STMicroelectronics M48T08-150PC1 Timekeeper SRAM

The STMicroelectronics M48T08-150PC1 is a 64 Kbit (8K x 8) Timekeeper SRAM that integrates a battery-backed non-volatile (NV) SRAM, real-time clock, and power-fail control circuitry. This high-performance, low-power SRAM is designed to maintain data and real-time clock accuracy in the absence of an external power supply, making it an ideal choice for a wide range of applications requiring reliable data and timekeeping, even in the event of a power failure.

This device operates at a voltage range of 4.5V to 5.5V and features a 150ns access time, providing quick and efficient data retrieval. The real-time clock (RTC) functionality of the M48T08-150PC1 offers precision timekeeping with leap year compensation up to the year 2100. It includes a built-in crystal oscillator, which reduces the number of external components required for operation, and an automatic power-fail chip deselect and write protection, ensuring data integrity during power transitions.

The M48T08-150PC1 is housed in a JEDEC standard 28-pin DIP package, which makes it compatible with many existing circuit board layouts. Its integrated battery ensures a minimum of 10 years of data retention and clock functionality without external power, providing long-term reliability for applications such as embedded systems, utility meters, industrial controllers, and other systems that require continuous timekeeping and data storage capabilities.

Key features of the M48T08-150PC1 include:

• 64Kbit (8Kb x 8) NV SRAM with integrated real-time clock
• 4.5V to 5.5V operating voltage range
• 150ns access time for efficient data retrieval
• Battery-backed operation for reliable non-volatility
• Automatic power-fail chip deselect and write protection
• 10 years of data retention and clock functionality
• Leap year compensation valid up to 2100
• JEDEC standard 28-pin DIP package for easy integration

Overall, the M48T08-150PC1 from STMicroelectronics is a robust and reliable solution for systems that require non-volatile memory with an embedded real-time clock, ensuring continuous operation and data preservation even in challenging conditions.