Semiconductor device and method for operating the same
AssigneeSK hynix Inc.
InventorSang Oh Lim
Life of this patent
Estimating the term…
Abstract
A semiconductor device comprises a memory block having a content addressable memory (CAM) cell array storing data for internal operation conditions, and a memory cell array. The semiconductor device also comprises a page buffer to program data in the memory block or read the data programmed in the memory block; a control logic to activate a reset enable signal for initializing the page buffer during a reset operation and output the activated reset enable signal; and a power-supply controller to output a reset control signal for initializing the page buffer when the reset enable signal is activated, and provide a page buffer power-supply signal to the page buffer. The power-supply controller provides the page buffer power-supply signal after initialization of the page buffer.
Claims17
A semiconductor device comprising:
- a memory block comprising a content addressable memory (CAM) cell array and a memory cell array, the CAM cell array that stores data for internal operation conditions of the semiconductor device;
- a page buffer that programs data in the memory block or reads the data programmed in the memory block and receives a page buffer power-supply signal after lapse of a predetermined time from initialization of latches of the page buffer;
- a control logic that activates a reset enable signal during a reset operation and outputs the activated reset enable signal;
- and
- a power-supply controller that activates a reset control signal to initialize the page buffer according to an external power-supply signal when the reset enable signal is activated, and provides the page buffer power-supply signal to the page buffer after the reset control signal is activated,
- wherein the power-supply controller provides the page buffer power-supply signal after initialization of the page buffer, and
- wherein the page buffer power-supply signal is generated in response to the external power-supply signal.
A method for operating a semiconductor device comprising:
- receiving an external power-supply signal to generate a power-on reset signal;
- activating a reset enable signal in response to a reset command;
- reading CAM data stored in a CAM cell array, the CAM data comprising data for internal operation conditions of the semiconductor device;
- initializing latches of a page buffer in response to a reset control signal that is activated according to the external power-supply signal;
- and
- applying a page buffer power-supply signal to the page buffer after the reset control signal is activated,
- wherein the page buffer power-supply signal is applied to the page buffer after the lapse of a predetermined time from initialization of the latches of the page buffer, and
- wherein the page buffer power-supply signal is generated in response to the external power-supply signal.
A method for operating a semiconductor device comprising:
- receiving an external power-supply signal to generate a power-on reset signal;
- activating a reset enable signal when the power-on reset signal is deactivated;
- reading CAM data stored in a CAM cell array, the CAM data comprising data for internal operation conditions of the semiconductor device;
- initializing latches of a page buffer in response to a reset control signal that is activated according to the external power-supply signal;
- and
- applying a page buffer power-supply signal to the page buffer after the reset control signal is activated,
- wherein the page buffer power-supply signal is applied to the page buffer after lapse of a predetermined time from initialization of the latches of the page buffer, and
- wherein the page buffer power-supply signal is generated in response to the external power-supply signal.
Dependencies are inferred from the claim text.