USB2642

The USB2642 is a USB 2.0 compliant, hi-speed huband card reader combo solution. This fully-integrated, single chip solution provides USB expansion and flash media reader/writer integration. The Microchip USB2642 provides an ultra fast interface between a USB host and today’s popular flash media formats. The controller allows read/write capability to flash media including the following:

• Secure DigitalTM (SD)
• SD High CapacityTM (SDHC)
• SD Extended CapacityTM (SDXC)
• MultiMediaCardTM (MMC)
• Embedded MultiMediaCard (eMMC)

The USB2642 offers a versatile, cost-effective and energy-efficient hub controller with 2 downstream USB 2.0 ports and a flash media interface. The flash media interface can support sustained transfer rates exceeding 35 MB/s.  Additionally, the USB2642 provides an I2CTM over USB bridge and an SD over USB bridge. The I2C bridge allows for control of any I2C slave device operating at 50KHz serial clock, while the SD bridge supports the use of SDIO cards.

*The  service is subject to Microchip's and requires a myMicrochip account.

Features
  • Ultra-fast Flash media reader/writer with two exposed downstream ports for external peripheral expansion
  • Optimizes footprint with an approximate 40% board space reduction compared to prior Microchip discrete devices
  • Reduces power consumption by approximately 30% versus alternative Microchip discrete solutions
  • Supports MultiMediaCard™ (MMC), Embedded MMC (eMMC) and SD cards
  • Internal code configurable using an external I2C™ EEPROM; support for external code using an SPI Flash EEPROM
  • Configurable software architecture supports customization for customer-specific applications and field upgradeable firmware
  • Ability to place the device away from the main board to deliver USB connectivity where it is needed within the system
  • RoHS-compliant 7x7mm,48-pin QFN package
  • Industrial temperature range (-40° to +85°C) options available
  • Comms Equipment
  • Servers
  • Printers
  • Digital TVs
  • Monitors
  • Media Players/Viewers
  • Gaming Consoles
  • Digital Photo Frames
  • Set-top Boxes
Parameter
Parameter Name Value Value
Description USB 2.0 Flash Media Controller with Hi-Speed USB Hub USB 2.0 Flash Media Controller with Hi-Speed USB Hub
Upstream Port USB 2.0 USB 2.0
USB Speed Hi Speed Hi Speed
Downstream Ports SD, MMC, eMMC SD, MMC, eMMC
MCU Interface USB USB
Tx Buffer Size (bytes) 3K 3K
Rx Buffer Size (bytes) 3K 3K
GPIOs 1 1
Op Voltage (V) 3.3 3.3
ROM I/F I2C I2C
Secure Digital/ MM cards 1 1
SD/MMC/ SDIO Ports 1 1
Logical Unit Num (LUN) 1 1
Temp Range Min (°C) -40 -40
Temp Range Max (°C) 85 85
Documents
USB2642 - USB 2.0 Hub and Flash Media Card Controller ComboData Sheets03/26/2015813KB
USB2642 Silicon ErrataErrata02/27/2015165KB
AN 26.2 - Implementation Guidelines for Microchip's USB 2.0 and USB 3.0 Hub DevicesAppNote08/11/20151203KB
AN18.15 - PCB Design Guidelines for QFN and DQFN PackagesAppNote10/16/2014205KB
AN26.21 - USB Device Design ChecklistAppNote08/10/2015386KB
USB2640 IBIS Model usb2640_q48_hstx.ibsIBIS06/18/2008116KB
USB Driver Manager (USBDM) Windows configuration tool for USB82642/2642Software Library07/23/2014
USB82642/2642 SDK for bridging I2C, GPIO, SD over USBSoftware Library07/31/2014
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
USB2642/ML48VQFN0C to +70CTRAY3.803.172.882.782.75
USB2642-I/ML48VQFN-40C to +85CTRAY4.753.963.603.483.44
USB2642-I/ML-SEU48VQFN-40C to +85CTRAY4.753.963.603.483.44
USB2642T/ML48VQFN0C to +70CT/R3.803.172.882.782.75
USB2642T-I/ML48VQFN-40C to +85CT/R4.753.963.603.483.44
USB2642T-I/ML-SEU48VQFN-40C to +85CT/R4.753.963.603.483.44
相关开发工具
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RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
USB2642-I/ML0.1295001.26923148VQFN7x7x0.9mmMatte Tine3
USB2642T-I/ML0.1295000.52800048VQFN7x7x0.9mmMatte Tine3
USB2642T/ML0.1295000.52800048VQFN7x7x0.9mmMatte Tine3
USB2642/ML0.1295001.26923148VQFN7x7x0.9mmMatte Tine3
USB2642-I/ML-SEU0.1295001.26923148VQFN7x7x0.9mmMatte Tine3
USB2642T-I/ML-SEU0.1295000.52800048VQFN7x7x0.9mmMatte Tine3
USB2642 - USB 2.0 Hub and Flash Media Card Controller Combo USB2642
USB2642 Silicon Errata USB2642
AN 26.2 USB2642
AN18.15 LAN9221
AN26.21 USB3347
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