摘要:
A method and apparatus for reducing power consumption in integrated memory devices is provided. Banks of memory cells may be individually put into “sleep” mode via respective “sleep” transistors.
摘要:
A method is described that comprises modulating the power consumption of an SRAM as a function of its usage at least by reaching, with help of a transistor, a voltage on a node within an operational amplifier's feedback loop. The voltage is beyond another voltage that the operational amplifier would drive the node to be without the help of the transistor. The voltage helps the feedback loop establish a voltage drop across a cell within the SRAM.
摘要:
Reduction of standby leakage current in an internal circuit block using a transistor stack effect. For one embodiment, an apparatus includes a standby leakage reduction circuit to be coupled to the circuit block including a plurality of logic gates. The standby leakage reduction circuit causes a stack effect at each of the plurality of logic gates during a standby mode of the circuit block by turning off two or more series-coupled transistors of a same type (either n-type or p-type) at each of the plurality of logic gates.
摘要:
A domino logic circuit is provided. The circuit includes an n-channel clock transistor coupled between a dynamic output node and a high voltage connection, the gate of the clock transistor further coupled to receive an inverse clock signal. A first inverter has an input connected to the dynamic output node. A second inverter with an input connected to the dynamic output node comprises a static CMOS circuit stage which serves as an output receiver circuit, the output of which is the output of the domino logic circuit. An n-channel level keeper transistor is connected between the dynamic output node and the high voltage connection, and the gate of the level keeper transistor is connected to the output of the first inverter. A pull-down circuit is connected between the dynamic output node and a low-voltage connection. An output predischarge transistor is connected between the output of the static CMOS circuit and the low voltage connection, and is coupled to and controlled by a clock signal at its gate.
摘要:
A domino logic circuit includes input connections to receive a clock signal and at least one input data signal. In one embodiment, the domino logic circuit includes a dynamic stage comprising precharge circuitry, and a static stage that comprises discharge circuitry. In another embodiment, the domino logic circuit includes a dynamic stage comprising discharge circuitry, and a static stage that comprises precharge circuitry. Different configurations and transistor types have also been described. The circuitry can provide improved speed performance, or increase noise immunity.
摘要:
A method and apparatus for reducing leakage current in an integrated circuit includes a supply voltage line, a virtual supply voltage line, a ground voltage line, a virtual ground voltage line, a first logic circuit coupled to the ground voltage line and selectively coupled to the virtual supply voltage line, a second logic circuit coupled to the supply voltage line and selectively coupled to the virtual ground voltage line, and a switch circuit configured to control the selective coupling of the first logic circuit to the virtual supply line voltage and the second logic circuit to the virtual ground voltage line.
摘要:
A stack device is provided to obtain a stack effect. The stack device includes at least first and second active components. The first and second active components have first and second device widths, respectively. The first and second device widths are then selected to provide a desired leakage current and gate delay time for the stack device. The selection includes adjusting the first and second device widths while keeping a sum of the device widths constant.
摘要:
Standby leakage reduction circuitry that uses boosted gate drive of a leakage control transistor during an active mode. A circuit block includes a first leakage control transistor coupled to receive a first supply voltage and coupled in series with an internal circuit block that performs a particular function. A gate drive circuit is included to apply a first boosted gate drive voltage to a gate of the first leakage control transistor during an active mode of the internal circuit block. The gate drive circuit furthers applies a standby gate voltage to the gate during a standby mode of the internal circuit block, the standby gate voltage to cause a gate to source voltage of the leakage control transistor to be reverse-biased.
摘要:
A domino logic circuit is provided. The circuit includes an n-channel clock transistor coupled between a dynamic output node and a high voltage connection, the gate of the clock transistor further coupled to receive an inverse clock signal. A first inverter has an input connected to the dynamic output node. A second inverter with an input connected to the dynamic output node comprises a static CMOS circuit stage which serves as an output receiver circuit, the output of which is the output of the domino logic circuit. An n-channel level keeper transistor is connected between the dynamic output node and the high voltage connection, and the gate of the level keeper transistor is connected to the output of the first inverter. A pull-down circuit is connected between the dynamic output node and a low-voltage connection. An output predischarge transistor is connected between the output of the static CMOS circuit and the low voltage connection, and is coupled to and controlled by a clock signal at its gate.
摘要:
A domino logic circuit includes an n-channel clock transistor coupled between a dynamic output node and a high voltage connection, the gate of the clock transistor further coupled to receive an inverse clock signal. A first inverter has an input connected to the dynamic output node. A second inverter with an input connected to the dynamic output node comprises a static CMOS circuit stage, the output of which is the output of the domino logic circuit. A p-channel level keeper transistor is connected between the dynamic output node and the high voltage connection, and the gate of the level keeper transistor is connected to the output of the first inverter. A pull-down circuit is connected between the dynamic output node and a low-voltage connection. A pull-up circuit is connected between the static CMOS circuit output and the high voltage connection. An output predischarge transistor is connected between the output of the static CMOS circuit and the low voltage connection, and is coupled to and controlled by a clock signal at its gate.