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Small green circuit board with surface-mounted chip and gold pins

Adafruit

Adafruit engineering development tool

SKU CH-RZQ9-D4DHC

SPI-interfaced 512 MB storage chip with built-in ECC and wear leveling for vibration-resistant data logging

  • TypePrototyping Products
  • 512 MB storage in a surface-mount package
  • Class 8 write speed for fast data logging
  • Hardware ECC engine protects data integrity
  • Automatic wear levelling extends memory life
  • Vibration-proof design prevents card ejection

Compact storage for vibration-prone logging

This Adafruit SPI Flash SD Card provides 512 MB of storage in a surface-mount package that mimics a standard SPI flash chip. It is designed for engineers and hobbyists building data loggers or embedded devices where a removable card could dislodge. The module arrives pre-formatted with a FAT filesystem and works with existing SD libraries for Arduino and CircuitPython.

Silent operation with managed endurance

The device has no moving parts and draws power only during active SPI transactions, adding negligible thermal load to a compact enclosure. An on-board hardware ECC engine and NAND management layer handle wear levelling and error correction automatically, delivering Class 8 write performance without software overhead. This internal management replaces the manual handling required by raw SPI flash.

Solder-down footprint frees board space

The chip-scale form factor solders directly to a PCB, eliminating the bulk and connector cost of a traditional SD socket. It uses a standard SPI interface, so it integrates with common microcontrollers without specialised drivers. The design suits space-constrained projects that need reliable, non-removable storage but cannot accommodate a card slot or withstand vibration-induced disconnection.

Puntos fuertes

  • 512 MB storage in a surface-mount package
  • Class 8 write speed for fast data logging
  • Hardware ECC engine protects data integrity
  • Automatic wear levelling extends memory life
  • Vibration-proof design prevents card ejection

Especificaciones

TypePrototyping Products

Preguntas sobre este artículo

How do I install the SPI Flash SD Card breakout and what wiring mistake should I avoid?

Wire it like an SD card breakout using SPI lines and use standard SD libraries such as the Arduino SD library or CircuitPython sdcard library. The common mistake is treating it as raw SPI flash instead of an SD card device.

What maintenance or replacement will the XTSD 512 MB card need over time?

The built-in hardware ECC engine and NAND management handle wear leveling and error correction automatically, so no user maintenance is required. The card replaces plain SPI flash that would need manual wear management.

What limit appears first during sustained write operations on this 512 MB card?

Write speed is capped at Class 8, so sustained throughput will hit that ceiling before the 512 MB capacity fills.

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