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USB Device Interface Memory Requirements

USB Device Component Code Size (KBytes) RAM Size (KBytes)
USB Core 2.80 0.11
Mass Storage Class Support 2.27 0.09
HID Class Support 0.44 0
Audio Class Support 0.28 0.01
CDC Class Support 1.05 0.07
LPC17xx HW Driver 1.63 0.08
STM32F10x HW Driver 1.41 0.09

Notes Note

  • All example figures are based on Cortex-M3
  • All values are minimum requirements with minimum data buffers and no application code
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