DRAM bit line precharge voltage generator

Details DRAM bit line precharge voltage generator DRAM bit line precharge voltage generator

2006-08-31

2008-11-18

Dinh, Son (Department: 2824)

Static information storage and retrieval

Read/write circuit

Precharge

C365S189070, C365S189090

Reexamination Certificate

active

07453748

ABSTRACT:
A DRAM bit line precharge voltage generator comprises a first amplifier having a first current source and comparing a first voltage with a precharge voltage to control a first PMOS transistor, a second amplifier having a second current source and comparing a second voltage with the precharge voltage to control a second PMOS transistor, a third amplifier having a third current source and comparing a third voltage with the precharge voltage to control a first NMOS transistor, and a fourth amplifier having a fourth current source and comparing the first voltage with the precharge voltage to control a second NMOS transistor. The precharge voltage feedbacks from an output node connected between the second PMOS transistor and the first NMOS transistor. The DRAM bit line precharge voltage generator with a low-frequency pole provided by the first amplifier, the first PMOS transistor, the fourth amplifier, and the second NMOS transistor exhibits the characteristics of robustness, low standby current and low-output impedance.

REFERENCES:
patent: 5255232 (1993-10-01), Foss et al.
patent: 6265858 (2001-07-01), Park
patent: 6559707 (2003-05-01), Hwang
patent: 6687166 (2004-02-01), Takahashi et al.
patent: 6687639 (2004-02-01), Taniguchi et al.

Affiliated with

Also associated with

Rating

DRAM bit line precharge voltage generator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with DRAM bit line precharge voltage generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DRAM bit line precharge voltage generator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4038042