Micron Technology, Inc.
Parallel access for memory subarrays

Abstract:

Techniques herein may allow a row of a subarray in a bank of a memory device to be activated before a precharge operation has been completed for a previously opened row of memory cells in the same bank. Each subarray within the bank may be associated with a respective local latching circuit, which may be used to maintain phases at the subarray independent of subsequent commands to the same bank. For example, the latching circuit may internalize timing signals triggered by a precharge command for a first row such that if an activation command is received for a different subarray in the same bank at a time before the precharge operation of the first row is complete, the precharge operation may continue until the first row is closed, as the timing signals triggered by the precharge command may be maintained locally at the subarray using the latching circuit.