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Low-Power FRAM Microcontrollers and Their Applications

Authored on: Jun 1, 2011 by Volker Rzehak

Technical Paper

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Texas Instruments recently announced a new microcontroller family that implements FRAM as non-volatile memory instead of Flash, today's most common programmable, non-volatile memory technology. The paper explains the FRAM technology and how embedded applications can benefit from it. The physics behind the FRAM technology are briefly covered. The differences and benefits of FRAM versus other non-volatile memory technologies like Flash are shown like the low current consumption, the fast write, and the high write endurance. The concept of "universal memory" is also introduced. This paper illustrates how embedded applications can benefit from the features the FRAM technology offers such as ultra-low power data loggers and batteryless energy harvesting applications.

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DanielV_arg Posted Sep 11, 2011

FRAM is great news. High endurance, low energy, unification of program and data memory. However I don't see any data about cell memory size, and production costs. Having in mind low energy embedded systems, my question would be: can we expect FRAM memory chips for data logging? (32MB to 128 MB), price?.

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resistion Posted Sep 11, 2011

Destructive read not mentioned either.

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kjdsfkjdshfkdshfvc Posted Sep 28, 2011

Flamebait. The raw FeRAM cells are read destructively, but if you look at it that way, many other technologies are read destructively too. The controller takes it out of the equation for you, since it will replace was was destructively read, you don't even see it that is was destroyed, and as a user of FeRAM technology, you don't even care.

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unknown multiplier Posted Sep 11, 2011

FeRAM retention with PZT is not great. 20 hrs 125 C.

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