Cypress Semiconductor Corp CY7C2663KV18-450BZXC

Overview

CY7C2663KV18-450BZXC from Infineon Technologies (formerly Cypress) is a 144-Mbit QDR® II+ SRAM with 8M × 18 organization, 450 MHz maximum clock frequency, 2.5-cycle read latency, and on-die termination (ODT) supporting D[17:0], BWS[1:0], and K/K inputs. It operates at 1.8 V core supply and 1.4–1.8 V I/O supply, delivering 1100 MT/s DDR data rate across independent read/write ports for high-bandwidth networking buffer applications.

For engineers reviewing the CY7C2663KV18-450BZXC datasheet, CY7C2663KV18-450BZXC pinout, CY7C2663KV18-450BZXC application, or CY7C2663KV18-450BZXC equivalent, this device is selected for deterministic low-latency memory access in packet buffering, switch fabric control planes, and FPGA co-processor interfaces where concurrent read/write throughput and signal integrity at 450 MHz are critical.

Technical Context

The CY7C2663KV18-450BZXC implements a true quad data rate architecture with physically separate read and write data paths, eliminating bus turnaround delays. Its four-word burst mode reduces address bus toggling while maintaining full data coherency across all ports.

It integrates a PLL for precise data placement, echo clocks (CQ/CQ) synchronized to K/K for simplified high-speed capture, and JTAG 1149.1 test access. ODT configuration is set at power-up via the ODT pin and ZQ resistor, enabling impedance matching without external terminators.

Key Specifications

Pinout & Package

Package: 165-ball fine-pitch ball grid array (FBGA), 15 mm × 17 mm × 1.4 mm body height, RoHS-compliant Pb-free construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar QDR II+ SRAM applications.

Compared with CY7C2663KV18-550BZXC, the -450BZXC offers lower power and relaxed timing margins; compared with AS7C331024B-15JIN, it delivers 4.9× higher effective bandwidth and deterministic latency but requires DDR-aware controller logic and FBGA assembly capability.

Availability

CY7C2663KV18-450BZXC is available at Aetrix Electronics and suitable for high-speed network switch buffers, FPGA-based protocol accelerators, telecom line card control planes, and real-time industrial motion controllers requiring stable component supply over extended production lifecycles.

Supply support for CY7C2663KV18-450BZXC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and high-performance memory solutions.

This device belongs to Infineon's QDR® II+ SRAM product line, engineered specifically for deterministic, low-latency, high-bandwidth memory access in networking infrastructure and real-time embedded systems.

FAQ

What is the function of the DOFF pin on CY7C2663KV18-450BZXC?

The DOFF (Data Output Format) pin selects read latency mode: when asserted HIGH, it enables 2.5-cycle latency for QDR II+ operation; when LOW, it reverts to 1-cycle latency compatible with legacy QDR I timing. This pin is sampled during power-up initialization and remains static during normal operation.

Can CY7C2663KV18-450BZXC operate with VDDQ = 1.5 V?

Yes. The device supports VDDQ from 1.4 V to 1.8 V, including 1.5 V nominal. At 1.5 V, HSTL output drive strength is reduced versus 1.8 V, but all AC timing specifications-including tAC (access time) and tHZ (output hold)-remain guaranteed per datasheet Table 23 under 1.5 V conditions.

How is depth expansion implemented using RPS and WPS?

Depth expansion is achieved by connecting multiple CY7C2663KV18 devices in parallel with shared address, clock, and data buses, while assigning unique RPS/WPS signals to each device. Each RPS/WPS pair enables only one device per port, allowing logical memory extension beyond 8M × 18 without external address decoding logic.

Is the ZQ pin required for functional operation?

Yes. The ZQ pin must be connected to a precision 240 Ω resistor (±1%) tied to VSS to calibrate output driver impedance. Without ZQ calibration, ODT and output drive strength are undefined, leading to signal integrity failures above 200 MHz. The ZQ resistor value directly sets Q/CQ output impedance to 48 Ω (0.2 × 240 Ω).