32 Mbit parallel NOR Flash in a 48-ball FBGA
The Infineon S29JL032J70BHI323 is a 32 Mbit parallel NOR Flash memory from the JL-J series, organized as 4M x 8 or 2M x 16.
70 ns access time — bus timing margin
The 70 ns access time is the key timing parameter: it defines how quickly the memory drives data onto the bus after the address is valid. For a host controller running at 10–20 MHz, this leaves comfortable margin for address decoding and signal settling. If your design uses a faster bus clock, verify the read cycle timing against the controller's memory interface spec — the 70 ns window is fixed.
48-ball FBGA — footprint and rework
The balls are lead-free (ROHS3 compliant), so the standard SnAgCu profile applies. Store the reels dry — MSL rating is typical for this package class; if the moisture barrier bag is compromised, bake before reflow per J-STD-033.