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spi - External RAM (23LC1024) and external Flash (W25Q64JVSSIQ) with Sparkfun SAMD21 - Arduino Stack Exchange
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AT45DB321E Data Nor SPI Flash Memory 32Mbit SOIC-8 pin 3.3V - AT45DB321E -SMD| UGE Electronics Store Egypt
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Adafruit SPI Non-Volatile FRAM Breakout - 64Kbit / 8KByte : ID 1897 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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