Methods of charging local input/output lines of memory devices, and related devices and systems
AssigneeMicron Technology, Inc.
InventorsJin Lan, Genta Takaya
Life of this patent
Estimating the term…
Abstract
Methods of operating a memory device are disclosed. A method may include receiving a write command, and in response to the write command, performing a write operation without precharging a local input/output line subsequent to receipt of the write command and prior to performing the write operation. Another method may include receiving a read command, performing a read operation in response to the read command, and receiving an additional command without precharging the local input/output line subsequent to performing the read operation and prior to receiving the additional command. Memory devices and systems are also disclosed.
Claims19
A method of operating a memory device, comprising:
- receiving a write command;
- and
- in response to the write command:
- connecting a main input/output (MIO) line to a local input/output (LIO) line to charge the LIO line based on a charge of the MIO line, the LIO line having a charge between high and low immediately prior to connecting the MIO line to the LIO line;
- and
- holding an LIO precharge signal low prior to connecting a MIO line to a LIO line, wherein the memory device is configured to interpret the LIO precharge signal as an indication to charge the LIO line high.
A method of operating a memory device, comprising:
- receiving a write command;
- and
- in response to the write command:
- connecting a main input/output (MIO) line to a local input/output (LIO) line to charge the LIO line based on a charge of the MIO line,
- setting an equalize-control signal low prior to connecting the MIO line to the LIO line, wherein the memory device is configured to interpret the equalize-control signal as an indication of whether the LIO line is to be charged with a charge between high and low;
- and
- setting the equalize-control signal high after disconnecting the MIO line from the LIO line.
A method of operating a memory device, comprising:
- receiving a write command;
- in response to the write command:
- connecting a main input/output (MIO) line to a local input/output (LIO) line to charge the LIO line based on a charge of the MIO line, the LIO line having a charge between high and low immediately prior to connecting the MIO line to the LIO line;
- and
- holding an LIO precharge signal low prior to connecting a MIO line to a LIO line, wherein the memory device is configured to interpret the LIO precharge signal as an indication to charge the LIO line high;
- receiving a read command;
- performing a read operation in response to the read command;
- and
- receiving an additional command without precharging the LIO line subsequent to performing the read operation and prior to receiving the additional command.
A memory device, comprising:
- circuitry configured to:
- receive a write command;
- and
- in response to the write command:
- connect a main input/output (MIO) line to a local input/output (LIO) line to charge the LIO line based on a charge of the MIO line, the LIO line having a charge between high and low immediately prior to connecting the MIO line to the LIO line;
- and
- hold an LIO precharge signal low prior to connecting a MIO line to a LIO line, wherein the memory device is configured to interpret the LIO precharge signal as an indication to charge the LIO line high;
- and
- receive a read command, perform a read operation, and receive an additional command without precharging the LIO line subsequent to performing the read operation and prior to receiving the additional command.
A system, comprising:
- at least one input device;
- at least one output device;
- at least one processor device operably coupled to the input device and the output device;
- and
- at least one memory device operably coupled to the at least one processor device and comprising:
- circuitry configured to:
- receive a write command;
- in response to the write command, connect a main input/output (MIO) line to a local input/output (LIO) line to charge the LIO line based on a charge of the MIO line, the LIO line having a charge between high and low immediately prior to connecting the MIO line to the LIO line;
- receive a read command;
- perform a read operation in response to the read command;
- and
- receive an additional command, wherein the LIO line is not precharged after the read operation and prior to receipt of the additional command.
Dependencies are inferred from the claim text.