SEMICONDUCTOR STORAGE DEVICE

PROBLEM TO BE SOLVED: To provide a semiconductor storage device which can monitor internal signals in the mold state. SOLUTION: A test signal generator circuit 40 generates test signals. In response to a test signal, a monitor circuit 20 realizes a condition in which a node N1 through which a sense...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: ICHIGUCHI TETSUICHIRO
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a semiconductor storage device which can monitor internal signals in the mold state. SOLUTION: A test signal generator circuit 40 generates test signals. In response to a test signal, a monitor circuit 20 realizes a condition in which a node N1 through which a sense amplifier activating signal So passes, a node N2 through which a column decoder activating signal CDE passes, or a node N3 through which the output control signal OEM passes is connected with the /WE pin. On the other hand, an output control circuit 55 receives the write enable signal /WE at the H level from a control circuit 30 at the time of the test mode of an internal signal monitor. By this, it is possible to monitor internal signals about the access path from the /WE pin.