{"title":"Adafruit SPI Non-Volatile FRAM Breakout - 2 Mbit / 256 KBytes - MB85RS2MTA","handle":"adafruit-spi-non-volatile-fram-breakout-2-mbit-256-kbytes-mb85rs2mta","url":"/products/adafruit-spi-non-volatile-fram-breakout-2-mbit-256-kbytes-mb85rs2mta","description":"The Adafruit SPI Non-Volatile FRAM Breakout provides 2 Mbit (256 KBytes) of ferroelectric RAM (FRAM) storage over SPI. FRAM combines the non-volatile retention of flash with the instant read/write speed of SRAM — no page writes, no block erasing, and each byte can be written 10 trillion times without wear concerns.\n\nThe MB85RS2MTA chip runs at up to 40 MHz SPI clock speeds and retains data for 95 years at room temperature. The breakout includes 3.3V level shifting and a regulator, so it works with both 3V and 5V logic. Ideal for fast, low-power data logging where you need reliable storage even when power is inconsistent.\n\nKey Features\n\n\nMB85RS2MTA FRAM Chip – 2 Mbit (256 KBytes) non-volatile ferroelectric RAM\n\nSPI Interface – Up to 40 MHz clock speed\n\nInstant Read/Write – No page writes or block erasing required\n\n10 Trillion Write Cycles – Virtually unlimited endurance per byte\n\n95-Year Data Retention – At room temperature\n\nLevel Shifting + Regulator – Compatible with 3V and 5V logic\n\nBreadboard-Friendly – Includes 0.1\" header\n\n\nIdeal For\n\nHigh-speed data logging and buffering\nLow-power or inconsistent-power applications\nFrequent read/write scenarios where EEPROM wear is a concern\nNon-volatile storage that needs SRAM-like speed\n\n\nPackage Contents\n\n1× SPI FRAM breakout board (MB85RS2MTA, 2 Mbit)\n1× Header strip\n\n\nResources\n\n\nAdafruit SPI FRAM Breakout Guide – Schematics, datasheets, and example code for Arduino and CircuitPython\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3870,"title":"Default Title","sku":"AF-4718","price":25.26,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":2,"option1":"Default Title"}]}