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GL3235
產品簡述

GL3235 is an USB 3.1 Gen1 Card Reader Controller.

 

GL3235 supports various types of memory cards, such as Secure DigitalTM (SD), SDHC, miniSD and microSD (T-Flash), MultiMediaCardTM (MMC), RS-MMC, MMCmicro and MMCmobile. It also supports high density memory cards (Capacity up to 2TB), such as SDXC, ultra high speed memory cards, SD3.0 UHS-I.

 

The GL3235 integrates a high speed 8051 microprocessor and a high efficiency hardware engine for the best data transfer performance between USB and various memory card interfaces. It supports ISP (In System Programming) for firmware upgrade from the external SPI Flash via USB port. It integrates 5V to 3.3V and 3.3V to 1.2V regulators and power MOSFETs which can reduce system BOM cost.


  • USB specification compliance
    • Comply with Universal Serial Bus 3.0 Specification rev. 1.0 (USB 3.0)
    • Comply with Universal Serial Bus Specification rev. 2.0 (USB 2.0)
    • Comply with USB Mass Storage Class Specification rev. 1.0
    • Support USB Mass Storage Class Bulk-Only Transport (BOT)
    • Support 1 device address and up to 3 endpoints: Control (0) / Bulk Data Read In (1) / Bulk Data Write Out (2)
    • Support 5 Gbps/SuperSpeed, 480 Mbps/high-speed, and 12 Mbps/full-speed transfer rates
  • Integrated USB building blocks
    • USB 3.1 Gen1/USB 2.0 and embedded Power-On Reset (POR)
  • Embedded high speed 8051 micro-controller
  • High efficiency hardware DMA engine improves data transfer performance between USB and flash card interfaces
  • Support Secure DigitalTM v1.0 / v1.1 / v2.0/ SDHC / SDXC (capacity up to 2TB)
  • Support Secure DigitalTM v3.0 UHS-I (Ultra High Speed): SDR12/SDR25/SDR50/DDR50/SDR104
  • Support HUAWEI Nano Memory Card
  • Support ISP (In System Programming) for firmware upgrade from the external SPI Flash via USB port
  • On-Chip power MOSFETs for supplying flash media card power
  • On-chip 5V to 3.3V and 3.3V to 1.2V regulator
  • Support Over-Current protection mechanism
  • Support USB 2.0 LPM (Link Power Management)
  • Support USB 3.0 LTM (Latency Tolerance Messaging)
  • Support USB 3.0 U1/U2/U3 low power link state
  • Support Intel Power Optimizer
  • Support Spread Spectrum Clock for SD to reduce EMI effect
  • Support dual USB 3.1 Gen1 interfaces for USB-C Charging SD cable application
  • Available in QFN52 pin package (6mmx6mm)

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