Infineon Technologies CY7C2263KV18-550BZXC

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). It implements separate read/write ports with DDR interfaces (1100 MT/s effective data rate), HSTL I/O, and echo clocks (CQ/CQ) for precise high-speed data capture in networking and packet buffering systems.

For engineers reviewing the CY7C2263KV18 datasheet, CY7C2263KV18 pinout, CY7C2263KV18 application, or CY7C2263KV18 equivalent, key selection criteria include its 550 MHz operation, 2.5-cycle latency mode (DOFF = HIGH), 165-ball FBGA package, ODT support on D[17:0]/BWS[1:0]/K/K, and synchronous self-timed writes.

Technical Context

The CY7C2263KV18 uses a four-word burst architecture with independent read and write ports, eliminating bus turnaround. Its dual-clock DDR interface (K and K) enables concurrent read/write operations at 550 MHz, delivering 1100 MT/s per port while maintaining full data coherency across all bursts.

A phase-locked loop (PLL) ensures accurate data placement relative to echo clocks CQ and CQ. The device supports two latency modes: 2.5-cycle (DOFF = HIGH) and 1-cycle (DOFF = LOW), with ODT configurable via ZQ resistor and ODT pin for D[17:0], BWS[1:0], and K/K inputs.

Key Specifications

Pinout & Package

Package: 165-ball Fine-Pitch Ball Grid Array (FBGA), 13 mm × 15 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 IDT72T3615L10BG and IS61WV102418B, CY7C2263KV18 uniquely combines 550 MHz operation, programmable 2.5/1-cycle latency, ODT, and echo clocks in a 165-ball FBGA-making it optimal for new high-speed networking designs requiring timing flexibility and signal integrity.

Availability

CY7C2263KV18 is available at Aetrix Electronics and suitable for high-speed packet buffering, network switch fabric memory, telecom baseband processing, and test equipment data capture requiring stable component supply and long-term industrial availability.

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) is a U.S.-based semiconductor company specializing in high-performance memory, microcontrollers, and connectivity solutions for industrial, automotive, and communications markets.

CY7C2263KV18 belongs to Cypress's QDR® II+ SRAM product line, engineered specifically for high-bandwidth, low-latency data buffering in networking infrastructure and telecom equipment where concurrent read/write and precise timing are critical.

FAQ

What is the function of the DOFF pin on CY7C2263KV18?

The DOFF (Delay OFF) pin configures read latency mode: when asserted HIGH, it enables 2.5-cycle read latency for maximum bandwidth; when LOW, it reverts to 1-cycle latency compatible with legacy QDR I systems. This pin is sampled at power-up and remains static during operation, allowing system-level optimization of timing margins versus throughput.

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

ODT applies programmable termination resistance to D[17:0], BWS[1:0], and K/K inputs using an external ZQ resistor. The ODT pin selects between two ranges: LOW sets termination to RQ/3.33 (175–350 Ω), HIGH sets it to RQ/1.66 (175–250 Ω). This eliminates discrete termination components, reduces PCB layer count, and improves signal integrity at 550 MHz.

Can CY7C2263KV18 operate with VDDQ = 1.5 V?

Yes - the device supports VDDQ from 1.4 V to 1.8 V, explicitly including 1.5 V operation. This allows interoperability with 1.5 V I/O standards such as HSTL Class I, while maintaining full 550 MHz performance and 2.5-cycle latency functionality as specified in the datasheet.

What is the role of CQ and CQ echo clocks?

CQ and CQ are free-running, source-synchronous output clocks aligned to K and K respectively. They provide low-jitter timing references for capturing Q[17:0] data, eliminating the need for complex PLL-based clock recovery or manual deskew in FPGA or ASIC receivers. Their phase relationship is guaranteed per AC specifications, enabling robust 1100 MT/s DDR data capture.