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US 7,924,634 B2Granted
Repeater of global input/output line
AssigneeHynix Semiconductor Inc.
InventorsTae Jin Kang, Seung Hyun Ryu
Life of this patent
Estimating the term…
Abstract
A repeater of a global input/output line includes a data transmitter including first and second drivers for outputting data signals of the global input/output line through different transmission routes in response to a transmission direction control signal, and a third driver for driving the global input/output line in response to an output signal of the data transmitter.
Claims10
A repeater of a global input/output line, the repeater comprising:
- a first buffer unit configured to buffer data signals of the global input/output line;
- a first enable unit connected between a source voltage and the first buffer unit;
- a second enable unit connected between the first buffer unit and a ground voltage;
- a second buffer unit configured to buffer data signals of the global input/output line;
- a third enable unit connected between a source voltage and the second buffer unit;
- a fourth enable unit connected between the second buffer unit and a ground voltage;
- and
- a data output unit configured to drive the global input/output line in response to an output signal of the first buffer unit and an output signal of the second buffer unit;
- wherein the first to the fourth enable units are turned on simultaneously in response to the transmission direction control signal.
6 more elements
A repeater of a global input/output line, the repeater comprising:
- a first buffer unit configured to buffer data signals of the global input/output line;
- a first enable unit connected between a source voltage and the first buffer unit;
- a second enable unit connected between the first buffer unit and a ground voltage;
- a second buffer unit configured to buffer data signals of the global input/output line;
- a third enable unit connected between a source voltage and the second buffer unit;
- a fourth enable unit connected between the second buffer unit and a ground voltage;
- a first data output unit configured to drive the global input/output line in response to an output signal of the first buffer unit and an output signal of the second buffer unit;
- a third buffer unit configured to buffer data signals of the global input/output line;
- a fifth enable unit connected between a source voltage and the third buffer unit;
- a sixth enable unit connected between the third buffer unit and a ground voltage;
- a fourth buffer unit configured to buffer data signals of the global input/output line;
- a seventh enable unit connected between a source voltage and the fourth buffer unit;
- a eighth enable unit connected between the fourth buffer unit and a ground voltage;
- and
- a second data output unit configured to drive the global input/output line in response to an output signal of the third buffer unit and an output signal of the fourth buffer unit,
- wherein the first buffer unit, the second buffer unit and the first data output unit or the third buffer unit, the fourth buffer unit and the second data output unit are enabled according to the transmission direction control signal to allow the global input/output line to transmit data signals in bi-direction, and the first to the fourth enable units are turned on simultaneously when data signals of the global input/output line are output in a first signal direction in response to the transmission direction control signal, and the fifth to the eighth enable units are turned on simultaneously when data signals of the global input/output line are output in a second signal direction in response to the transmission direction control signal.
13 more elements
Dependencies are inferred from the claim text.