What this 4 Mbit SPI Flash is for
The AT45DB041E-SSHN2B-T is a 4 Mbit serial Flash memory from Adesto (now part of Dialog Semiconductor), organised as 256 bytes per page across 2048 pages. It communicates over a standard SPI bus at up to 85 MHz, making it a drop-in code or data storage companion for any MCU with an SPI peripheral — common in IoT edge nodes, industrial sensors, and embedded control boards that need non-volatile storage for firmware images, configuration tables, or data logs.
8-pin SOIC narrow body (3.90 mm width), surface-mount. Standard reflow profile; no underfill needed. Footprint matches legacy 8-SOIC Flash parts.
The part is ROHS3 compliant.