Muir Patent Law, PLLC
Method and circuit for self-training of a reference voltage and memory system including the same
A semiconductor device, includes at least a first memory chip, which includes at least a first buffer connected to receive an input signal and a reference voltage; at least a first reference voltage generator configured to output a reference voltage based on a first control code; and at least a first self-training circuit for determining an operational reference voltage to use during a normal mode of operation of the semiconductor device. An output from the first buffer is input to the first self-training circuit, the first control code is output from the first self-training circuit into the first reference voltage generator, and the first buffer, the first self-training circuit, and the first reference voltage generator form a loop.
SAMSUNG ELECTRONICS CO., LTD.
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Dae-Woon Byung-Hoon Jeong-Don Seon-Kyoo
Kang Jeong Ihm Lee