1 Mbit asynchronous SRAM in a 48-ball BGA
The 71V016SA15BF is a 1 Mbit asynchronous SRAM organized as 64K x 16 bits, with a 15 ns access time that suits cacheless microcontroller expansion, FIFO buffers, or data-logging memory where deterministic read/write cycles matter more than pipelined throughput.
Package and board-fit realities
Post-reflow X-ray inspection is advisable: a cold joint on a single address or data line can look like a functional fault and waste debug time on an otherwise good board.
That means it remains a valid BOM line for new and sustaining production without a forced migration.