Register information read out device e.g. for semiconductor chip identification

摘要

The read out device provides parallel read out of the register information held in a semiconductor chip using 2 or more input/output paths (I/O1,I/O2,...I/On), respectively associated with memory banks of the semiconductor chip via an input/output gating stage (2). The information is read out from the register, in which it is stored in the form of a number of fuses, via a multiplexer (4) operated in a test mode and line and column decoders (3,5) and entered in the memory banks via the input/output gating stage.