Cypress Semiconductor Corp CY7C2262XV18-450BZXC

Overview

CY7C2262XV18 from Infineon Technologies (formerly Cypress) is a 36-Mbit QDR® II+ Xtreme SRAM with separate read/write ports, 450 MHz clock operation, 2.5-cycle read latency, and on-die termination (ODT). It implements a two-word burst architecture delivering 900 MT/s data rate via DDR interfaces on both ports, and operates at 1.8 V core / 1.5 V I/O supply in high-bandwidth networking and packet buffering applications.

For engineers reviewing the CY7C2262XV18 datasheet, CY7C2262XV18 pinout, CY7C2262XV18 application, or CY7C2262XV18 equivalent, key selection criteria include concurrent read/write capability, echo clock (CQ/CQ) timing support, QVLD data validity signaling, HSTL-compatible I/O, and FBGA-165 package compatibility for high-speed memory subsystems.

Technical Context

This SRAM uses synchronous pipelined architecture with independent K and K clocks driving separate read and write paths - all inputs sampled on rising edges, outputs edge-aligned to CQ/CQ. The device supports depth expansion via RPS/WPS port selects and implements on-chip self-timed writes with full data coherency across both ports.

Its PLL ensures precise data placement relative to echo clocks, while ODT applies programmable termination (175–350 Ω range) to D[17:0], BWS[1:0], and K/K inputs. DOFF pin configures read latency between 2.5 cycles (HIGH) and 1 cycle (LOW), enabling interoperability with legacy QDR-I systems.

Key Specifications

Pinout & Package

Package: 165-ball Fine-Pitch Ball Grid Array (FBGA), 13 mm × 15 mm × 1.4 mm body, RoHS-compliant Pb-free construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-bandwidth dual-port SRAM applications.

Compared with IDT72T3615L10BG and AS7C33618B-15JIN, CY7C2262XV18 delivers 35% higher bandwidth, eliminates 36 external terminators via ODT, and provides echo clocks for simplified high-speed capture - making it uniquely suited for 10G+ networking and test equipment requiring deterministic timing.

Availability

CY7C2262XV18 is available at Aetrix Electronics and suitable for high-speed packet buffering, network switch fabric memory, and telecom line card applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for CY7C2262XV18 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 acquired Cypress Semiconductor in 2020 and maintains its high-performance memory portfolio, including QDR SRAMs, for demanding infrastructure applications.

This device belongs to the QDR® II+ Xtreme SRAM product line, engineered specifically for ultra-low-latency, high-throughput memory subsystems in networking, telecommunications, and test instrumentation.

FAQ

What is the function of the DOFF pin on CY7C2262XV18?

The DOFF (Data-Off) pin configures 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 QDR I systems. This pin is sampled during power-up initialization and remains static during normal operation.

How does On-Die Termination (ODT) work on this SRAM?

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 RQ/3.33 (175–350 Ω), HIGH sets RQ/1.66 (175–250 Ω); floating defaults to HIGH range. No external resistors are needed.

Can CY7C2262XV18 be used in depth-expanded configurations?

Yes - RPS (Read Port Select) and WPS (Write Port Select) pins allow independent activation of each port. Multiple devices can be stacked using these signals to increase memory depth while maintaining concurrent read/write capability across the bank.

What is the role of CQ and CQ echo clocks?

CQ and CQ are free-running, phase-aligned output clocks synchronized to K and K respectively. They provide timing references for external logic to sample Q[17:0] data reliably, eliminating the need for complex delay-locked loops or manual skew compensation in high-speed capture circuits.