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BUY M48T08-150PC1 https://www.utsource.net/itm/p/652184.html
CMOS 8K x 8 TIMEKEEPER SRAM
Description: The M48T08-150PC1 is an 8K x 8 Timekeeper SRAM from STMicroelectronics. It is a non-volatile memory device that can provide a backup of RAM data and uses a battery backup source to maintain its contents during power failure or interrupted power supply. Features: - Low-power CMOS static RAM - Single supply voltage operation - Continuous operation at 5.0V - Battery backup operation at 2.7-3.6V - Access time: 150ns - 1MHz serial port interface - Data retention period of 20 years - Supports asynchronous reset and self-timed write cycle Applications: - Battery-backed RAM - Automotive electronics - Industrial control systems - Voice/data storage - Embedded systems - Alarm/security systems - Home automation systems (For reference only)