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GL3232
產品簡述

GL3232 is an USB 3.1 Gen1 to SD 3.0 Single LUN Memory Card Reader Controller.

 

GL3232 supports various types of SD memory cards, such as Secure DigitalTM (SD), SDHC, miniSD and microSD (T-Flash). It supports high density memory cards (Capacity up to 2TB), such as SDXC, ultra high speed memory cards SD3.0 UHS-I. GL3232 also supports SANDISK EXTREME® 160 MB/s microSD UHS-I CARD.

 

The GL3232 integrates a high speed 8051 microprocessor and a high efficiency hardware engine for the best data transfer performance between USB and SD memory card interface. It supports ISP (In System Programming) for firmware upgrade from the external SPI Flash via USB port. It also integrates LDO, DC-DC and power MOSFETs which can reduce the system BOM cost and improve power efficiency.


  • USB specification compliance
    • Comply with Universal Serial Bus 3.1 Specification (USB 3.1 GEN1)
    • 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
    • SuperSpeed USB/USB 2.0 transceiver macro (UTM), Serial Interface Engine (SIE), 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 DDR200 speed mode to enhance the UHS-I performance
  • Support SANDISK EXTREME® 160 MB/s microSD UHS-I CARD
  • 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
  • On-chip 5V to 1.2V DC-DC to improve the power efficiency.
  • Support Over-Current protection mechanism
  • Support USB 2.0 LPM (Link Power Management)
  • Support USB 3.1 Gen 1 U1/U2/U3 low power link state
  • Support Latency Tolerance Messaging
  • Support remote wakeup function
  • Support Intel Power Optimizer
  • Support Spread Spectrum Clock for SD to reduce EMI effect
  • Available in QFN48 pin package (6x6mm)

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