18 Mbit HSTL SRAM — 450 ps access, 250 MHz clock
The Micron MT57W2MH8CF-4 is a 18Mbit synchronous SRAM organized as 2M x 8, with an HSTL interface and a 450 ps access time. It runs at a 250 MHz clock frequency from a 1.7 V supply, housed in a 165-ball FBGA for surface-mount assembly. This is a volatile memory part aimed at high-speed cache, networking buffers, and FPGA companion memory where every picosecond of access time matters for timing closure.
Active lifecycle — no LTB pressure
The MT57W2MH8CF-4 carries an Active product status, meaning Micron continues to manufacture it without a last-time-buy notice. For a BOM line, this removes the urgency of finding a replacement; the part can be specified into new designs with confidence that supply will hold through the production run.
Temperature grade: commercial range
Rated for 0°C to 70°C ambient, this is a commercial-temperature part. It fits indoor networking gear, test equipment, and server blades, but not outdoor or automotive environments without active cooling or a temperature-controlled enclosure.