72 Mbit QDR II synchronous SRAM for high-throughput buffer applications
The Infineon CY7C1514KV18-250BZXI is a 72 Mbit synchronous SRAM built on the QDR II architecture, organized as 2M x 36 bits. It clocks at 250 MHz and operates from a 1.7 V to 1.9 V supply. The part is housed in a 165-ball FBGA (13×15 mm) and rated for the industrial temperature range of –40°C to 85°C. QDR II eliminates the bus-turnaround penalty between reads and writes, making this part a fit for network packet buffers, digital signal processing pipelines, and high-speed data acquisition systems where back-to-back throughput matters more than single-access latency.
250 MHz clock — what it means for the bus
At 250 MHz, the 36-bit data bus transfers at double-data-rate on both read and write ports. The 2M x 36 organization requires 36 address bits per access.
Lifecycle and sourcing reality
The lifecycle record shows an EOL-hot flag alongside an Active status entry. This inconsistency means the part may be in a last-time-buy window or transitioning to end-of-life — the buyer should confirm the current factory order window and final shipment date before committing the BOM. We source this part to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time. No official successor or pin-compatible second source is listed in the available records.
Package and mounting constraints
The 165-ball FBGA (13×15 mm) is a fine-pitch BGA requiring controlled solder-paste deposition and X-ray inspection after reflow. The surface-mount footprint is non-trivial for hand-assembly or rework — plan for a reflow oven and stencil. The industrial temperature rating (–40°C to 85°C) covers outdoor telecom cabinets and factory-floor equipment, but the BGA package itself imposes board-level reliability constraints under thermal cycling; a conformal coating or underfill may be needed in high-vibration or high-humidity environments.