Back to results
US 2015/0039843 A1Published application
Circuits and methods for providing data to and from arrays of memory cells
AssigneeMicron Technology, Inc.
InventorSHIGEKI TOMISHIMA
Life of this patent
Estimating the term…
Abstract
A memory device uses a global input/output line or a pair of complementary global input/output lines to couple write data signals and read data signals to and from a memory array. The same input/output line or pairs of complementary global input/output lines may be used for coupling both write data signals and read data signals.
Claims22
An apparatus, comprising:
- a first circuit coupled to a global input/output line and a local input output fine, the first circuit configured to provide write data to the global input/output line responsive to receiving external write data and further configured to provide the write data to the local input/output line from the global input/output line;
- and
- a second circuit coupled to the global input/output line and the local input output line, the second circuit configured to provide read data to the global input/output line from the local input output line and further configured to provide the read data from the global input/output line to a data node.
An apparatus, comprising:
- a first current transfer amplifier circuit configured to provide write data to a global/input output line responsive to a write signal, and further configured to selectively couple the write data from the global input/output line to a local input/output line responsive to a first control signal;
- a second current transfer amplifier circuit configured to provide read data to the global input/output line responsive to a read signal, and further configured to selectively couple the read data from the global input/output line to a data node responsive to a second control signal;
- and
- a precharge circuit configured to precharge the global input/output line before a write operation.
1 more element
An apparatus, comprising:
- a write driver circuit configured to provide write data to complementary global input/output lines in response to a write control signal;
- a first sense amplifier configured to provide the write data from the complementary global input/output fines to complementary local input/output lines;
- a read driver circuit configured to provide read data from the complementary local input/output lines in response to a read control signal;
- and
- a second sense amplifier configured to provide the read data from the complementary global input/output lines to output drivers.
2 more elements
Dependencies are inferred from the claim text.