{"product_id":"adafruit-spi-non-volatile-fram-breakout-4-mbit-512-kbytes-mb85rs4mt","title":"Adafruit SPI Non-Volatile FRAM Breakout - 4 Mbit \/ 512 KBytes - MB85RS4MT","description":"\u003cp\u003eFRAM, or \u003ca href=\"http:\/\/en.wikipedia.org\/wiki\/Ferroelectric_RAM\" target=\"_blank\"\u003eFerroelectric Ram,\u003c\/a\u003e is the coolest new data storage method that all the fashion magazines are talking about.\u003c\/p\u003e\n\u003cp\u003eOh wait, no that's quilted handbags. But FRAM is pretty damn cool too! It's similar to \u003ca href=\"http:\/\/en.wikipedia.org\/wiki\/Dynamic_random-access_memory\" target=\"_blank\"\u003eDynamic random-access memory,\u003c\/a\u003e only with a ferroelectric layer instead of a dielectric layer. This gives it stable handling (the bytes you write are non-volatile) with dynamic responsiveness (you can write them very fast!)\u003c\/p\u003e\n\u003cp\u003eNow, with this SPI FRAM breakout board you can add some FRAM storage to your next DIY project. FRAM allows for a lower power usage and a faster write performance. It's excellent for low-power or inconsistent-power datalogging or data buffering where you want to stream data fast while also keeping the data when there's no power. Unlike Flash or EEPROM there's no pages to worry about. Each byte can be read\/written 10,000,000,000,000 times so you don't have to worry too much about wear leveling.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis particular FRAM chip has 4 Megabits (512 KBytes) of storage\u003c\/strong\u003e, interfaces using SPI, and can run at up to 40 MHz clock rates. Each byte can be read and written instantaneously (like SRAM) but will keep the memory for 95 years at room temperature.\u003c\/p\u003e\n\u003cp\u003eAdafruit put this handy magnetic marvel onto a breakout board with 3.3V logic level shifting and regulator so that tou can use this chip with either 3V or 5V power and logic. It comes in a breadboard-friendly breakout and bit of standard 0.1\" header.\u003c\/p\u003e\n\u003cp\u003eLooking for something with a little less \u003cem\u003ebyte?\u003c\/em\u003e Check out the \u003ca href=\"\/en-eu\/products\/adafruit-spi-non-volatile-fram-breakout-2-mbit-256-kbytes-mb85rs2mta\" target=\"_blank\"\u003e2 MBit \/ 256 KBytes breakout\u003c\/a\u003e. Additionally, we also have an \u003ca href=\"\/en-eu\/products\/adafruit-i2c-non-volatile-fram-breakout-256kbit-32kbyte\" target=\"_blank\"\u003eI²C FRAM breakout board\u003c\/a\u003e, larger in size but slower (1MHz max I²C clock rate).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-spi-fram-breakout\" target=\"_blank\"\u003eCheck out this FRAM usage guide for schematics, diagrams, datasheets and example code for Arduino and CircuitPython and Python.\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-spi-fram-breakout\" target=\"_blank\"\u003eCheck out this FRAM usage guide for schematics, diagrams, datasheets and example code for Arduino and CircuitPython and Python.\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBit configuration: 524,288 words x 8 bits\u003c\/li\u003e\n\u003cli\u003eSerial Peripheral Interface: SPI (Serial Peripheral Interface)\u003c\/li\u003e\n\u003cli\u003eCorrespondent to SPI mode 0 (0, 0) and mode 3 (1, 1)\u003c\/li\u003e\n\u003cli\u003eOperating frequency: 40MHz Max\u003c\/li\u003e\n\u003cli\u003eHigh endurance: 10^13 times \/ byte - that's 10,000,000,000,000 times!\u003c\/li\u003e\n\u003cli\u003eData retention: 10 years (at +85 °C), 95 years (at +55 °C), or over 200 years (at +35 °C)\u003c\/li\u003e\n\u003cli\u003eLow power consumption: Operating power supply current 2.6mA (Max @ 40 MHz)\u003c\/li\u003e\n\u003cli\u003eOperation ambient temperature range : -40 °C to +85 °C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRevision History:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs of June 9, 2022\u003c\/strong\u003e - This breakout may come with a different regulator than AP2112K due to parts shortages. The regulator can provide at least 100mA.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn-shop.adafruit.com\/product-files\/4719\/4719_MB85RS4MT.pdf\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":32173916586067,"sku":"ADA4719","price":18.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/4719-00.jpg?v=1598023952","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/adafruit-spi-non-volatile-fram-breakout-4-mbit-512-kbytes-mb85rs4mt","provider":"Pimoroni Ltd","version":"1.0","type":"link"}