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US 9,959,922 B2Granted
Semiconductor device having input/output line drive circuit and semiconductor system including the same
AssigneeSK hynix Inc.
InventorMin Su Park
Life of this patent
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Abstract
A semiconductor system includes a first semiconductor device and a second semiconductor device. The first semiconductor device outputs a command/address signal. The second semiconductor device extracts an active signal, a pre-charge signal, and addresses from the command/address signal, performs an active operation on a memory cell corresponding to the addresses, and performs a refresh operation on the memory cell corresponding to counting signals generated by counting a number of pulses in a refresh signal.
Claims5
An input/output line drive circuit comprising:
- an amplification unit suitable for sensing and amplifying a voltage difference between a bit line and an inversion bit line coupled to a memory cell;
- a first coupling unit suitable for coupling the bit line to a segment line in response to a column select signal and an enable signal;
- and
- a second coupling unit suitable for coupling the inversion bit line to an inversion segment line in response to the column select signal and the enable signal,
- wherein:
- the first coupling unit decouples the bit line from the segment line if the enable signal is disabled during the refresh operation;
- and
- the second coupling unit decouples the inversion bit line from the inversion segment line if the enable signal is disabled during the refresh operation.
5 more elements
Dependencies are inferred from the claim text.