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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