Abstract: A flash memory apparatus including a command analysis unit, a first flash memory and a second flash memory is provided. The command analysis unit with a plurality of command buffers receives a plurality of command elements and queues the command elements in the command buffers in sequence. The command analysis unit transmits the command elements simultaneously to the first flash memory and the second flash memory through a command bus, and the flash memory device writes/reads the first flash memory and the second flash memory simultaneously through a first data bus and a second data bus different from the first data bus respectively to execute an operation. The flash memory device queues the command elements so as to enhance the command throughput, and the flash memories share the same command bus for dual channel operation.

Abstract: The present invention provides a priority encoder comprising a first, second and third resolving-encoding circuit, each of which has a plurality of input terminals receiving a plurality of requests, determines one of the input terminals receiving one of the requests as a prior terminal, and outputs a forward request and an address of the prior terminal, wherein the forward requests of the first and second resolving-encoding circuit are received as the requests of the third resolving-encoding circuit, and a multiplexer receiving the addresses output from the first and second resolving-encoding circuit, and selectively outputting one of the received addresses according to the prior terminal determined by the third resolving-encoding circuit.

Abstract: A sense amplifier (SA) stage includes a single SA used to selectively sense signals from both directions in a datapath. The SA is connected to detect the differential signal present at a pair of sense nodes on the datapath. A first pair of switches is inserted in the datapath between the sense nodes and a first transfer port (FTP). A first equalizer is connected to the differential lines at points between the first pair of switches and the FTP. A second pair of switches is inserted in the datapath between the sense nodes and a second transfer port (STP), with a second equalizer connected to the differential lines between the second pair of switches and the STP. Before transferring data from the FTP to the STP, the first equalizer is turned on while the first pair of switches is turned off. While the data is being developed at the FTP, the first equalizer is turned off, the first pair of switches is turned on, the second pair of switches is off, and the second equalizer is on.