Power-up signal generator for use in semiconductor device

Details Power-up signal generator for use in semiconductor device Power-up signal generator for use in semiconductor device

2011-06-21

2011-06-21

Le, Vu A (Department: 2824)

Static information storage and retrieval

Powering

C365S227000, C365S189090, C365S189020

Reexamination Certificate

active

07965573

ABSTRACT:
In an apparatus for generating a power-up signal, a mode register set (MRS) and other circuits are prevented from being reset, thereby providing stable circuit operation. A final power-up signal is not disabled even though an internal voltage generating unit is turned off at a test mode. The apparatus includes a power-up signal generator for producing a power-up signal; a multiplexing unit for selectively outputting the power-up signal or a static voltage signal in a test mode; and a power-up signal generator for producing a final power-up signal in response to the power-up signal of the power-up signal generator and an output signal of the multiplexing unit as the final power-up signal.

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