COMPONENTS

There are typically five parts to a flash drive: (1) Standard-A USB plug – provides a physical interface to the host computer. (2) USB mass-storage controller – a small micro-controller with a small amount of on-chip ROM and

RAM (3) NAND flash memory chip(s) – stores data (NAND flash is typically also used in digital cameras) (4) Crystal oscillator – produces the device’s main 12 MHz clock signal and controls the device’s data

output through a phase-locked loop (5) Cover – typically made of plastic or metal, protecting the electronics against mechanical stress and

even possible short circuits