Automotive NOR Flash for code-shadowing and data-logging
The S25FL064LABBHB020: The 108 MHz SPI clock rate with Quad I/O and QPI support means the host microcontroller can read code at up to 54 MB/s in quad mode — fast enough to support execute-in-place (XIP) from most automotive MCUs without stalling the instruction bus.
108 MHz Quad SPI — what it means for read throughput
The 108 MHz clock frequency is the headline performance spec. In Quad I/O mode, four data lines transfer one byte per clock edge, giving a theoretical read throughput of 54 MB/s. That is enough to shadow a 64 Mbit firmware image into RAM in under 150 ms, or to stream calibration tables without the MCU waiting on the Flash. The QPI mode reduces the command overhead by using the same four lines for address and command — useful when the SPI controller supports it. A buyer comparing against a 104 MHz or 80 MHz part should check whether their MCU's SPI peripheral can sustain back-to-back quad reads at this rate; some older controllers need a turnaround cycle between command and data phases that cuts the effective throughput.
BGA assembly: what the rework lab needs to know
The 24-TBGA (8x6 mm) package is a fine-pitch BGA — not a hand-solderable part. The reflow profile should follow the JEDEC standard for lead-free solder.