Micron Technology Incorporated

Other

Round Rock Research, LLC

Larren Gene Weber

John David Porter

William N Thompson

Dean D Gans

Robert S Green

Timothy Mowry Hollis

Aftab A Ahmad

Ronald L Taylor

Simon J Lovett

John R Wilford

J David Porter

Tom Pawlowski

An apparatus is disclosed. The apparatus comprises a driver circuit configured to selectively provide a first supply voltage to an output node in a first operating mode and to selectively provide a second supply voltage to the output node in a second operating mode, based on one or more enable signals.

Apparatuses and methods for power efficient driver circuits

An apparatus comprising is disclosed. The apparatus a driver circuit configured to selectively provide a first supply voltage to an output node in a first operating mode and to selectively provide a second supply voltage to the output node in a second operating mode, based on one or more enable signals.

A logic gate with a differential evaluation stage, precharge circuitry for precharging outputs of the gate, latch circuitry for latching the outputs and an inverter. The gate uses high speed, low threshold voltage devices in the evaluation stage, yet uses higher threshold voltage devices in other portions of the gate (e.g., precharge circuitry). This use of dual threshold voltage devices minimizes power consumption while maximizing speed. During standby mode, the gate is operated in an evaluation mode to substantially mitigate standby current.

High speed, low power CMOS logic gate

A method of finding an unknown value from within a range of values is disclosed that divides the range into weighted subranges and then, beginning with an arbitrary search value within the range, performs a number of simple comparisons to determine the value for each subrange that will result in a match with the target value. This method can also detect those cases where the target value lies outside the range. In one embodiment, the method of finding an unknown value within a range of values is applied to impedance matching. In this embodiment, the output impedance of a pin on an integrated circuit is automatically matched to the impedance of the load connected to it. The output driver has a controllable impedance that can be adjusted within a specific range of impedances to match the external load impedance it is to drive.

Variable resistance circuit

A system and method for manipulating a netlist, at the time that the netlist is being created, to permit measurement of current flow through a net, or combination of nets, of a sub-circuit during a subsequent simulation process, the manipulation of the netlist including identifying nets through which current flow is to be measured, creating 'artificial' nets for the identified nets, substituting the 'artificial' nets for the identified nets in the netlist file, and connecting a power supply between the artificial net and the identified net for which it has been substituted.

Method and system for creating a netlist allowing current measurement through a sub-circuit

A method and device for automatically generating load circuits for a netlist. A computer system having a schematic for a circuit is used to create a netlist. While constructing the netlist, instances are checked for directives. The directives indicate that the instance should be tracked as a load circuit. For the instances having such a directive, their nets are flagged and the hierarchal portion of the circuit attached to the flagged nets is flattened. The resulting flat circuit replaces the instance in the netlist as a load circuit.

Automated load determination for partitioned simulation

The invention includes digital logic devices with extremely skewed trip points and reset circuitry for rapidly propagating signal edges. Embodiments of skewed logic devices in accordance with the present invention include inverters, buffers, NOR gates and NAND gates for rapidly propagating a selected 'fast' edge of an input signal. Additional embodiments include pulse stretchers, memory devices, substrates, computer systems and methods incorporating the skewed logic devices of the present invention. Each embodiment of a skewed logic device of the present invention is configured to propagate either a fast rising edge or fast falling edge of an output signal, i.e., the 'fast' edge, at rates comparable to those of domino logic. An advantage of the skewed logic devices of the present invention over conventional CMOS logic devices is rapid edge propagation. Additionally, virtually all of the input gate loading is devoted to the fast edge being propagated. Additionally, the reset networks, as disclosed herein, are buffered by at least two gates, thus reducing loading seen by the input or the output of the skewed logic device.

Growing community of inventors

Caldwell, ID, United States of America

Larren Gene Weber