Semiconductor memory input/output device

Details Semiconductor memory input/output device Semiconductor memory input/output device

2011-08-30

2011-08-30

Le, Vu A (Department: 2824)

Static information storage and retrieval

Addressing

Particular decoder or driver circuit

C365S230080

Reexamination Certificate

active

08009504

ABSTRACT:
A semiconductor memory input/output device includes selection pads used to input and output signals for multiple operation modes and having multiple functions, a control signal generator for outputting setting signals and a mask control signal, a lower input/output unit including a lower output buffer for outputting a read data strobe signal to a selection pad and a lower input buffer for receiving a lower data mask signal from the selection pad, and selecting one operation of the lower output buffer and the lower input buffer, and an upper input/output unit including an upper output buffer for outputting an inverted read data strobe signal to the second selection pad and an upper input buffer for receiving an upper data mask signal from the second selection pad, and selecting one operation of the upper output buffer and the upper input buffer.

REFERENCES:
patent: 6246626 (2001-06-01), Roohparvar
patent: 2002/0012285 (2002-01-01), Noda et al.
patent: 2008/0192558 (2008-08-01), Yoshida et al.
patent: 1020050058872 (2005-06-01), None
patent: 1020060002479 (2006-01-01), None
Notice of Allowance issued from Korean Intellectual Property Office on Mar. 30, 2011.

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