FRAM serial memory — no-write-delay non-volatility
The Cypress FM24CL16B-DGTR is a 16Kbit non-volatile FRAM (Ferroelectric RAM) organized as 2K×8, communicating over an I²C bus at up to 1 MHz. The 2.7 V to 3.6 V supply and -40°C to 85°C operating range suit it for industrial sensor nodes, metering, and portable instrumentation where instant non-volatile capture matters.
Package note for the rework bench
The 8-WDFN with exposed pad (4×4.5 mm body) requires a hot-air profile that brings the center pad to reflow temperature without lifting the corner pads. The exposed pad is the thermal and electrical ground.
