USB5537B Datasheet, PDF (1/79 Pages) Microchip Technology – 7-Port SS/HS USB Hub Controller

USB5537B
7-Port SS/HS USB Hub Controller
General Description
The USB5537B hub is a 7-port SuperSpeed/Hi-Speed,
low-power, configurable hub controller family fully com-
pliant with the USB 3.0 Specification. The USB5537B
supports 5 Gbps SuperSpeed (SS), 480 Mbps Hi-
Speed (HS), 12 Mbps Full-Speed (FS) and 1.5 Mbps
Low-Speed (LS) USB signaling for complete coverage
of all defined USB operating speeds.
The USB5537B supports USB 2.0 speeds through its
USB 2.0 hub controller. The new SuperSpeed hub con-
troller (available on 4 of the 7 ports) operates in parallel
with the USB 2.0 controller, so the 5 Gbps SuperSpeed
data transfers are not affected by the slower USB 2.0
traffic.
The USB5537B supports battery charging on a per port
basis. On battery charging enabled ports, the devices
provide automatic USB data line handshaking. The
handshaking supports USB 1.2 Charging Downstream
Port (CDP), Dedicated Charging Port (DCP) and non-
USB 1.2 devices.
The USB5537B is configured for operation through
internal default settings, where custom configurations
are supported through an on-chip OTP ROM, an exter-
nal SPI ROM, or SMBus.
Product Features
• USB 3.0 compliant 5 Gbps, 480 Mbps, 12 Mbps
and 1.5 Mbps operation, USB pins are 5 V toler-
ant
- Integrated termination and pull-up/pull-down
resistors
• Four downstream USB 3.0 ports
• Three additional USB 2.0 ports for use cases
where SS is not required
• Supports battery charging of most popular battery
powered devices
- USB-IF Battery Charging rev. 1.2 support
(DCP & CDP)
- Apple Portable product charger emulation
- Blackberry charger emulation
- Chinese YD/T 1591-2006 charger emulation
- Chinese YD/T 1591-2009 charger emulation
- Supports additional portable devices
• Emulates portable/handheld native wall chargers
- Charging profiles emulate a handheld
device’s wall charger to enable fast charging
(minutes vs. hours)
• Enables charging from a mobile platform that is
off
• Support tablets’ high current requirements
• Optimized for low-power operation and low ther-
mal dissipation
• Vendor Specific Messaging (VSM) support for
firmware upload over USB
• Configuration via OTP ROM, SPI ROM, or SMBus
• On-chip 8051 µC manages VBUS, and other hub
signals
• 8 KB RAM, 32 KB ROM
• One Time programmable (OTP) ROM: 8 kbit
- Includes on-chip charge pump
• Single 25 MHz XTAL or clock input for all on-chip
PLL and clocking requirements
• Supports JTAG boundary scan
• 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
Software Features
• Compatible with Microsoft Windows 7, Vista, XP,
Mac OSX10.4+, and Linux Hub Drivers
 2012 - 2015 Microchip Technology Inc.
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