Patent application number | Description | Published |
20090273385 | OUTPUT CIRCUIT OF SEMICONDUCTOR DEVICE - An output circuit of a semiconductor device includes a signal selector configured to receive first and second input data signals and sequentially outputting the first and second input data signals in response to a phase signal; and an output level controller configured to control a voltage level of an output signal of the signal selector based on the first and second input data signals. | 11-05-2009 |
20090278577 | SEMICONDUCTOR DEVICE INCLUDING PHASE DETECTOR - A semiconductor device including an edge synchronizer which outputs a synchronized strobe signal generated by synchronizing a transition time point of a strobe signal with clock edges of a main clock or a sub clock, a detector which outputs a phase determination signal indicating a phase difference between the main clock and the sub clock in response to the synchronized strobe signal, and a duty ratio corrector which adjusts a duty ratio of the main clock and the sub clock in response to the phase determination signal. | 11-12-2009 |
20090322375 | PARALLEL RESISTOR CIRCUIT, ON-DIE TERMINATION DEVICE HAVING THE SAME, AND SEMICONDUCTOR MEMORY DEVICE HAVING THE ON-DIE TERMINATION DEVICE - A parallel resistor circuit that can reduce an error of a resistance value, an on-die termination having the same, and a semiconductor device having the on-die termination device. The semiconductor memory device includes a calibration circuit configured to pull up or pull down a predetermined node and compare a voltage of the predetermined node with a reference voltage to generate calibration codes, by using parallel resistor units that are turned on or off in response to the calibration codes. An output driver is configured to terminate a data output node to a pull-up or pull-down level to output data, by using the parallel resistor units. At least one of the parallel resistor units having at least two resistivities includes resistors with different resistivities connected to each other in parallel. | 12-31-2009 |
20100289677 | CIRCUIT AND METHOD FOR PARALLEL TO SERIAL CONVERSION - A parallel to serial conversion circuit makes output data normally swing even in a high-speed operation. The parallel to serial conversion circuit includes a main selection block configured to drive an output node sequentially in response to data on a first line and data on a second line, and a subsequent selection block configured to drive the output node sequentially in response to data on a subsequent first line and data on a subsequent second line, wherein the output node is driven by inverted data of the data on the subsequent first line and inverted data of the data on the subsequent second line. | 11-18-2010 |
20110156791 | OUTPUT CIRCUIT OF SEMICONDUCTOR DEVICE - An output circuit of a semiconductor device includes a signal selector configured to receive first and second input data signals and sequentially outputting the first and second input data signals in response to a phase signal; and an output level controller configured to control a voltage level of an output signal of the signal selector based on the first and second input data signals. | 06-30-2011 |
20130113523 | SEMICONDUCTOR DEVICE - A semiconductor device includes a main driving unit configured to serialize first and second data applied in parallel and output the serialized data to a data output pad, and an auxiliary driving unit configured to drive the data output pad in a period when the first and second data have different logic levels. | 05-09-2013 |