The MK48Z52B20 is a highly integrated battery-backed SRAM with real-time clock from STMicroelectronics, designed to provide a reliable non-volatile memory solution with timekeeping capabilities. This product is particularly suitable for applications that require data and time retention without external power, such as industrial control systems, metering devices, and other embedded systems.

Key Features

• Memory Capacity: The MK48Z52B20 offers a 16K x 8-bit structure, providing a total of 128K bits of low-power CMOS static RAM.
• Real-Time Clock (RTC): Integrated RTC provides hour, minute, second, day, date, month, and year information. The RTC functionality includes leap year compensation valid up to 2100.
• Automatic Battery Switching: The device includes a built-in battery input and control circuitry, which ensures seamless transition to battery power when external power is lost, preserving data and time information.
• Low Power Consumption: Designed for energy efficiency, the MK48Z52B20 has a low power standby mode, making it ideal for battery-powered applications.
• Write Protect: A write-protect feature prevents inadvertent writes to the memory or clock registers during power transitions.
• Package: The SRAM is available in a 28-pin, 600-mil DIP CAPHAT™ package, which includes a built-in quartz crystal and battery, ensuring a compact design footprint.

Applications

The versatility of the MK48Z52B20 allows it to be used across a wide range of applications where data integrity and accurate timekeeping are critical, including:

• Industrial control systems
• Utility metering
• POS terminals
• Medical devices
• Security systems

Quality and Reliability

STMicroelectronics is renowned for their commitment to quality and reliability, and the MK48Z52B20 is no exception. It is designed to meet the stringent requirements of industrial applications and is manufactured to the highest standards to ensure consistent performance and durability.

For detailed technical specifications, application notes, and support documentation, customers are encouraged to visit the official STMicroelectronics website or contact their local sales representative.