{"title":"Adafruit SPI Flash SD Card - XTSD 512 MB","handle":"adafruit-spi-flash-sd-card-xtsd-512-mb","url":"/products/adafruit-spi-flash-sd-card-xtsd-512-mb","description":"The Adafruit SPI Flash SD Card breakout features an XTSD 512 MB chip — an SD card in an SMT package that you can wire up like standard SPI flash but use with existing SD card libraries. It comes pre-formatted as a 512 MB FAT volume and works straight away with the built-in SD library in Arduino or the sdcard module in CircuitPython.\n\nUnlike standard SPI flash, this NAND memory chip handles wear levelling and ECC calculations automatically — just read and write like any SD card without manual block erasing. The breakout includes level shifting for 3V and 5V logic compatibility, a 3.3V regulator, and a pull-up on chip select.\n\nKey Features\n\n\nXTSD 512 MB Chip – SD card in SMT format, pre-formatted FAT (4 Gbit / 512 MByte)\n\nSPI Interface – Compatible with standard SD card libraries (Arduino SD, CircuitPython sdcard)\n\nAutomatic Wear Levelling + ECC – Built-in HW ECC engine and NAND management\n\nUp to 50 MHz Clock – Write speed class 8\n\nLevel Shifting – Works with both 3V and 5V logic\n\n3.3V Regulator – Onboard regulator and CS pull-up\n\nOperating Temperature – −30 to +85 °C\n\nDimensions – 21.4 × 17.7 × 2.9 mm\n\n\nAlso Consider\n\n\nSPI Flash SD Card – XTSD 2 GB – Four times the storage capacity\n\nSPI FLASH Breakout W25Q128 – 128 Mbit / 16 MByte – Traditional SPI flash (no wear levelling)\n\n\nIdeal For\n\nData logging in high-vibration environments (no loose SD card)\nCompact designs requiring soldered storage\nUSB mass storage devices with microcontrollers\nProjects needing SD card compatibility without a card slot\n\n\nPackage Contents\n\n1× SPI Flash SD Card breakout board (XTSD 512 MB)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3464,"title":"Default Title","sku":"AF-4899","price":19.22,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":43,"option1":"Default Title"}]}