Sense amplifier for programmable logic device having selectable

Details Sense amplifier for programmable logic device having selectable Sense amplifier for programmable logic device having selectable

1996-07-08

1997-05-20

Wambach, Margaret Rose

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 52, 327 54, 36518907, 365205, H03F 345

Patent

active

056315830

ABSTRACT:
A reconfigurable sense amplifier in accordance with the present invention operates in either a high switching speed mode, where power consumption is a less critical consideration, or in a low power consumption mode, where switching speed is a less critical consideration. In a high speed mode, the present invention provides an additional pull-up to an amplified bitline which in combination with an existing weak pull-up still permits the signal on the amplified bitline to be affected by a change in voltage on the bitline. In a low power mode, the present invention provides a temporary pull-up on the amplified bitline if a signal on a wordline is transitioning from high to low (i.e. indicating that a low-to-high signal transition may occur on the bitline). In this manner, the present invention anticipates that when such a transition occurs, the voltage on the amplified bitline may also increase. Thus, the present invention accelerates the low-to-high signal transition on the amplified bitline in the low power mode. If the signal on the wordline is either a constant high or low, then the additional pull-up is disabled, thereby conserving power during the low power mode. In a further aspect of the invention, a sense amplifier is provided for a cross-point interconnect matrix which avoids coupling noise by isolating the bitline from the access transistors using an EPROM cell.

REFERENCES:
patent: 5402371 (1995-03-01), Ono
patent: 5530384 (1996-06-01), Lee et al.
"The Programmable Logic Data Book" copyright 1994, Xilinx, Inc., 2100 Logic Drive, San Jose, CA 95124, pp. 3-5 to 3-8.

Affiliated with

Also associated with

Rating

Sense amplifier for programmable logic device having selectable does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sense amplifier for programmable logic device having selectable , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sense amplifier for programmable logic device having selectable will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1726560