Infineon Technologies CY7C1514KV18-300BZC

Overview

CY7C1514KV18 from Cypress Semiconductor is a 72-Mbit QDR® II SRAM with 2M × 36 organization, 300 MHz clock frequency, 1.8V core supply, and 1.4–1.8V I/O supply. It features separate read/write ports, DDR interfaces on both ports (700 Mbps effective data rate), and echo clocks (CQ/CQ) for high-speed data capture in networking and packet buffering applications.

For engineers reviewing the CY7C1514KV18 datasheet, CY7C1514KV18 pinout, CY7C1514KV18 application, or CY7C1514KV18 equivalent, key selection criteria include burst depth (2-word), read latency (1 or 1.5 cycles depending on DOFF), FBGA-165 package compatibility, and HSTL-18 I/O compliance for backplane and switch fabric designs.

Technical Context

This device implements synchronous pipelined QDR II architecture with independent read and write ports sharing a multiplexed address bus. Address latching occurs on alternate rising edges of K/K clocks, enabling concurrent access without bus turnaround.

It integrates a PLL for precise data placement, supports programmable impedance via ZQ pin, and includes IEEE 1149.1 JTAG boundary scan. Write operations are self-timed and synchronized to K/K, while output data is registered to C/C clocks - with optional echo clocks (CQ/CQ) for source-synchronous capture at 300 MHz.

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.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72T3615L5 and IS61WV204836B, CY7C1514KV18 delivers 20% higher clock rate and integrated echo clocks for simplified high-speed capture - critical for 10G+ switch fabric and telecom line card designs requiring deterministic latency.

Availability

CY7C1514KV18 is available at Aetrix Electronics and suitable for network packet buffering, switch fabric memory, and telecom line card memory requiring stable component supply across multi-year production cycles.

Supply support for CY7C1514KV18 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 communications, industrial, and automotive markets.

CY7C1514KV18 belongs to the QDR II SRAM product line, engineered specifically for deterministic, low-latency, high-bandwidth memory access in packet-switched infrastructure and real-time signal processing systems.

FAQ

What is the function of the DOFF pin on CY7C1514KV18?

The DOFF (Data Output OFFset) pin configures read latency: when asserted LOW, it enables 1-cycle read latency; when HIGH, it selects 1.5-cycle latency. This allows designers to trade off timing margin against throughput in systems with tight setup/hold windows at the receiver.

Can CY7C1514KV18 operate with only one clock domain (K-only)?

Yes - CY7C1514KV18 supports single-clock mode where both K and K inputs are tied together, and C and C are also tied. In this configuration, the device behaves like a standard QDR I part with 1-cycle latency, but loses the skew-mitigation benefit of dual clock domains.

How does the ZQ pin calibrate output drive strength?

The ZQ pin connects to an external 240 Ω resistor to ground. During calibration, internal circuitry measures the reference resistance and adjusts pull-up/pull-down transistor sizes to match HSTL-18 output impedance (typically 25 Ω), ensuring consistent signal integrity across voltage and temperature variations.

Is CY7C1514KV18 pin-compatible with other devices in the CY7C15xxKV18 family?

No - while all share the 165-ball FBGA package, pin assignments differ across configurations (x8/x9/x18/x36). For example, BWS[3:0] in CY7C1514KV18 replaces NWS[1:0] and RPS/WPS functions found in x8/x9 variants, making direct substitution impossible without PCB redesign.