Semiconductor device having a data latching or storing function

Details Semiconductor device having a data latching or storing function Semiconductor device having a data latching or storing function

2005-10-25

2005-10-25

Phan, Trong (Department: 2827)

Static information storage and retrieval

Addressing

Multiple port access

C365S230060, C365S189050

Reexamination Certificate

active

06958948

ABSTRACT:
The current consumed by latching data and during standby are significantly decreased in order to realize reduced power consumption. In this memory cell, source voltages VRETand VDDare supplied to latch circuit10and output circuit32from different systems. Latch circuit10can be separated from a peripheral circuit by NMOS transistor20and transmission gate24.MOS transistors12, 14, 16,and18,which constitute latch circuit10and MOS transistors20, 26,and28,which constitute the switch circuit, are configured using low-leakage MOS transistors with leakage current significantly lower than those of standard MOS transistors used to configure the peripheral circuit including output circuit32.

REFERENCES:
patent: 5260908 (1993-11-01), Ueno
patent: 5375089 (1994-12-01), Lo
patent: 5473574 (1995-12-01), Clemen et al.
patent: 5477489 (1995-12-01), Wiedmann
patent: 5717638 (1998-02-01), Kim
patent: 5828610 (1998-10-01), Rogers et al.
patent: 6288969 (2001-09-01), Gibbins et al.
patent: 6741517 (2004-05-01), Fisher et al.

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