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PDF USB5532B Data sheet ( Hoja de datos )
| Número de pieza | USB5532B | |
| Descripción | 2-Port SS/HS USB Hub Controller | |
| Fabricantes | Microchip | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de USB5532B (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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USB5532B
2-Port SS/HS USB Hub Controller
General Description
The USB5532B hub is a 2-port SuperSpeed/Hi-Speed,
low-power, configurable hub controller family fully com-
pliant with the USB 3.0 Specification. The USB5532B
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 USB5532B supports USB 2.0 speeds through its
USB 2.0 hub controller. The new SuperSpeed hub con-
troller 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 USB5532B 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 USB5532B 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
• Two downstream USB 3.0 ports
• 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.
DS00001679C-page 1
1 page  
USB5532B
1.3 Configurable Features
The USB5532B hub controller provides a default configuration that is sufficient for most applications. When initialized
in the default configuration, the following features may be configured:
• Downstream non-removable ports, where the hub will automatically report as a compound device
• Downstream disabled ports
• Downstream port power control and over-current detection on a ganged or individual basis
• USB signal drive strength
• USB differential pair pin location
The USB5532B hub controllers can alternatively be configured by OTP or as an SMBus slave device. When configured
by an OTP or over SMBus, the following configurable features are provided:
• Support for compound devices on a port-by-port basis
• Selectable over-current sensing and port power control on an individual or ganged basis to match the circuit board
component selection
• Customizable vendor ID, product ID, and device ID
• Configurable delay time for filtering the over-current sense inputs
• Indication of the maximum current that the hub consumes from the USB upstream port
• Indication of the maximum current required for the hub controller
• Custom string descriptors (up to 30 characters): Product, manufacturer, and serial number
DS00001679C-page 5
2012 - 2015 Microchip Technology Inc.
5 Page 
USB5532B
TABLE 3-1: USB5532B PIN DESCRIPTIONS (CONTINUED)
Symbol
Buffer Type
Description
SM_CLK
SM_DAT
(14) NC
I/O12
I/O12
-
SMBus Clock
SMBus Data Pin
No connect pins
DIGITAL AND POWER
(4) VDD33
(8) VDD12
VSS
3.3 V Power
1.25 V Power
Ground Pad
Note 3-1
This exposed pad is the device’s only connection to VSS and the
primary thermal conduction path. Connect to an appropriate via field.
The PRT_PWR[2:1] pins can optionally provide additional configuration strap functions to
enable/disable the associated port and configure its battery charging capabilities. Configuration strap
values are latched on device reset. Table 3-2 details the functions associated with the various strap
settings.
Strapping features are enabled by default and can be optionally disabled via the Pro-Touch software
programming tool. For additional information on the Pro-Touch programming tool, contact your local
sales representative.
Strapping functions are not supported for designs that support OCS but not power switching.
TABLE 3-2: PRT_PWR[2:1] CONFIGURATION STRAP STATES
PRT_PWR[2:1]
Strap Setting
Port State
No Pull-Up or Pull-Down
Pull-Down:
<10 kto VSS
Pull-Up:
<10 kand >1 k to VDD33
Enabled
Disabled
Enabled
Battery Charging
Disabled
N/A
Enabled
Note 3-2
Note 3-3
Note 3-4
The SPI_DO pin provides an additional SPI_SPD_SEL configuration strap function. SPI_SPD_SEL
selects between the 30MHz SPI Mode when pulled-down to ground (default) and the 60MHz SPI
Mode when pulled-up to VDD33. The SPI_SPD_SEL strap value is latched on Power-On Reset
(POR) or RESET_N deassertion.
The OCS[2:1] pins can optionally provide additional configuration strap functions. To set the
associated port into the non-removable state, the OCS pin must be configured with a pull-down
(<10 k to VSS). Otherwise, the port will be configured in the removable state. Configuration strap
values are latched on device reset.
Strapping features are enabled by default and can be optionally disabled via the Pro-Touch software
programming tool. For additional information on the Pro-Touch programming tool, contact your local
sales representative.
Strapping functions are not supported for designs that support OCS but not power switching.
This pin has an internal pull-up only in the -6080 version. The internal pull-up is only active after the
SMBus mode (Legacy/Advanced) configuration strap has been sampled at POR or reset. The -5000
version is an “I” type buffer.
2012 - 2015 Microchip Technology Inc.
DS00001679C-page 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet USB5532B.PDF ] | |
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