Memory protects data storage at power loss

Offering unlimited endurance and safe data storage at power loss, the I2C EERAM is a standalone SRAM with shadow EEPROM back-up on a single chip. It has been developed by Microchip and is designed to implement, non-volatile SRAM (NVSRAM) for applications that need to constantly or instantaneously record, update or monitor data in sectors which include metering, automotive and industrial.

EERAM helps to automatically retain the contents of the SRAM when system power is lost. It offers instant random writes to the array with no write-cycle delay. The I2C EERAM family is available in four and 16kbit densities and in standard 8pin SOIC, TSSOP and PDIPs. There are 3.0V and 5.0V options and options to operate at industrial and automotive temperature ranges, of -40 to +85°C and -40 to +125°C respectively. It is also available as an automotive-grade memory.

The two familiar, reliable memory technologies on a single chip, provide a robust and dependable device, which is claimed to be the lowest cost, non-volatile SRAM.

It does not require an external battery to safely store data during a power-loss event. Instead, a small, external capacitor is used to provide the energy needed to store the contents of the SRAM on to the EEPROM when system power is lost.

The 47L04, 47C04, 47L16 and 47C16 are in volume production.

The EERAM I2C PICtail Kit (AC500100) will be available in January 2017.


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