Row active control circuit of pseudo static ranom access memory

Details Row active control circuit of pseudo static ranom access memory Row active control circuit of pseudo static ranom access memory

2005-03-09

2009-02-03

Zarabian, Amir (Department: 2827)

Static information storage and retrieval

Read/write circuit

Signals

C365S222000, C365S203000

Reexamination Certificate

active

07486574

ABSTRACT:
A row active control circuit of a PSRAM controls a refresh timing when a refresh operation is performed before activation of a row path for embodiment of a page mode, thereby preventing mis-operations. The row active signal generating unit generates a row active signal when an active condition is set by the internal active signal. The internal active signal generating unit generates the internal active signal in response to a refresh start signal. The row active control unit generates a row active standby signal with the row active signal in response to the internal active signal. The external active signal generating unit for generating an external active control signal in response to the row active standby signal.

REFERENCES:
patent: 6744684 (2004-06-01), Arimoto et al.
patent: 6829192 (2004-12-01), Shinozaki et al.

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