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7956644 Peak power reduction using fixed bit inversion  
A semiconductor device includes a first circuit block, a second circuit block, and a data bus. The data bus is coupled between the first and second circuit blocks. A first data inverter on the...
7940086 Interface circuit that can switch between single-ended transmission and differential transmission  
An object of the present invention is to realize reduction in an area of an output stage driver in an interface circuit that switches between two transmission systems. The interface circuit has...
7928756 Method and system for reducing I/O noise and power  
In an I/O circuit, noise reduction and power savings are achieved by providing feedback from the output of the I/O driver to control the current through the pre-driver and thereby the current...
7928758 Transistor gate driving circuit with power saving of power converter  
A transistor gate driving circuit is developed for power saving. It includes a first high-side transistor, a second high-side transistor and a low-side transistor. A voltage clamp device is...
7924047 Semiconductor apparatus  
The on-die termination circuit of the present invention includes a main resistance circuit and an adjustment circuit. The main resistance circuit is provided with a resistance element and a...
7924046 Configurable emphasis for high-speed transmitter driver circuitry  
Pre-emphasis may be able to operate in either of two modes. In a first mode, when one bit has a same value as the bit that immediately preceded it, an output signal for said one bit is based on a...
7919988 Output circuit and driving method thereof  
An output circuit includes a pre-driving unit configured to drive an input signal by using a different driving power according to an output operation mode and generate pull-up and pull-down...
7911233 Semiconductor device including current source circuit  
The invention provides a semiconductor device having a current input type pixel in which a signal write speed is increased and an effect of variations between adjacent transistors is reduced. When...
7906989 Apparatus for detecting a USB host  
A multi-interface integrated circuit (IC) comprises a plurality of transistors, and a level detection block. At least one transistor of the plurality of transistors is in communication with a...
7906985 Semiconductor device  
A semiconductor device includes a plurality of data driving units, each configured to drive a corresponding data output pad by a power supply voltage supplied through a power supply voltage input...
7906988 Tolerant buffer circuit and interface  
The tolerant buffer circuit and interface are provided in which reverse inflow of current to a power supply voltage from an output terminal does not occur, even if the output terminal is at a...
7902859 Input/output circuitry with compensation block  
Circuitry including an output circuit having a first variable resistance block coupled between a first supply voltage and an output node, the first variable resistance block having a plurality of...
7902875 Output slew rate control  
This document discusses, among other things, output slew rate control. Methods and structures are described to provide slew rate control of an output driver circuit such as a DRAM output driver on...
7893718 High-speed multiplexer and semiconductor device including the same  
High speed multiplexers include a first N-to-1 selection circuit, where N is an integer greater than one, a second N-to-1 selection circuit and an output driver. The first N-to-1 selection circuit...
7884638 Techniques for providing calibrated on-chip termination impedance  
An on-chip termination (OCT) calibration circuit includes one or more transistors coupled between a first terminal and a supply voltage, one or more transistors coupled between the first terminal...
7884645 Voltage level shifting circuit and method  
In a particular embodiment, a method includes receiving an input voltage at an input to a level shifting circuit that includes voltage pull-up logic. The method includes providing an output signal...
7880513 Repeater circuit with staged output  
A repeater circuit. The repeater circuit includes a first output stage having two output circuits, a second output stage having two additional output circuits, two activation circuits, and two...
7880500 Logical signal voltage converter  
A circuit for converting a lower voltage logical signal to a higher voltage. The circuit comprises a current mirror structure having first and second branches, each comprising at least a first...
7876123 High speed multiple memory interface I/O cell  
An input/output (I/O) cell including one or more driver-capable segments and one or more on-die termination (ODT) capable segments. The I/O cell may be configured as an output driver in a first...
7868661 Line driving circuit of semiconductor device  
Disclosed is a line driving circuit which includes two NMOS transistors in series between a supply voltage and a ground voltage. The output of the line driving circuit is applied to an interior...
7863936 Driving circuit with impedence calibration and pre-emphasis functionalities  
A driving circuit includes at least a driving unit, a first processing unit and a second processing unit. The driving circuit includes a first bias component, a second bias component, a first...
7859307 High speed transient active pull-up I2C  
An I2C-bus compatible device when functioning as a clock master comprises a transient active pull-up I2C (“TAP-I2C”) logic module having high side driver transistors, e.g., P-channel field effect...
7847594 Data output circuit of a semiconductor integrated circuit  
A data output circuit of a semiconductor integrated circuit includes a plurality of drivers configured to drive data output terminals to a logic level corresponding to levels of input data in...
7847584 On-die termination circuit and driving method thereof  
An on-die termination circuit is capable of increasing a resolution without enlargement of a chip or a layout size. The on-die termination circuit includes a control means, a termination...
7843222 Buffer-driving circuit capable of increasing responding speed and prolonging lifespan, buffer, and method thereof  
A method for increasing responding speed and lifespan of a buffer includes detecting an edge of an input signal of the buffer, triggering a pulse signal with a predetermined period according to...
7843223 Semiconductor device  
A semiconductor device includes a buffer unit configured to include first and second buffers, connected to each other in a cross-coupled manner, to receive a reference voltage and to buffer an...
7843224 Interface circuit that can switch between single-ended transmission and differential transmission  
An object of the present invention is to realize reduction in an area of an output stage driver in an interface circuit that switches between two transmission systems. The interface circuit has...
7843225 Protocol-based bus termination for multi-core processors  
A multi-core bus termination apparatus includes a protocol analyzer and a plurality of drivers. The protocol analyzer is disposed within a processor core and configured to receive one or more...
7839174 Mixed-voltage tolerant I/O buffer and output buffer circuit thereof  
An output buffer circuit includes a high voltage detecting circuit, a dynamic gate bias generating circuit, an output stage circuit and a pad voltage detector. The high voltage detecting circuit...
7839173 High speed, low power signal level shifter  
A system for signal level shifting in an IC can include a first inverter having a first pull-up device and a pull-down device, wherein the first inverter is operable to receive an input signal...
7834667 Precharge and discharge of I/O output driver  
A buffer circuit is disclosed. In one embodiment, the buffer circuit includes a preconditioning circuit and a driver circuit. The preconditioning circuit generates a pre-charge signal in response...
7825682 Techniques for providing adjustable on-chip termination impedance  
Techniques are provided for individually adjusting the on-chip termination impedance that is generated by input and output (IO) buffers in an input/output (IO) bank on an integrated circuit. The...
7821291 Digital calibration circuits, devices and systems including same, and methods of operation  
A calibration circuit for matching the output impedance of a driver by calibrating adjustments to the driver is described. The calibration circuit includes a driver circuit with a plurality of...
7808468 Source driver for controlling a slew rate and a method for controlling the slew rate  
A source driver for controlling a slew rate of a liquid crystal display (LCD) and a method for controlling the slew rate is provided. The source driver includes a plurality of output buffers for...
7808278 Driver calibration methods and circuits  
Described are amplifiers that facilitate high-speed communication with calibrated drive strength and termination impedance. Drivers and termination elements can be divided into a number N of...
7804324 Dynamically adjusting operation of a circuit within a semiconductor device  
Apparatus including a reference circuit configured to provide a particular impedance and having a first plurality of switching devices and a resistive device coupled to each other in parallel; a...
7805544 Device of identifying host protocol and smart card including the same  
The present invention provides an integrated circuit chip which includes a processor; a contact pad unit connected to a host through a plurality of contact pads; a host interface detector...
7804323 Impedance matching circuit and semiconductor memory device with the same  
An impedance matching circuit performs a ZQ calibration for a test on a wafer process of a semiconductor memory device. The impedance matching circuit of the semiconductor memory device includes a...
7800408 High speed transient active pull-up I2C  
An I2C-bus compatible device when functioning as a clock master comprises a transient active pull-up I2C (“TAP-I2C”) logic module having high side driver transistors, e.g., P-channel field effect...
7800416 Data output buffer circuit  
A data output circuit includes a pre-driving block configured to receive input data, generate a plurality of pull-up signals and pull-down signals, and change enable times of the pull-up signals...
7795919 Transmitter driver circuit in high-speed serial communications system  
A driver circuit in a high-speed serial communications system changes an input data signal into a differential signal. A first output terminal is connected to a predetermined power supply voltage...
7795917 High-speed buffer circuit, system and method  
A buffer circuit includes at least one part that is powered by a supply voltage by means of a first initialization transistor, and connected to the ground by means of a second initialization...
7791367 Driver with selectable output impedance  
An integrated circuit is configured to be in a calibration mode of operation to establish a desired output impedance of a driver circuit. A predetermined constant voltage is established at a...
7791958 Pseudo differential output buffer, memory chip and memory system  
An output buffer includes first and second input transistors, first and second output loads and a current source. The first and second input transistors have first current electrodes that are...
7782091 Apparatus, system, and method for driver circuits  
Some embodiments include an output driver having a first circuit to provide a plurality of first parallel circuit paths between an output node and a first supply node, a second circuit to provide...
7782078 On die termination circuit and method for calibrating the same  
On die termination circuit and method for calibrating the same includes a external resistor connected to a first node, a plurality of calibration resistors connected to a second node, the...
7782080 High capacitive load and noise tolerant system and method for controlling the drive strength of output drivers in integrated circuit devices  
An output driver calibration circuit includes a programmable drive strength output pullup driver including a strongest transistor and a number of other transistors, a programmable drive strength...
7777526 Increased sensitivity and reduced offset variation in high data rate HSSI receiver  
Signal offset variation caused by transistor variation/mismatch in integrated circuits may be reduced. In one embodiment, a buffer circuit has variable-valued circuit elements. Offset variation...
7768310 Semiconductor device, method of switching drive capability of the semiconductor device, and system including semiconductor devices  
A semiconductor device connected to other semiconductor device, includes a control portion which controls a drive capability for the other semiconductor device based on control information for the...
7768312 Semiconductor device and driver control method  
A semiconductor device of the invention has a plurality of P-channel transistors, to which resistance elements are inserted in series, prepared on a pull-up side of a driver such that an ON...