4 ns access time — timing closure for the bus
The MT58L64L32DT-7.5TR: The 4 ns access time is the window from address assertion to valid data on the output pins. In a 133 MHz synchronous system, the controller must support the synchronous burst protocol.
133 MHz clock and 64K x 32 organization
The 133 MHz clock drives the burst-mode pipeline, allowing back-to-back read or write transactions without dead cycles between accesses — the key advantage over asynchronous SRAM at this density. The 32-bit data word width matches directly to a 32-bit memory bus without byte-lane muxing, which saves a few logic gates in the FPGA or ASIC bridge. The 2Mbit capacity (64K x 32) fits moderate-size lookup tables, packet buffers, or trace buffers in embedded systems.
Lifecycle and sourcing
The MT58L64L32DT-7.5TR carries an Active product status. It is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time. No official second-source or direct replacement is listed in the available records; the part should be specified with its exact order code for BOM matching.