Infineon Technologies CY7C2263KV18-550BZXI

Overview

CY7C2263KV18 from Cypress Semiconductor is a 36-Mbit QDR® II+ SRAM with 2 M × 18 organization, 550 MHz clock frequency, 2.5-cycle read latency, and on-die termination (ODT) supporting D[17:0], BWS[1:0], and K/K inputs. It features separate read/write DDR ports, echo clocks (CQ/CQ), QVLD data-valid indicator, and operates at core VDD = 1.8 V ± 0.1 V with I/O VDDQ = 1.4–1.8 V - deployed in high-bandwidth network packet buffering and FPGA co-processor memory subsystems.

For engineers reviewing the CY7C2263KV18 datasheet, CY7C2263KV18 pinout, CY7C2263KV18 application, or CY7C2263KV18 equivalent, key selection criteria include its 1100 MT/s effective data rate, FBGA-165 package compatibility, HSTL I/O interface, DOFF-configurable latency mode, and JTAG 1149.1 test access support for production validation and system-level timing closure.

Technical Context

The CY7C2263KV18 implements a synchronous pipelined architecture with independent read and write ports sharing a multiplexed 19-bit address bus. Each port uses DDR interfaces synchronized to complementary K/K clocks, enabling concurrent read and write operations without bus turnaround.

It integrates a PLL for precise data placement, echo clocks (CQ/CQ) aligned to K/K for simplified high-speed capture, and programmable ODT with dual-range selection via ODT pin tied to ZQ resistor. The device supports depth expansion via RPS/WPS controls and byte-write masking via BWS[1:0] for partial-word updates.

Key Specifications

Pinout & Package

Package: 165-ball Fine-Pitch Ball Grid Array (FBGA), 13 mm × 15 mm × 1.4 mm body, 0.8 mm ball pitch, 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 IDT72T3615L5PF and IS61WV204818BLL-10BLI, the CY7C2263KV18 delivers 10% higher clock rate, integrated ODT/ZQ, echo clocks for timing margin recovery, and true concurrent port operation - making it uniquely suited for next-generation packet-processing and FPGA-accelerated systems requiring deterministic high bandwidth.

Availability

CY7C2263KV18 is available at Aetrix Electronics and suitable for network packet buffering, FPGA co-processor cache, and telecom baseband processing requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for CY7C2263KV18 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

Cypress Semiconductor (now part of Infineon Technologies) designs high-performance memory and programmable solutions for networking, automotive, and industrial applications.

The CY7C2263KV18 belongs to Cypress's QDR® II+ SRAM product line, engineered specifically for ultra-low-latency, high-bandwidth memory interfacing in packet-switched infrastructure and FPGA-based accelerators.

FAQ

What is the function of the DOFF pin on CY7C2263KV18?

The DOFF (Delay OFF) pin selects read latency mode: when asserted HIGH, the device operates in QDR II+ mode with 2.5-cycle read latency for maximum bandwidth; when LOW, it reverts to QDR I–compatible 1-cycle latency. This allows seamless integration into existing designs while enabling performance upgrades in new systems without changing PCB layout or timing constraints.

How does on-die termination (ODT) work on CY7C2263KV18?

ODT is enabled via the ODT pin and calibrated using an external resistor on the ZQ pin. When ODT is active, internal termination resistors match the system data bus impedance - supporting D[17:0], BWS[1:0], and K/K inputs. Two ODT ranges are selectable: LOW (RQ/3.33) for wider impedance range (175–350 Ω), HIGH/floating (RQ/1.66) for tighter range (175–250 Ω), eliminating 18 external resistors and associated PCB area.

Can CY7C2263KV18 be used with a 1.5 V VDDQ supply?

Yes - the device supports VDDQ from 1.4 V to 1.8 V, explicitly including 1.5 V operation. Electrical characteristics such as setup/hold times and output drive strength are guaranteed across this full range per the datasheet's DC specifications. No configuration changes or derating are required when operating at 1.5 V VDDQ, making it compatible with mixed-voltage FPGA I/O banks.

What is the purpose of CQ and CQ echo clocks?

CQ and CQ are free-running, source-synchronous echo clocks derived from K and K respectively. They are edge-aligned with Q[17:0] output data and used by receiving logic (e.g., FPGA input registers) to capture data with minimal skew. Unlike forwarded clocks in SerDes, they require no PLL lock time and provide deterministic phase relationship - critical for meeting tight setup/hold windows at 550 MHz clock rates.