フラッシュメモリ
In addition to individual flash memory chips, flash memory is also embedded in microcontroller (MCU) chips and system-on-chip (SoC) devices. Flash memory is embedded in ARM chips, which have sold 150billion units worldwide , and in programmable system-on-chip (PSoC) devices, which have sold 1.1billion units . This adds up to at least 151.1billion MCU and SoC chips with embedded flash memory, in addition to the 45.4billion known individual flash chip sales , totalling at least 196.5billion chips containing flash memory.