Infineon Technologies CY7C1413KV18-333BZXI

Overview

CY7C1413KV18-333BZXI from Cypress Semiconductor is a 2 M × 18, 36-Mbit QDR® II SRAM with four-word burst architecture, 333 MHz clock frequency, DDR interfaces on independent read/write ports (666 MHz data rate), and 1.8 V core / 1.4–1.8 V I/O supply - deployed in high-bandwidth packet buffering for telecom line cards.

For engineers reviewing the CY7C1413KV18-333BZXI datasheet, CY7C1413KV18-333BZXI pinout, CY7C1413KV18-333BZXI application, or CY7C1413KV18-333BZXI equivalent, key selection criteria include 1.5-cycle read latency (DOFF = HIGH), echo clock (CQ/CQ) support for timing margin, 165-ball FBGA package compatibility, and synchronous self-timed write capability.

Technical Context

The CY7C1413KV18-333BZXI implements QDR II architecture with physically separate read and write data paths, eliminating bus turnaround delays. It uses dual input clocks (K/K) for address/data latching and dual output clocks (C/C) with echo clocks (CQ/CQ) to compensate for PCB flight time skew.

Internally, it organizes memory as four 512 K × 18 arrays, accepts 19-bit addresses (A[18:0]), supports byte-write via BWS[1:0], and delivers full data coherency with synchronous pipelined access. The integrated PLL ensures precise data placement relative to output clocks.

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 (BZXI suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72T3615L5 and IS61QW25636A-333B, the CY7C1413KV18-333BZXI offers unique 2 M × 18 depth-width balance, flexible DOFF-configurable latency, and broader VDDQ range - making it optimal for depth-critical telecom buffering where 18-bit bus width aligns with common SerDes lane groupings.

Availability

CY7C1413KV18-333BZXI is available at Aetrix Electronics and suitable for telecom infrastructure, network processor interfacing, baseband processing, and high-speed test equipment requiring stable component supply and long-term obsolescence planning.

Supply support for CY7C1413KV18-333BZXI 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 systems, with focus on signal integrity and timing precision.

The QDR® II SRAM product line targets high-bandwidth, low-latency memory subsystems in networking and test equipment - emphasizing concurrent access, echo-clock timing robustness, and synchronous self-timed operation.

FAQ

What is the function of the DOFF pin on CY7C1413KV18-333BZXI?

The DOFF (Data Output OFFset) pin controls read latency mode: when asserted HIGH, it configures 1.5-cycle read latency for optimized bandwidth; when LOW, it enables 1-cycle latency for minimal delay. This is implemented via internal pipeline staging and affects timing closure requirements for downstream receivers.

Does CY7C1413KV18-333BZXI support single-ended clocking?

No - the device requires differential clock pairs (K/K and C/C) for proper operation, though only the rising edge of each clock is used. Single-ended drive is not supported; external termination and matched routing for both phases are mandatory to meet setup/hold timing.

How many address bits does CY7C1413KV18-333BZXI require?

It uses 19 address bits (A[18:0]) to access its 2 M × 18 memory array. These are multiplexed for both read and write ports and sampled synchronously on the rising edge of the K clock during active operations.

Can CY7C1413KV18-333BZXI operate with VDDQ = 1.5 V while VDD = 1.8 V?

Yes - the datasheet explicitly permits VDDQ in the range 1.4 V to VDD (1.8 V), so 1.5 V is fully compliant. This allows interoperability with 1.5 V logic families while maintaining 1.8 V core stability, and is commonly used in mixed-voltage FPGA interfaces.