Semiconductor device with initialization operation and boot-up operation

A semiconductor device, comprising:

• first and second memory regions;
• a first block, which is formed corresponding to the first memory region, and which is initialized in response to an initialization signal during an initialization mode;
• and
• a second block, which is formed corresponding to the second memory region, and which is subsequently initialized in response to a boot-up mode signal and a first region selection signal for selecting the first memory region during a boot-up mode, wherein an initialization operation of the second block is performed while a boot-up operation is performed on the first block,
• wherein the first and second memory regions and the first and second latch blocks are formed in a core region and the fuse block are from a peripheral region.

A method for driving a semiconductor device, comprising:

• initializing a first latch block;
• subsequently initializing a second latch block while the first latch block performs a boot-up operation;
• and
• performing the boot-up operation of the second latch block,
• wherein an initialization operation of the second latch block and the boot-up operation of the first latch block are performed at the same time, and
• wherein the boot-up operation of the second latch block is performed in response to a first bank selection signal.