256 Mbit NOR Flash on SPI at 1.8 V
The Micron MT25QU256ABA8E55-0SIT TR is a 256 Mbit NOR Flash memory organized as 32M x 8 bits, accessed through a standard SPI interface. Clocked at 133 MHz, it operates from 1.7 V to 2 V. Operating temperature spans -40°C to 85°C. The 23-XFWLBGA package keeps the footprint compact.
133 MHz SPI — what it means for the bus
At 133 MHz, the SPI clock delivers a raw bit rate of 133 Mbps in single-I/O mode. This clock rate matches the 256 Mbit density siblings.
