Spansion Inc. was an American-based company that designed, developed, and manufactured flash memory, microcontrollers, mixed-signal and analog products, and system-on-chip (SoC) solutions.

[5] Once AMD took control of the company in 2003, it was renamed Spansion LLC in June 2004[5] and officially spun off as an independent maker of flash memory chips in December 2005.

[6][7] After joining the company in 2009, CEO, John Kispert, brought Spansion out of bankruptcy with over $1 billion in sales and 10,000 customers worldwide.

In October 2007, Spansion announced that it was acquiring Israel-based Saifun Semiconductors Ltd., non-volatile memory provider.

The companies signed an agreement that consolidated all MirrorBit and NROM IP, design and manufacturing expertise within Spansion.

As a result, Spansion expanded its IP portfolio and enabled its immediate entry into the technology licensing business.

[14] Serial flash memory is used in applications such as high-end printers, FPGAs, networking equipment and set-top boxes.

Spansion HyperFlash memory devices provide a migration path—from single Quad SPI to Dual Quad SPI to HyperFlash Memory—allowing system applications to be scaled to different levels of flash performance when paired with compatible controllers, giving OEMs the ability to offer different product models with a single design.

Spansion's FM MCU microcontroller family, which was based on the ARM Cortex-M4, M3, M0+ CPUs comes in packages from 32 to 216 pins, with flash memory densities between 56KB and 2MB.

[18] Spansion also acquired power management ICs aimed at energy harvesting and LED lighting.

[19] The Buck PMIC for solar and vibrations energy harvesting MB39C811regulates output voltage with the quiescent current of 1.5 μA.

Its old common stock was previously deemed to be impaired and then cancelled; the company issued new shares to those to whom it owed money.

[7] With the company in turmoil and needing to reduce expenses,[7] Spansion laid off 3,000 employees without severance pay on February 23, 2009.