SRAM multiplexing apparatus

摘要

An SRAM multiplexing apparatus comprise a plurality of local multiplexers and a global multiplexer. Each local multiplexer is coupled to a memory bank. The global multiplexer has a plurality of inputs, each of which is coupled to a corresponding output of the plurality of local multiplexers. In response to a decoded address in a read operation, an input of a local multiplexer is forwarded to a corresponding input of the global multiplexer. Similarly, the decoded address allows the global multiplexer to forward the input signal to a data out port via a buffer.

主权项

1. A method comprising:
performing a first logic operation by a first sense amplifier, wherein the first sense amplifier has a first input coupled to a first bit line of a memory bank and a second input coupled to a second bit line of the memory bank; in response to a decoded address of a read operation, selecting an output of a first multiplexer, wherein the output of the first multiplexer is coupled to a second multiplexer and an input of the first multiplexer is coupled to the first sense amplifier; and in response to the decoded address, selecting, by the second multiplexer, an input from a plurality of inputs coupled to the second multiplexer.