Abstract:
A system and a method to improve signal synchronization in a plurality of signal paths traversing multiple voltage domains. According to an embodiment of the present disclosure a memory arrangement is preferred for signal synchronization. All read/write and clocks signals and other control signals are driven to periphery supply (Vp) levels, except wordline (WL[i]) signals which are driven at core supply (Vc) level. By doing so, lower average and peak current consumption associated with core supply (Vc) is achieved with constant delays and maintaining required signal synchronization in the signal paths traversing multiple voltage domains.
Abstract:
A base cell for an Engineering Change Order (ECO) implementation having at least a first pair of CMOS transistors and a second pair of CMOS transistors, characterized in that said at least first pair of CMOS transistors have a common gate and said at least second pair of CMOS transistors have separate gates.
Abstract:
A device and a method for a sense circuit have been disclosed. In an implementation, the sense circuit includes a sense amplifier and at least one decoupling device. The decoupling device is coupled to the sense amplifier through at least one reference line. The sense amplifier reads a data value and the decoupling device decouples the sense amplifier from a power supply during a read operation.
Abstract:
The present invention discloses a high voltage switching module having reduced stress at its driver output stage which in turn controls the gate of a transistor requiring a high current drive. The switching module includes a negative elevating circuit, a delay module, a pull-up circuit, and a pull down circuit. The negative elevating circuit senses a transition of a logic input signal to generate a control signal. The first pull-up circuit is operatively coupled to this control signal for switching the driver output from a negative voltage to a ground voltage. There is an additional delay module which is configured to provide a delay in the logic input signal. This delayed logic input signal is operatively coupled to the second pull-up stage which takes the output of the driver from GND to VDD. The pull-down circuit is operatively coupled to the negative elevator for controlling a voltage at the driver output to the negative level. The module further comprises a switching circuit that is operatively coupled to the driver output for controlling the passing of a high voltage with high current requirements.
Abstract:
The present disclosure relates to a system comprising memory device with a power switch where the system comprises a first voltage controlled switch coupling positive power supply to positive supply terminal of memory device core; a second voltage controlled switch coupling negative power supply to negative supply terminal of the memory device core; a first reference voltage coupled to the substrate terminal of said first voltage controlled switch; and a second reference voltage coupled to the substrate terminal of said second voltage controlled switch. This helps maintain a sufficient RNM for efficient performance by the system.
Abstract:
Embodiments of the present invention disclose operational amplifiers which demonstrate good settling behavior with minimum over-shoot or ringing for improving settling behavior. The amplifiers include one or more amplification stages connected to form a symmetric structure. The amplification stage includes a boosting amplifier, a MOS transistor and a compensation capacitor. The MOS transistor can be an NMOS transistor and a PMOS transistor. Using this scheme pole-zero doublets are rearranged in a manner to improve the transient settling response.
Abstract:
A routing system is improved by performing three steps sequentially to complete an execution process. The first step estimates a normalized criticality score for each design net. The second step arranges the scores for each design net in descending order. Third step rips up and reroutes the design so as to make it more feasible.
Abstract:
A CMOS Output Buffer providing controlled output impedance includes three internal sections each of which provides a impedance control for a corresponding region of the output V-I characteristics of deep linear, deep saturation and transition regions. Each internal section includes controlled current sinks/current sources enabled to provide a precise control over the DC impedance of the driver across the PAD voltage range.
Abstract:
An area efficient data shifter/rotator using a barrel shifter. The invention is a circuit, which uses a single barrel shifter and is controllable to implement either a left or right shift or rotation of bits of a digital data word. The circuit is dynamically controllable to implement left or right shift of bits of the digital data word (both logical and arithmetic) and rotation (to the left or right) of bits of the word. The proposed circuit produces the required output in a single cycle.
Abstract:
A phase locked loop (PLL) architecture provides voltage controlled oscillator (VCO) gain compensation across process and temperature. A simulator may be used to calculate the control voltages for the maximum and minimum output frequency of the VCO for each combination of the process and temperature corners. The maximum and minimum values of control voltage are then selected from these control voltages. Using a counter, the number of cycles of VCO in some cycles of the PLL input clock are counted in binary form and stored in latches for the extreme control voltages. The difference between them and the corresponding difference for typical process and temperature corner is used to modify the charge pump to change the current delivered to the loop filter. After the charge pump bits have been decided, the input control voltage of the VCO connects to the charge pump output to start the normal operation of the PLL.