The Infineon CY7C1320JV18-300BZXC is a 18 Mbit synchronous DDR-II SRAM organized as 512K x 36 bits, clocked at 300 MHz over a parallel interface.
165-ball FBGA — rework and layout notes
The 165-ball FBGA (13x15 mm body) is a fine-pitch BGA — typical ball pitch for this family is 0.8 mm or 1.0 mm. That means a multi-layer PCB with via-in-pad or microvia fanout under the package. For rework, the part is MSL-rated (check the bag label), and the 13x15 mm footprint has moderate thermal mass: a standard lead-free profile with a top-side preheat zone around 150°C to 160°C will reflow the balls without lifting adjacent passives.
Commercial temperature — indoor systems only
Not suitable for outdoor cabinets, motor drives, or automotive under-hood applications where the temperature swings below freezing or above 70°C.