SST26VF064BT-104I/SM

SST26VF064BT-104I/SM is a Microchip 64-Mbit (8M x 8) Serial Quad I/O (SQI) SuperFlash memory in an 8-lead SOIJ package, running SPI-compatible SQI at up to 104 MHz on a single 2.7 to 3.6 V supply across the industrial -40 to +85 C range. Its advantage is throughput per pin: the 4-bit SQI interface with burst modes supports execute-in-place code storage with a fraction of the pins and board area of parallel Flash, while SuperFlash technology delivers fast erase (18 ms sector/block, 35 ms full-chip) that shortens production programming and field firmware-update time. Reliability is built for long-life products: 100,000-cycle endurance, greater than 100 years data retention, 256-byte page programming, flexible 4 KB sector / 64 KB block erase, individual block locking, and program/erase suspend. Selection advice: the BT suffix (power-up default SPI with WP#/HOLD# enabled) versus BA (power-up Quad I/O) changes the boot behaviour of your host, so match the suffix to your firmware init sequence, not just the density; the SM suffix is the 8-lead SOIJ package, and the 104I code is the 104 MHz industrial-temperature grade. If your design needs the same die in a smaller footprint, ask about the WDFN or TBGA orderings in the same family.