Semiconductor device

摘要

A semiconductor device is disclosed, which relates to a technology for reducing current consumption of a semiconductor chip configured to operate a transmitter (Tx) at a high speed. The semiconductor device includes a data driving unit configured to output a pull-up drive signal and a pull-down drive signal by level-shifting an input signal according to a clock signal; and a data output unit configured to adjust slew rates of the pull-up drive signal and the pull-down drive signal according to a code signal, and output impedance-adjusted signals to an output terminal.

主权项

1. A semiconductor device comprising:
a data driving unit configured to output a pull-up drive signal and a pull-down drive signal by level-shifting an input signal according to a clock signal; and a data output unit configured to adjust slew rates of the pull-up drive signal and the pull-down drive signal according to a code signal and output impedance-adjusted signals to an output terminal, wherein the data driving unit includes: an input unit configured to drive and latch a control signal according to the clock signal and a pulse control signal; a level shifter configured to level-shift the input signal according to the clock signal when the control signal is activated, and output the output signals according to the level-shifting result; a pulse generator configured to output the pulse control signal by combining the output signals; and a drive signal generator configured to pull up or down the pull-up drive signal and the pull-down drive signal according to the output signal.