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7622954 |
Level shifter with memory interfacing two supply domains
A level-shifter circuit configured to transfer data between two voltage supply domains may eliminate crowbar current while simultaneously providing a valid output signal. The level-shifter circuit...
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7619444 |
Circuit technique to prevent device overstress
Techniques and circuits for ensuring one or more circuit components are not subjected to voltage levels above their rated voltage tolerance due to core logic and I/O logic supply voltages reaching...
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7609097 |
Driver circuit and a method for matching the output impedance of a driver circuit with a load impedance
A line driver circuit with an output impedance that is set to a value which is based at least in part on the impedance of one or more current sources of the driver circuit. The current source...
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7605609 |
Programmable level shifter
In one embodiment of the invention, a programmable level shifter can be selectively configured to operate in either a high-speed mode or a low-power mode. In both modes, the level shifter converts...
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7592850 |
Level shifter including boosting circuit
A level shifter includes a level shifting circuit shifting a level of a boosted signal input through an input terminal connected to the level shifter and outputting the boosted signal at a new...
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7592849 |
Level shifter for semiconductor memory device implemented with low-voltage transistors
A level shifter is proposed. The level shifter includes a stage having a first branch and a second branch, each branch including: a selection terminal for receiving a selection signal, the...
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7590962 |
Design method and architecture for power gate switch placement
A design method places power gates or switch cells using unoccupied locations of logic cell rows. Two types of such switch cells, filler switches and sealer switches, may be provided using the...
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7589584 |
Programmable voltage regulator with dynamic recovery circuits
Voltage regulator circuitry is provided. The voltage regulator circuitry is suitable for powering core logic on a programmable logic device. The voltage regulator circuitry receives an external...
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7589561 |
Tolerant CMOS receiver
A system includes a complementary metal oxide semiconductor (CMOS) receiver, a first transistor, and a tracking circuit. The tracking circuit receives an input voltage and a reference voltage and...
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7589560 |
Apparatus for configuring I/O signal levels of interfacing logic circuits
Apparatus for configuring input/output signal levels of interfacing logic circuits operating at different voltage levels comprises: a logic circuit for operating at a first voltage level; a bank of...
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7586478 |
Semiconductor device
There is provided a semiconductor device in which fabrication steps can be reduced by constructing a circuit using only TFTs of one conductivity type and in which a voltage amplitude of an output...
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7586358 |
Level shifter and driving method
A level shifter includes; a level conversion unit which receives a first input signal and a second input signal, wherein the second input signal is an inversion of the first input signal, and...
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7586343 |
Output drive circuit that accommodates variable supply voltages
In accordance with the invention, a driver circuit is described that permits a single thin gate oxide process to be utilized where a dual oxide process may normally be necessary. Circuits employing...
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7583105 |
Pull-up circuit
A pull-up circuit comprises an operational amplifier which forms part of a feedback circuit, acting to bring a pull-up circuit output equal to a reference voltage input. The pull-up circuit may...
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7576566 |
Level-conversion circuit
An independent control signal is transmitted to each of a driver control unit and an output transistor, so as to prevent the driver control unit and the output transistor from being made to operate...
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7573314 |
Level shift circuit
The present invention provides a level shift circuit that can reliably cut off the path of a through current regardless of the state of supply of power to plural circuit sections that operate by...
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7570088 |
Input/output buffer for wide supply voltage range
Embodiments for providing a plurality of bias voltages to input/output circuitry are disclosed.
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7567112 |
Voltage level shifter and method thereof
A voltage level shifter converts an input signal into an output signal. While the input signal is high to the output signal is high either. Moreover, while the input signal is low the output signal...
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7567111 |
Potential fixing circuit for integrated circuit having multiple supply potentials
A semiconductor integrated circuit operates at two or more supply potentials including a first supply potential and a second supply potential that is higher than the first supply potential, and...
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7564290 |
Design structure for a high-speed level shifter
Disclosed are embodiments of a design structure for a voltage level shifter circuit that operates without forward biasing junction diodes, regardless of the sequence in which different power...
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7564288 |
Semiconductor integrated circuit
A semiconductor integrated circuit that operates upon supply of a plurality of power potentials including a first power potential and a second power potential higher than the first power potential,...
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7564265 |
Semiconductor device with its test time reduced and a test method therefor
In a semiconductor device, when a voltage regulator is halted from operating and a test supply voltage is supplied to second logics, the device is initialized by a reset signal. A register included...
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7564263 |
High-speed logic signal level shifter
A high speed logic signal level shifter is comprised of: a logic signal buffer for receiving logic signal information and having true and complement state differential outputs; a binary flip-flop...
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7560972 |
Methods and apparatus to reduce propagation delay of circuits
Methods and apparatus to reduce propagation delay of circuits are disclosed. A disclosed apparatus to reduce propagation delay of a circuit comprises a level shifter to selectively turn a first...
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7560971 |
Level shift circuit with power sequence control
A level shift circuit for providing predictable outputs when VDDH is powering up and minimizing DC current when VDDL is powering up. The level shift circuit may have a control circuit that includes...
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7560970 |
Level shifter
A level converter comprises first and second latches, and first through fourth transistors. The first latch has first and second power supply terminals, and first and second nodes. The second latch...
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7557634 |
Low-power consumption high-voltage CMOS driving circuit
The low power consumption CMOS high voltage driving circuit relates to a kind of high voltage driving circuit for output driving, and there is an out buffer stage between the output end of the...
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7554379 |
High-speed, low-power level shifter for mixed signal-level environments
A level shifter is presented that allows fast switching while requiring low power. In accordance with some embodiments of the invention, the level shifter is a two stage level shifting circuit with...
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7554361 |
Level shifter and method thereof
A level shifter and method thereof. The level shifter may include a protective circuit configured to receive an input signal having an input voltage level, the input signal received on an input...
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7554360 |
High speed level shifter circuit in advanced CMOS technology
A level shifter circuit for shifting from a first voltage level technology (such as 0.9 volt) to a second level voltage technology (such as 3.3 volt) with increased switching speed. The increased...
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7548108 |
Semiconductor integrated circuit device with dual insulation system
A semiconductor integrated circuit device may include a first internal circuit operating at a first voltage higher than a power supply voltage of the device, and a second internal circuit operating...
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7548093 |
Scheme of level shifter cell
A system having voltage level shifting capabilities, the system includes a logic circuit and a multiple level voltage supply circuit; wherein the logic circuit comprises at least one PMOS...
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7545357 |
Display device having an improved voltage level converter circuit
A display device has a driver including a level converter formed of polysilicon MISTFTs. The level converter includes first, second and third N-channel MISTFTs (NMISTFTS) and first, second and...
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7545177 |
Method and apparatus for leakage current reduction
Leakage current reduction from a logic block is implemented via power gating transistors that exhibit increased gate oxide thickness as compared to the thin-oxide devices of the power gated logic...
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7545174 |
Level shift circuit and display device having the same
A liquid crystal display (“LCD”) includes a first voltage shift circuit at a front stage of an inverter circuit. The first voltage shift circuit includes a second transistor having a source...
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7545171 |
Input/output device with fixed value during sleep mode or at a time of supplying initial voltage to system
An input/output device includes: a level shifter configured to convert an input signal of a first voltage into an output signal of a second voltage; and an output driver configured to operate in...
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7535256 |
Cross-level digital signal transmission device
A cross-level digital signal transmission device between two systems for cross-level digital signal transmission. Bi-directional symmetrical transmission is achieved without using additional...
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7532033 |
Source driver and level shifting apparatus thereof
The present invention discloses a source driver and a level shifting apparatus thereof. The level shifting apparatus is used for shifting a level of a data signal. The level shifting apparatus...
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7528628 |
Voltage converter with auto-isolation function
The disclosure relates to a voltage converter, converting a first signal of a first voltage to output a second signal of a second voltage. A level shifter receives the first signal to generate the...
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7525371 |
Multi-threshold CMOS system and methods for controlling respective blocks
A multi-threshold CMOS system and method controls a state of respective blocks individually. Each block includes a logic circuit having a logic transistor and a control transistor connected between...
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7521964 |
High-speed level-shifting circuit
In level-shifting circuitry for shifting low-voltage-domain signals to a high-voltage domain, one of two output transistors is driven with one of the low-voltage-domain signals, thereby reducing...
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7521963 |
System and method for providing a low standby power interface for a low voltage I2C compatible bus
A system and method for providing a low standby power interface for a low voltage I2C compatible bus is disclosed. A level shifter circuit is provided that comprises a first input connected to the...
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7519334 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Multi-mode I/O circuitry supporting low interference signaling schemes for high speed digital interfaces
A multi-mode I/O circuit or cell ( 10 ) is provided for transmitting and receiving data between ICs, where each IC contains at least one of the I/O circuits. Each data link includes transmitter...
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7515669 |
Dynamic input setup/hold time improvement architecture
A new method to sample a digital input signal is achieved. The method comprises sampling a digital input processed through a first digital buffer. The sampling is at the rising edge of a system...
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7514961 |
Logic circuits
A logic circuit includes a logic unit, a driving unit, and a voltage level adjuster. The logic unit includes an output node having a logic state, the logic unit being coupled to a first voltage...
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7514960 |
Level shifter circuit
A level shifter circuit has first to fourth transistors and a resistive element. The first transistor is activated in response to a logic signal whose high level voltage is a first voltage. The...
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7514953 |
Adjustable transistor body bias generation circuitry with latch-up prevention
An integrated circuit is provided with body bias generation circuitry. The body bias generation circuitry generates a body bias signal that is provided to transistors on a body bias path. The body...
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7511556 |
Multi-function circuit module having voltage level shifting function and data latching function
The present invention discloses a multi-function circuit module having voltage level shifting function and data latching function via switching a plurality of switch elements. The multi-function...
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7511555 |
Level conversion circuit and input-output device using same
A level conversion circuit includes a controlling section supplied with a first power supply voltage and a second power supply voltage different from each other, the controlling section outputting...
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7511551 |
Voltage converter and method of performing the same
A voltage converter and a method of converting a voltage which maintain a first driver of a driver pair in an active state, where current flows, for only a predetermined time period. The driver...
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