7-port controller speeds transition to USB 3.0

7-port controller speeds transition to USB 3.0


Ismini Scouras 8/11/2011 11:53 AM EDT

SMSC launched the USB553x family of USB 3.0 hub controllers, consisting of 7-port and 4-port offerings. 

Dubbed the USB5537 and USB5534, these SuperSpeed USB hubs are well-suited for USB port expansion in docking stations, port replicators, all-in-one monitors, as well as peripheral hubs for use with ultra-mobile PCs, tablets and notebooks that are outfitted with SuperSpeed USB host connectivity.

Key highlights:

  • USB 3.0 compliant 5 Gbps, 480 Mbps, 12 Mbps and 1.5 Mbps operation, USB pins are 5 V tolerant
  • Four downstream USB 3.0 ports (which also support USB 2.0)
  • Three additional USB 2.0 ports for non-removable devices (USB5537 only)
  • Optimized for low-power operation and low thermal dissipation
  • Configuration via OTP ROM, SPI ROM, or SMBus
  • On-chip 8051 µC manages GPIOs, VBUS, and other hub signals
  • 8 K RAM, 32 K ROM
  • Power Management capability on the GPIO/LED pins
  • One Time programmable (OTP) ROM: 8 kbit
    • Includes on-chip charge pump
    • Values written via JTAG
  • Single 25 MHz XTAL or clock input for all on-chip PLL and clocking requirements
  • Supports JTAG boundary scan
  • Supports USB 2.0 Link Power Management
  • PHYBoost (USB 2.0)
    • Selectable drive strength for improved signal integrity
  • VariSense (USB 2.0)
    • Controls the receiver sensitivity enabling four programmable levels of USB signal receive sensitivity
  • IETF RFC 4122 compliant 128-bit UUID
  • Supports Battery Charging (BC1.2) and Apple® Charging
  • Minimized Bill of Material (BOM)
  • Optimized for 2-layer PCB implementation

Pricing and availability: Samples are available today and range in price from $3.30 (commercial grade) to $4.45 (industrial grade) per unit.  Pricing is based on 1K quantities.

Data briefs: USB5534 and USB5537



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