What this FRAM does on the board
The FM25V20A-DGTR is a 2Mbit FRAM organized as 256K x 8 bits, communicating over SPI at up to 40 MHz.
Lifecycle reality — EOL flagged
The FM25V20A-DGTR carries an end-of-life (EOL) status, meaning Cypress has scheduled this variant for discontinuation. The base product number FM25V20 remains the reference, but the DGTR suffix (DFN package, Tape & Reel) is the specific version being wound down. If you are freezing a BOM or supporting a long-life product, plan for a last-time buy or evaluate a drop-in replacement from the same F-RAM family — the 2Mbit SPI FRAM footprint is shared across several Cypress/Infineon order codes. Sourcing is through independent distribution; we can quote current availability and pricing against an RFQ.
Where you find it in the field
Typical homes for this FRAM include industrial PLCs that log runtime data, smart meters recording consumption intervals, and medical devices storing calibration constants that change during operation. The non-volatile nature means no battery backup is needed for retention, and the SPI interface keeps the pin count low — four signal wires plus power. On a repair bench, if a board has a scorched FRAM or one that lost its contents, the FM25V20A-DGTR is a direct swap for any 2Mbit SPI FRAM in the same DFN-8 footprint, provided the supply voltage matches.