Siemens Aktiengesellschaft

Siemens Aktiengesell Schaft

Siemens Aktiengelsellschaft

Manfred Paul

Oskar Kowarik

Rainer Kraus

Kurt Hoffmann

Hans-Dieter Oberle

A multi-stage integrated decoder device has a special function which facilitates the simultaneous activation of a plurality and as many as all of its outputs. When it is used as a bit line decoder it is thus possible to activate a plurality and as many as all of the bit lines (including any redundant bit lines) of a block of storage cells of a semiconductor memory.

Multi-stage integrated decoder device

In a circuit configuration and a method for testing storage cells, all of the bit lines lead to one pair of fault lines which is first precharged with mutually-complementary logic levels. All of the storage cells of a word line are always read-out in parallel relative to one another. In the event of 'no fault' the pair of fault lines retains its logic states, whereas in the case of a fault one of the fault lines changes its logic state through switching transistors. This is recognized and analyzed by a comparator circuit in the form of an XOR-circuit or an XNOR-circuit.

Circuit configuration and a method for the testing of storage cells

A method and circuit configuration for the parallel input of data items in the form of a test pattern into a block of a semiconductor memory having a plurality of storage cells. For test purposes, data items are simultaneously input in parallel into the storage cells.

Method and circuit configuration of the parallel input of data into a

A digital amplifier configuration in integrated circuits for the amplification of a voltage change includes a digital amplifier. The digital amplifier couples pairs of bit lines extended beyond the permissible capacity thereof to extensions of the pairs of bit lines.

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Unterfoehring, Germany

Manfred Paul