It communicates over a SPI bus with Quad I/O support, clocked at up to 133 MHz — enough to sustain fast code-shadowing or data-logging reads without a parallel bus. The 2.7 V to 3.6 V supply range and industrial temperature grade (-40°C to 105°C) make it a fit for outdoor telecom base stations, factory automation controllers, and automotive body-electronics modules that need non-volatile storage with fast random access.
133 MHz Quad I/O — what the clock rate means for the bus
The Quad I/O interface operates at 133 MHz.
