SEMICONDUCTOR STORAGE APPARATUS

摘要

When the value of an input write data is equal to or greater than the value of existing data in a memory array (100), a semiconductor storage apparatus (10) permits a writing of th input write data into the memory array (100). Specifically, an increment controller (150) reads the existing data from the memory array (100) and compares it with the write data latched in an 8-bit latch register (170). When the value of the write data is equal to or greater than the value of the existing data, the increment controller (150) outputs a write permission signal (WEN1) to a write/read controller (140), thereby executing the writing of the write data, which is latched in the 8-bit latch register (170), into the memory array (100).