New Microchip EERAM memory


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    Prolific Poster normnet's Avatar
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    Default New Microchip EERAM memory

    EERAM is a standalone SRAM memory with shadow EEPROM back-up on a single chip that helps automatically retain contents of the SRAM memory when system power is lost. The EERAM offers instant random writes to the array with no write cycle delay.

    Comprised of two familiar and reliable memory technologies on a single chip, EEPROM and SRAM, EERAM offers a robust and dependable data solution that is also the lowest cost non-volatile SRAM solution. EERAM does not require an external battery to safely store data during a power loss event. Instead, a small, external capacitor is needed to provide the energy needed to store the contents of the SRAM on to the EEPROM when system power is lost.

    EERAM news
    EERAM description
    EERAM datasheet

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    Fanatical Contributor top204's Avatar
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    Default Re: New Microchip EERAM memory

    The trouble is, they are quite small memories. 16Kbit being the largest, which is only 2048 bytes. These days, that is nothing, and even a lot of microcontrollers have a lot more SRAM than that, so their SRAM can be used to read and write a few K bytes quickly in a block, and when they are idle, they can store sequentially to standard eeprom or NAND flash, because some of the new NAND flash peripherals are very fast access for writing. Again, IMO, a pointless peripheral from Microchip, catering for the programmers who aren't actually programmers!

    Or is that now the definition of a Programmer. "I can't do that because I don't know how, and no one else has written a library for it, and I can't be bothered to learn how to do it" ;-) i.e. A typical Arduino user. LOL
    Last edited by top204; 20th January 2017 at 17:15.

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