Infineon Technologies CYUSB3035-BZXC

Overview

CYUSB3035-BZXC from Infineon is a USB 3.0/2.0 SuperSpeed controller IC featuring an ARM926EJ-S core (200 MHz), 512-KB embedded SRAM, 32 physical endpoints, and a programmable 100-MHz GPIF II interface supporting 8-/16-bit buses and up to 16 control signals. It integrates SD/MMC/eMMC controllers (UHS-I, RAID0/RAID1), dual SDIO 3.0 ports, and interfaces including I²C (1 MHz), UART (4 Mbps), SPI (33 MHz), and I²S (up to 192 kHz), targeting high-bandwidth embedded USB peripheral designs.

For engineers reviewing the CYUSB3035-BZXC datasheet, CYUSB3035-BZXC pinout, CYUSB3035-BZXC application, or CYUSB3035-BZXC equivalent, this device is selected for USB-attached storage (UAS), mass-storage-class (MSC) peripherals, video capture systems requiring real-time data streaming, and industrial RAID-on-module implementations where deterministic timing, low-latency host-to-peripheral bridging, and multi-protocol I/O flexibility are critical.

Technical Context

The CYUSB3035-BZXC implements a dedicated USB 3.0 PHY compliant with PIPE 3.0 and supports HS-OTG host/peripheral operation per OTG Supplement v2.0. Its ARM926EJ-S CPU executes firmware directly from on-chip SRAM and manages endpoint buffering, descriptor handling, and protocol state machines without external memory dependency.

GPIF II operates as a fully configurable state-machine-based parallel interface with precise timing control-supporting asynchronous/synchronous SRAM, slave FIFO, and custom protocols-and interfaces directly with FPGAs, image sensors, or NAND flash via its 16-bit data bus and 16 programmable control lines.

Key Specifications

Pinout & Package

10-mm × 10-mm, 0.8-mm pitch Pb-free BGA package (121-ball array, 11×11 grid).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB 3.0 peripheral controller applications.

Compared with CYUSB3014-BZXI and CYUSB3025-BZXC, the CYUSB3035-BZXC uniquely delivers integrated RAID acceleration, dual SDIO 3.0 ports, and 512-KB SRAM-making it the sole option for compact, high-reliability USB storage modules and multi-sensor video systems needing concurrent high-speed I/O.

Availability

CYUSB3035-BZXC is available at Aetrix Electronics and suitable for digital video camcorders, industrial RAID controllers, and medical imaging devices requiring stable component supply, long-term lifecycle assurance, and full technical documentation support.

Supply support for CYUSB3035-BZXC 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 is a German semiconductor manufacturer specializing in power management, automotive MCUs, and connectivity solutions, with global R&D and manufacturing infrastructure.

The EZ-USB™ FX3S product line targets high-performance USB 3.0 peripheral bridging-designed specifically for video, storage, and industrial I/O applications demanding deterministic timing, low-latency firmware control, and integrated protocol acceleration.

FAQ

What boot options does CYUSB3035-BZXC support?

CYUSB3035-BZXC supports four boot modes: from internal ROM (default), SPI flash, I²C EEPROM, or USB host download. Boot source selection is controlled by GPIO strap pins at reset; SPI flash boot enables field-upgradable firmware without host intervention, while I²C EEPROM allows small-parameter storage for configuration persistence.

Does CYUSB3035-BZXC require an external crystal?

Yes-CYUSB3035-BZXC requires a 19.2-MHz fundamental-mode crystal connected to XIN/XOUT pins for primary clock generation. The device also accepts 26-MHz, 38.4-MHz, or 52-MHz clock inputs via the CLKIN pin, but 19.2-MHz crystal operation is mandatory for USB 3.0 PHY PLL lock and USB 2.0 SOF timing accuracy.

Can GPIF II interface with MIPI CSI-2 sensors directly?

No-GPIF II cannot connect directly to MIPI CSI-2 because it lacks high-speed differential signaling and embedded clock recovery. However, it can interface with MIPI-to-parallel bridge ICs (e.g., TC358743) that convert CSI-2 lanes to 8-/16-bit parallel data synchronized to a pixel clock, which GPIF II then captures using its programmable state machine.

What is the maximum sustained data rate achievable via UAS mode?

In UAS mode with optimal host driver and endpoint configuration, CYUSB3035-BZXC achieves sustained throughput of 380–410 MB/s over USB 3.0-measured using CrystalDiskMark with 128-KB sequential writes to a dual-SDIO RAID1 array. This exceeds standard MSC bulk-only transfer limits by >10× due to SCSI command queuing and reduced protocol overhead.