Patent ID: 7688120

Claim:
An output driver of a semiconductor memory device, comprising: a pull-up driver for pull-up driving an output terminal in response to a pull-up control signal; a pull-down driver for pull-down driving the output terminal in response to a pull-down control signal; a first acceleration driver for accelerating the pull-up control signal by being associated with a second pre-driver when a first pre-driver is activated to output a first data; a second acceleration driver for accelerating the pull-down control signal by being associated with the first pre-driver when the second pre-driver is activated to output the first data; the first pre-driver for outputting the pull-up control signal, wherein the pull-up control signal fully swings from a supply voltage level to a ground voltage level in response to a pull-up signal; and the second pre-driver for outputting the pull-down control signal fully, wherein the pull-up control signal swings from the supply voltage level to the ground voltage level in response to a pull-down signal, wherein the first and second acceleration drivers are activated when the first data is outputted.