X24C44S Datasheet

Serial Nonvolatile Static RAM


The Xicor X24C44 is a serial 256 bit NOVRAM featuring a static RAM configured 16 x 16, overlaid bit-by-bit with a nonvolatile EEPROM array. The X24C44 is fabricated with Xicor’s Advanced CMOS Floating Gate technology.The Xicor NOVRAM design allows data to be transferred between the two memory arrays by means of software commands or external hardware inputs. A STORE operation (RAM data to EEPROM) is completed in 5ms or less and a RECALL operation(EEPROM data to RAM) is completed in 2μs or less. X24C44S Features • Advanced CMOS version of Xicors X2444• 16 x 16 organization• Single 5V supply• Ideal for use with single chip microcomputers —Static timing —Minimum I/O interface —Serial port compatible (COPS™, 8051) —Easily interfaced to microcontroller ports• Software and hardware control of nonvolatile functions• Auto RECALL on power-up• TTL and CMOS compatible• Low power dissipation —Active current: 10mA maximum —Standby current: 50μA maximum• 8-lead PDIP, Cerdip, and 8-lead SOIC packages• High reliability —STORE cycles: 1,000,000 —Data retention: 100 years


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Manufacturer information


Diodes Incorporated is a leading global manufacturer and supplier of high-quality, application-specific, standard products within the broad discrete, logic and analog semiconductor markets. Diodes Incorporated primarily serves the computing, consumer, communications, industrial and automotive segments. Diodes’ diverse product portfolio includes parts for LCD/LED TVs and displays, desktop, notebook and tablet computing, smartphones and hand-held devices, set-top boxes, power supplies and USB protection as well as many other application areas.

Diodes Incorporated offers a wide array of products including diodes, rectifiers, transistors, MOSFETs, gate drivers, protection devices, function-specific arrays, amplifiers and comparators, Hall-effect sensors and temperature sensors, power management devices including LED drivers, AC-DC converters and controllers, DC-DC switching regulators, linear voltage regulators, current monitors, and voltage reference and shunt regulators, along with special function devices including USB power switches, load switch devices, voltage supervisors and motor controllers.

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