An integrated circuit device comprising: programmable logic fabric comprising configuration memory and programmable logic elements controlled by the configuration memory , wherein a first sector of the configuration memory is configured to be programmed with first configuration data; and sector-aligned memory apart from the programmable logic fabric, wherein the sector-aligned memory is associated with a corresponding sector of the programmable logic fabric, and wherein the sector-aligned memory comprises a first sector of the sector-aligned memory configured to cache the first configuration data while the first sector of the configuration memory is programmed with the first configuration data at a first time when the first configuration data is not cached in the sector-aligned memory , wherein: the first sector of the configuration memory is configured to be programmed with the first configuration data at the first time by receiving the first configuration data via a data source external to the integrated circuit device; the first sector of the configuration memory is configured to be programmed with the first configuration data at a second time by receiving the cached first configuration data from the first sector of the sector-aligned memory ; and the first sector of the sector-aligned memory has a capacity greater than or equal to a capacity of the first sector of the configuration memory . programmable logic fabric comprising configuration memory and programmable logic elements controlled by the configuration memory , wherein a first sector of the configuration memory is configured to be programmed with first configuration data; and sector-aligned memory apart from the programmable logic fabric, wherein the sector-aligned memory is associated with a corresponding sector of the programmable logic fabric, and wherein the sector-aligned memory comprises a first sector of the sector-aligned memory configured to cache the first configuration data while the first sector of the configuration memory is programmed with the first configuration data at a first time when the first configuration data is not cached in the sector-aligned memory , wherein: the first sector of the configuration memory is configured to be programmed with the first configuration data at the first time by receiving the first configuration data via a data source external to the integrated circuit device; the first sector of the configuration memory is configured to be programmed with the first configuration data at a second time by receiving the cached first configuration data from the first sector of the sector-aligned memory ; and the first sector of the sector-aligned memory has a capacity greater than or equal to a capacity of the first sector of the configuration memory . the first sector of the configuration memory is configured to be programmed with the first configuration data at the first time by receiving the first configuration data via a data source external to the integrated circuit device; the first sector of the configuration memory is configured to be programmed with the first configuration data at a second time by receiving the cached first configuration data from the first sector of the sector-aligned memory ; and the first sector of the sector-aligned memory has a capacity greater than or equal to a capacity of the first sector of the configuration memory . <EOS>