Freescale Semiconductor,inc.

Umesh Chandra Lohani

Gaurav Goyal

Bipin B Malhan

Rahul Jain

Nitin Dhamija

A method for reducing dynamic power consumption of an integrated circuit design having flip-flops with an EDA tool that initiates clock gating by gating a clock signal received by the flip-flops. A first set of positive-edge triggered flip-flops and a second set of negative-edge triggered flip-flops, and a first set of OR-type clock gating cells and a second set of AND-type clock gating cells are selected from a technology library. The OR-type clock gating cells are connected to clock input terminals of the first set of positive-edge triggered flip-flops and the AND-type clock gating cells to clock terminals of the second set of negative-edge triggered flip-flops.

System for reducing power consumption of integrated circuit

A dual supply bidirectional level shifter performs voltage level shifting in two directions, low to high and high to low. A feedback control branch and a control stage inverter are provided that reduce leakage power and allow for low delay time while also allowing for a small circuit footprint.

Digital voltage level shifter

A single-supply digital voltage level shifter has a first inverter having a first input for receiving an input signal with a first voltage swing, and a first output for outputting a first output signal. A second inverter has a second input for receiving the first output signal, and a second output for outputting a second output signal with a second voltage swing, where the second output signal is a level-shifted version of the input signal. A comparison stage includes a first comparison stage input for receiving the input signal, a second comparison stage input for receiving the second output signal, and a comparison stage output for outputting a comparison stage output control signal. A control stage is connected in a circuit branch of the first inverter and has a control stage switch that assumes a non-conducting state dependent on a logical state of the comparison stage output control signal.

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Noida, India

Umesh Chandra Lohani