What are Cypress's storage recommendations for Flash devices?
Cypress always recommends that packaged parts be kept in an environmentally controlled area (<40°C and 90% RH), as indicated on the label adhered to the MBB bag. The devices should also be in proper containers and vacuum sealed, whenever possible. Most Spansion parts have a warranty limited to 12 months. Although product that exceeds that time frame may have limited support, Cypress is dedicated to its customers and will work to assist in any way possible. The "Long Term Storage Of Packaged Semiconductor IC Product" application note may provide additional helpful information: