Semiconductor devices and semiconductor systems including the same
AssigneeSK hynix Inc.
InventorJeong Tae Hwang
Life of this patent
Estimating the term…
Abstract
A semiconductor device including an internal command generator and a bias generator is provided. The internal command generator generates first to fourth internal command signals sequentially enabled in synchronization with pulses of an external program signal. The first internal command signal controls a read operation for reading out data stored in memory cells, and the second and third internal command signals control a program operation for programming the memory cells. The bias generator generates a read bias signal for controlling a level of an output voltage signal, which is applied to an internal circuit, in response to the first and fourth internal command signals.
Claims21
A semiconductor device comprising:
- an internal command generator configured to generate first to fourth internal command signals sequentially enabled in synchronization with pulses of an external program signal, the first internal command signal controlling a read operation for reading out data stored in memory cells and the second and third internal command signals controlling a program operation for programming the memory cells;
- and
- a bias generator configured to generate a read bias signal for controlling a level of an output voltage signal, which is applied to an internal circuit, in response to the first and fourth internal command signals.
A semiconductor device comprising:
- an internal command generator configured to generate a first internal command signal enabled when a first pulse of an external program signal is applied thereto and to generate a second internal command signal enabled when a second pulse of the external program signal is applied thereto;
- a read controller configured to execute a read operation to output data stored in memory cells as a read data when the first internal command signal is enabled;
- and
- a control signal generator configured to generate a program control signal which is enabled for a program operation when the read data has a different level from an external data and the second internal command signal is enabled.
A semiconductor system comprising:
- a semiconductor controller configured to generate an external program signal and an external data;
- and
- a semiconductor device configured to receive the external program signal and the external data to generate first to fourth internal command signals which are sequentially enabled whenever pulses of the external program signal are inputted,
- wherein the first internal command signal controls a read operation for reading out data stored in memory cells, the second and third internal command signals control a program operation for programming the memory cells, and the first and fourth internal command signals control an enablement of a read bias signal for controlling a level of an output voltage signal which is applied to an internal circuit.
Dependencies are inferred from the claim text.