The Micron MT58L128L32P1T-10 is a 4Mbit synchronous SRAM from the SYNCBURST family, organized 128K x 32 and accessed over a parallel interface. With a 5 ns access time and 100 MHz clock rate, it is designed for high-throughput cache, FIFO, and buffer applications in networking, telecom, and computing equipment that demand single-cycle back-to-back reads and writes without bus-turnaround dead cycles. The 32-bit-wide organization maps directly to a 32-bit datapath, saving the byte-lane muxing and extra PCB routing that narrower parts require.
128K x 32 organization — BOM fit for 32-bit systems
The 128K x 32 organization means one chip provides 4Mbit of storage on a full 32-bit data bus.
Temperature grade: 0°C to 70°C — indoor use only
The commercial temperature range (0°C to 70°C) limits this part to indoor, temperature-controlled environments such as server rooms, telecom central offices, and benchtop test equipment. It is not rated for industrial or automotive applications where ambient temperature can exceed 70°C or drop below 0°C.
Package and mounting
Housed in a 100-pin TQFP (thin quad flat pack) for surface-mount assembly. The fine-pitch leads require careful solder-paste stencil design and reflow profile control, typical for TQFP packages. No special handling beyond standard MSL precautions.
The SYNCBURST family uses a synchronous pipeline architecture that eliminates the dead cycles associated with asynchronous SRAM when switching between read and write. This makes it a natural fit for high-speed cache and FIFO applications where back-to-back transactions are the norm.