The Microchip SST25PF020B-80-4C-SAE is a 2Mbit SPI serial Flash in an 8-SOIC package, clocked at 80 MHz. It organizes memory as 256K x 8 bits and runs from a 2.3V to 3.6V supply. The 10 µs page write time keeps firmware updates snappy.
80 MHz vs the 20 MHz sibling — the throughput gap
The SST25PF020B-80-4C-SAE clocks at 80 MHz, four times the 20 MHz of the SST25VF020-20-4I-SAE. For code shadowing or high-speed data logging, that difference cuts read latency noticeably. If your design lives indoors and needs the SPI bus to run flat-out, the PF020B is the pick.
Active production — no LTB worry
For production planning, it's a safe line-item that won't force a sudden respin.
8-SOIC rework — will it survive the hot air?
The 8-SOIC (150-mil body, 3.90 mm width) is one of the friendliest packages under a hot-air station. No exposed pad, no hidden thermal vias — just eight gull-wing leads you can see and probe. Reflow profile follows standard lead-free solder; no special bake-out needed if the moisture barrier bag is intact. This is a part you can lift and replace without lifting the pad.