Storage device and electronic device including the same

An electronic device comprising:

• a power supply configured to supply a first power and a second power;
• a first solid state drive (SSD) backplane and a second SSD backplane configured to receive the first power from the power supply, the first SSD backplane comprising a first plurality of SSDs and the second SSD backplane comprising a second plurality of SSDs;
• and
• a baseboard configured to receive the second power from the power supply, to independently power on and power off the first SSD backplane and the second SSD backplane, and to access the first plurality of SSDs of the first SSD backplane, wherein the first SSD backplane is in a power-on state,
• wherein each of the first plurality of SSDs and the second plurality of SSDs comprises a temperature sensor configured to sense an operating temperature,
• wherein each SSD of the first plurality of SSDs and each SSD of the second plurality of SSDs is configured to individually adjust an impedance of a transmission driver included in the each SSD based on the operating temperature,
• wherein the first plurality of SSDs comprise a first SSD, the first SSD comprises a first temperature sensor configured to sense a first operating temperature of the first SSD, the first SSD further comprises a first transmission driver, and the first SSD is configured to adjust a first impedance of the first transmission driver, and
• wherein the first transmission driver is configured to transmit a first transmission signal to the baseboard through a first link.

A storage device comprising:

• at least one nonvolatile memory device;
• and
• a storage controller configured to control the at least one nonvolatile memory device based on a request from an external host,
• wherein the storage controller comprises:
• a temperature sensor configured to sense an operating temperature of the storage device and generate an temperature signal corresponding to the operating temperature;
• a temperature monitor configured to monitor the operating temperature of the storage device based on the temperature signal and generate an alert signal in response to the operating temperature exceeding at least one threshold value;
• a transmission impedance controller configured to generate impedance control code for adjusting an impedance based on the alert signal;
• and
• a transmission driver configured to decrease the impedance of the transmission driver in response to an increase of the operating temperature such that an eye height of a transmission signal is increased, and
• wherein the transmission driver is configured to transmit the transmission signal to the external host through a link.