The Microchip AT45DB161E-SSHFHA-T is a 16 Mbit non-volatile Flash memory that communicates over an SPI bus at up to 85 MHz. It is organized as 528 bytes per page across 4096 pages.
The AT45DB161E-SSHFHA-T carries a current lifecycle stage and an Active product status. That means it is still in regular production with no announced last-time-buy window. The ROHS3 compliance is current. For BOM planning, this suffix is the one to freeze into a new design — the -T reel suffix is the standard Tape & Reel delivery for volume pick-and-place.