The CY7C1548KV18-400BZC: That clock rate, combined with the double-data-rate architecture, delivers back-to-back read/write throughput without dead cycles on the bus — relevant for high-bandwidth lookup tables, network packet buffers, and DSP coefficient storage where the processor can't stall. The memory is organized 4M x 18, which matches naturally to 18-bit-wide data paths common in telecom line-card and test-equipment designs.
Housed in a 165-ball LBGA (13x15 mm body per the supplier device package), this is a fine-pitch BGA — not a hand-solder part. The footprint needs controlled-depth stencil and X-ray inspection post-reflow. MSL handling applies; the listed shipping form is Tray, not Tape & Reel, so factor that into your pick-and-place feeder setup if you're running high-volume lines. For outdoor, engine-bay, or factory-floor environments, you'd need a wider-range variant in this family.
Sourcing posture and lifecycle
For volume commitments or a BOM line that needs dual-source resilience, the base product number CY7C1548 covers a range of speed and package options within the same family.