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US 6,388,944 B2Granted
Memory component with short access time
AssigneeInfineon Technologies AG
InventorsPeter Schrögmeier, Stefan Dietrich, Torsten Partsch, Thomas Hein, Patrick Heyne, Thilo Marx
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Abstract
A memory chip with a short data access time limits the propagation time of a bit on local data line strips which are far away from output amplifiers by centering switches with respect to a center of the cell array strips, wherein the switches are junction points between local data lines and main data lines.
Claims13
A memory component, comprising:
- a cell array having a plurality of memory cells disposed in said cell array, said cell array being configured such that n bits are synchronously accessible in a synchronous memory access, n being an integer number;
- a plurality of bit lines connected to respective ones of said memory cells;
- a plurality of preamplifiers connected to respective ones of said bit lines;
- a plurality of local data lines connected to respective ones of said preamplifiers;
- a plurality of switches connected to respective ones of said local data lines;
- a plurality of main data lines connected to respective ones of said switches;
- a plurality of output amplifiers connected to respective ones of said main data lines;
- and
- said switches being disposed such that a longest possible propagation time of a bit in given ones of said local data lines used for the synchronous memory access is shorter, the further away from associated ones of said output amplifiers said given ones of said local data lines are relative to further ones of said local data lines which are simultaneously required for the synchronous memory access.
6 more elements
Dependencies are inferred from the claim text.