Infineon Technologies CYUSB3035-BZXI

Overview

CYUSB3035-BZXI from Infineon is a USB 3.0/2.0 SuperSpeed controller IC with ARM926EJ-S core (200 MHz), 512-KB SRAM, and integrated 5-Gbps USB PHY compliant with PIPE 3.0. It supports HS-OTG, 32 physical endpoints, SD 3.0/eMMC 4.41, dual SDIO 3.0 ports, and programmable GPIF II (100 MHz, 8/16-bit). Used in USB-attached storage, video capture cards, and industrial cameras.

For engineers reviewing the CYUSB3035-BZXI datasheet, CYUSB3035-BZXI pinout, CYUSB3035-BZXI application, or CYUSB3035-BZXI equivalent, key selection criteria include USB 3.0 PHY compliance, GPIF II configurability, embedded SRAM size, SD/MMC controller capability, and ultra-low-power core power-down mode (≤60 µA).

Technical Context

The CYUSB3035-BZXI integrates a full-featured USB 3.0 peripheral/host controller with dedicated hardware blocks for SD/MMC, I2S (transmitter only), UART (up to 4 Mbps), SPI master (33 MHz), and I2C master (1 MHz). Its ARM926EJ-S CPU runs at 200 MHz and manages all interface controllers via shared memory-mapped registers.

GPIF II provides deterministic, software-configurable logic-level interfacing-supporting asynchronous/synchronous SRAM, slave FIFO, and custom state machines-with timing validated up to 100 MHz and PCLK jitter ≤15 ps RMS. The device implements independent power domains: 1.2-V core, and I/O rails configurable from 1.8 V to 3.3 V for UART/SPI/I2S.

Key Specifications

Pinout & Package

Package: 10-mm × 10-mm, 0.8-mm pitch Pb-free BGA (121-ball, 11×11 array). Pinout validated per Infineon datasheet Rev. *K (2023-03-21), Section 17–18.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CYUSB3033-BZXI and CYUSB3023-BZXI, the CYUSB3035-BZXI uniquely combines 512-KB SRAM, dual SDIO 3.0, and hardware RAID-making it the sole option for USB-based embedded storage systems requiring local redundancy and high-throughput video streaming.

Availability

CYUSB3035-BZXI is available at Aetrix Electronics and suitable for digital video camcorders, industrial cameras, and USB Disk on Module designs requiring stable component supply, long-term lifecycle assurance, and full production traceability.

Supply support for CYUSB3035-BZXI 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, sensing, connectivity, and security solutions for automotive, industrial, and consumer markets.

The EZ-USB™ FX3S product line delivers highly integrated, firmware-programmable USB 3.0 controllers optimized for embedded video, storage, and high-bandwidth peripheral bridging applications.

FAQ

Does CYUSB3035-BZXI support USB 3.0 host mode?

Yes, CYUSB3035-BZXI supports USB 3.0 host mode via its HS-OTG implementation compliant with OTG Supplement Version 2.0. It can enumerate and control USB 2.0 peripherals while operating as a SuperSpeed host for compatible devices, with full descriptor handling and endpoint management handled in firmware.

What clock sources are supported for CYUSB3035-BZXI?

CYUSB3035-BZXI accepts 19.2-MHz crystal input directly, or 19.2/26/38.4/52-MHz LVCMOS clock signals. The internal PLL generates required USB 3.0 (125 MHz), USB 2.0 (48 MHz), and system clocks. A 32-kHz watch crystal is optional for RTC and watchdog timer functions.

Can GPIF II be used simultaneously with SDIO and USB interfaces?

Yes, GPIF II operates independently from SDIO and USB interfaces. All three are managed by the ARM926EJ-S CPU via separate DMA channels and memory-mapped registers. Concurrent operation is confirmed in AN70707 (hardware design guidelines) and validated in reference designs like CYUSB3KIT-003.

Is external memory required for CYUSB3035-BZXI firmware execution?

No, CYUSB3035-BZXI contains 512-KB on-chip SRAM sufficient for full USB 3.0 stack, GPIF II firmware, and application logic. External memory is optional only for extended data buffers (e.g., video frame stores) or secondary boot images-not for core firmware execution.