Infineon Technologies CY7C4141KV13-633FCXI

Overview

CY7C4141KV13-633FCXI from Cypress Semiconductor is a 144-Mbit QDR™-IV HP SRAM with 4M × 36 organization, 633 MHz maximum operating frequency, 5.0-cycle read latency, and dual independent DDR data ports supporting concurrent read/write operations. It delivers 1266 MT/s total random transaction rate and integrates on-chip ECC, bus inversion, and JTAG 1149.1 test access for high-reliability networking and packet buffering applications.

For engineers reviewing the CY7C4141KV13-633FCXI datasheet, CY7C4141KV13-633FCXI pinout, CY7C4141KV13-633FCXI application, or CY7C4141KV13-633FCXI equivalent, key selection criteria include its 4M × 36 configuration, 633 MHz clock support, HSTL/SSTL/POD I/O compatibility, on-die termination programmability, and per-bit deskew training capability.

Technical Context

The device implements a true dual-port architecture with physically separate bidirectional data buses (Port A and Port B), each controlled by a shared DDR address/command bus clocked by CK/CK#. Address sampling alternates between rising (Port A) and falling (Port B) edges of CK, enabling time-multiplexed command arbitration without internal contention.

It supports three I/O signaling standards-HSTL/SSTL at 1.2 V/1.25 V and POD at 1.1 V/1.2 V-with programmable ODT for clock, address/command, and data inputs, and uses ZQ-based internal output impedance calibration to maintain signal integrity across process, voltage, and temperature variations.

Key Specifications

Pinout & Package

Package: 361-ball Fine-Pitch Chip Array Ball Grid Array (FCBGA), 21 mm × 21 mm, Pb-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance QDR SRAM applications.

Compared with CY7C4141KV13-633FCXI, the -667FCXI variant offers higher throughput at increased power and layout complexity, while the AS7C3256A-15JCIN provides basic storage at lower cost but lacks dual-port concurrency, ECC, and high-speed DDR signaling essential for modern packet processing.

Availability

CY7C4141KV13-633FCXI is available at Aetrix Electronics and suitable for high-speed packet buffering, network switch fabric memory, telecom baseband processing, and radar signal processing requiring stable component supply and long-term industrial availability.

Supply support for CY7C4141KV13-633FCXI 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 QDR-IV HP SRAM product line targets ultra-low-latency, high-throughput memory subsystems in packet-switched infrastructure where deterministic timing and soft-error resilience are mandatory.

FAQ

What is the difference between CY7C4141KV13-633FCXI and CY7C4121KV13-633FCXI?

CY7C4141KV13-633FCXI is organized as 4M × 36 (144 Mbit), using 21 address bits and supporting 36-bit data paths per port. CY7C4121KV13-633FCXI is 8M × 18 (also 144 Mbit) with 22 address bits and 18-bit data paths. Both share identical timing, signaling, and feature sets but differ in bus width and pin mapping for DQA/DQB and associated clocks.

Does CY7C4141KV13-633FCXI require external termination resistors?

No. The device includes programmable on-die termination (ODT) for clock, address/command, and data inputs, calibrated via the ZQ pin against an external 240 Ω reference resistor. External termination is optional and only used if system-level signal integrity analysis indicates additional tuning is needed.

How does the bus inversion feature reduce power consumption?

Bus inversion compares the number of logic-1 bits on the address or data bus to a threshold (typically half the bus width). When more than half the bits would toggle, the bus value is inverted and the DINVA/DINVB or AINV flag is asserted. This cuts switching activity-and thus dynamic power-by up to 50% on highly active buses.

Can CY7C4141KV13-633FCXI operate with only one data port enabled?

Yes. Port A and Port B are fully independent. Either port can be disabled using LDA#/LDB# control signals while the other remains active. Internal operations continue uninterrupted, and unused port pins may be left unconnected or terminated per board-level signal integrity requirements.