Samsung Electronics Co., Ltd.

Kwan-yong Jin

Byoung-sul Kim

Sung-taek Hong

Sang-Hoon Lee

Sang-hoon Lee

Kwang-Hee Lee

Mi-Young Woo

Hyoung-Seok Kim

Seock-Chan Hong

An electronic system electronic device includes: an internal battery, an external battery, a memory and a plurality of function modules. The internal battery is configured to generate a first power signal. The external battery is configured to be separated from the electronic device, and to generate a second power signal. The memory is configured to operate based on the first power signal. The plurality of function modules are configured to operate based on the second power signal.

Electronic systems and electronic devices

An electronic system electronic device includes: an internal battery, an external battery, a memory and a plurality of function modules. The internal battery is configured to generate a first power signal. The external battery is detachably attached to the electronic device, the external battery configured to generate a second power signal. The memory is configured to operate based on the first power signal. The plurality of function modules are configured to operate based on the second power signal.

Provided are an application processor and a semiconductor system including the same. The semiconductor system includes the application processor, which may include a first register value and of which an operation is controlled by the first register value. The semiconductor system also includes a semiconductor device, which may include a second register value and of which an operation is controlled by the second register value, and a memory storing a third register value that is a copy of the first register value and a fourth register value that is a copy of the second register value. If the stored third register value is changed, the changed third register value is mapped onto the first register value of the processor, and if the fourth register value is changed, the changed fourth register value is mapped onto the second register value.

Application processor and semiconductor system including the same

A method is provided for operating a volatile memory device. The method includes performing a first initialization operation for the volatile memory device based on a boot code received from an external memory controller, storing the boot code in an internal register, reading the boot code stored in the internal register based on a first signal received from the external memory controller when the first initialization operation is not normally performed, and performing a second initialization operation for the volatile memory device based on the boot code read from the internal register.

Volatile memory device and methods of operating and testing volatile memory device

An input buffer circuit includes a logic unit, a clock enable buffer, and a clock buffer. The logic unit is configured to receive a clock signal and a clock enable signal, and to output a decision signal indicative of whether the clock signal is normally input, where the decision signal is activated when the clock signal is normally input. The clock enable buffer is configured to buffer the clock enable signal and to activate an internal clock enable signal, in response to an activation of the decision signal. The clock buffer is configured to buffer the clock signal and to output an internal clock signal, in response to an activation of the internal clock enable signal.

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Hwaseong-si, South Korea

Kwan-yong Jin