Patent ID: 7283399
Filing Date: 2007-10-16
Classification: G11C

Abstract:
1. A semiconductor storage apparatus comprising: a nonvolatile memory having a plurality of word lines, each of which is coupled with memory cells; a controller; and terminals, wherein the controller is capable of receiving a command from outside of the semiconductor storage apparatus via the terminals, and is capable of access controlling to the nonvolatile memory in response to the command, wherein the controller is capable of issuing a program command to the nonvolatile memory accompanied with first write address information and first data for making the nonvolatile memory store the first data to first group memory cells coupled to a first word line, wherein when the controller receives a write command as the command accompanied with first address information and second data having 512 byte length, the controller issues the program command to the nonvolatile memory accompanied with second write address information and the second data; and the nonvolatile memory, in response to the program command accompanied with the second write address information issued from the controller, selects the first word line in accordance with the second write address information and stores the second data to second group memory cells coupled to the first word line, after issuing the program command from the controller for storing the first data to the first group memory cells without issuing an access command from the controller to the nonvolatile memory for erasing data stored in the first group memory cells coupled to the first word line.