consumption and wide operating voltage range make it suitable for battery-powered devices, ensuring long battery life and reliable operation.
• Industrial Control Systems: The robust through-hole mounting and wide operating temperature range ensure reliable performance in industrial environments.
• Telecommunications: The RTC can be used in telecommunication equipment for logging events and maintaining accurate time records.
• Medical Devices: The BQ4852YMC-85 can be used in medical devices where accurate timekeeping and system reliability are essential for patient monitoring and data logging.

Conclusion of BQ4852YMC-85

The BQ4852YMC-85 from Texas Instruments is a versatile Real Time Clock IC that offers a comprehensive set of features for accurate timekeeping and enhanced system reliability. Its low power consumption, wide operating voltage range, and robust through-hole mounting make it suitable for a variety of applications, from consumer electronics to industrial control systems. The inclusion of an alarm, supervisor, and watchdog timer further enhances its functionality, making it an ideal choice for applications requiring precise timing and system monitoring. Despite being marked as obsolete, the BQ4852YMC-85 remains a reliable and efficient solution for time-sensitive applications.