|
|
Número de pieza | USB2514 | |
Descripción | USB 2.0 High-Speed 4-Port Hub Controller | |
Fabricantes | SMSC Corporation | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de USB2514 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
No Preview Available ! USB2514
USB 2.0 High-Speed
4-Port Hub Controller
www.DataSheet4U.com
PRODUCT FEATURES
General Description
The SMSC 4-Port Hub is low power, OEM configurable,
MTT (multi transaction translator) hub controller IC with
4 downstream ports for embedded USB solutions. The
4-port hub is fully compliant with the USB 2.0
Specification and will attach to an upstream port as a
Full-Speed Hub or as a Full-/High-Speed Hub. The 4-
Port Hub supports Low-Speed, Full- Speed, and High-
Speed (if operating as a High-Speed Hub) downstream
devices on all of the enabled downstream ports.
General Features
Hub Controller IC with 4 downstream ports
High-performance multiple transaction translator.
MultiTRAK™ Technology Provides one transaction
translator per port
Enhanced OEM configuration options available
through either a single serial i2C EEPROM, or
SMBus Slave Port
36-pin (6x6mm) and 48-Pin (7x7mm) QFN lead-free,
RoHS compliant packages
Footprint compatible with USB2513 and USB2512
(36-pin QFN) to provide designers with flexibility
regarding the quantity of USB expansion ports
utilized without redesign
Hardware Features
Low power operation
Full Power Management with individual or ganged
power control of each downstream port
On-chip Power On Reset (POR)
Internal 1.8V Voltage Regulator
Fully integrated USB termination and Pull-up/Pull-
down resistors
On Board 24MHz Crystal Driver or External
24/48MHz clock input
USB host/device speed indicator. Per-port 3-color
LED drivers that indicate the speed of USB host and
device connection - hi-speed (480 Mbps), full-speed
(12 Mbps), low-speed (1.5 Mbps) (48-pin QFN)
Enhanced EMI rejection and ESD protection
performance
OEM Selectable Features
Customize Vendor ID, Product ID, and Device ID
Select whether the hub is part of a compound device
(When any downstream port is permanently
hardwired to a USB peripheral device, the hub is part
of a compound device)
Datasheet
Flexible port mapping and disable sequence. Ports
can be disabled/reordered in any order to support
multiple product SKUs. Hub will automatically reorder
the remaining ports to match the Host controller's
numbering scheme
Programmable USB differential-pair pin location
Ease PCB layout by aligning USB signal lines directly
to connectors
Programmable USB signal drive strength. Recover
USB signal integrity due to compromised system
environment using 4-level driving strength resolution
Select the presence of a permanently hardwired USB
peripheral device on a port by port basis
Configure the delay time for filtering the over-current
sense inputs
Configure the delay time for turning on downstream
port power
Configure the polarity of downstream port power
control signals
Indicate the maximum current that the 4-port hub
consumes from the USB upstream port
Indicate the maximum current required for the hub
controller
Supports Custom String Descriptor up to 31
characters in length for:
– Product String
– Manufacturer String
– Serial Number String
Pin Selectable Options for Default Configuration
— Select Downstream Ports as Non-Removable Ports
— Select Downstream Ports as Disabled Ports
— Select Downstream Port Power Control and Over-
Current Detection on a Ganged or Individual Basis
— Select Downstream Port Power Control Polarity
— Select USB Signal Drive Strength
— Select USB Differential Pair Pin location
— Select on-chip or off-chip voltage regulator mode
Applications
LCD monitors and TVs
Multi-function USB peripherals
PC mother boards
Set-top boxes, DVD players, DVR/PVR
Printers and scanners
PC media drive bay
Portable hub boxes
Mobile PC docking
Embedded systems
SMSC USB2514
DATASHEET
Revision 1.92 (05-08-07)
1 page USB 2.0 High-Speed 4-Port Hub Controller
Datasheet
List of Tables
Table 3.1 USB2514 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 3.2 SMBus or EEPROM Interface Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 3.3 USB2514 Power, Ground, No Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 3.4 USB2514 Buffer Type Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 4.1 36 QFN and 48 QFN Feature Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 4.2 Internal EEPROM and SMBus Register Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 4.3 Reset_N Timing for Default/Strap Option Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 4.4 Reset_N Timing for EEPROM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 4.5 Reset_N Timing for SMBus Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 5.1 DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Table 5.2 Pin Capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
SMSC USB2514
5
DATASHEET
Revision 1.92 (05-08-07)
5 Page USB 2.0 High-Speed 4-Port Hub Controller
Datasheet
Table 3.1 USB2514 Pin Descriptions (continued)
SYMBOL
PRTPWR_POL
OCS[4:1]_N
36 QFN 48 QFN
n/a 38
21 28
19 26
17 20
13 16
BUFFER
TYPE
DESCRIPTION
I/O12
IPU
BOOST[1:0], If this strap is enabled by package and
configuration settings (see Table 3.2), this pin will be
sampled at RESET_N negation to determine if all PHY
ports (upstream and downstream) operate at a normal
or boosted electrical level. Also, the active state of the
LEDs will be determined as follows:
See for BOOST values: Section 4.3.1.26, "Register F6h:
Boost_Up (Reset = 0x00)" and Section 4.3.1.27,
"Register F8h: Boost_4:0 (Reset = 0x00)".
BOOST[1:0] = BOOST_IOUT[1:0]
BOOST[1:0] = ‘00’,
LED_B2_N is active high,
LED_B1_N is active high.
BOOST[1:0] = ‘01’,
LED_B2_N is active high,
LED_B1_N is active low.
BOOST[1:0] = ‘10’,
LED_B2_N is active low,
LED_B1_N is active high.
BOOST[1:0] = ‘11’,
LED_B2_N is active low,
LED_B1_N is active low.
Port Power Polarity strapping
Port Power Polarity strapping determination for the
active signal
polarity of the [4:1]PRTPWR pins.
While RESET_N is asserted, the logic state of this pin
will (through the use of internal combinatorial logic)
determine the active state of the [4:1]PRTPWR pins in
order to ensure that downstream port
power is not inadvertently enabled to inactive ports
during a hardware reset.
When RESET_N is negated, the logic value will be
latched internally, and will retain the active signal polarity
for the PRTPWR[4:1] pins.
‘1’ = PRTPWR[4:1]_P/N pins have an active ‘high’
polarity
‘0’ = PRTPWR[4:1]_P/N pins have an active ‘low’
polarity
Warning: Active Low port power controllers may glitch
the downstream port power when system power is first
applied. Care should be taken when designing with
active low components!
Note:
If PRTPWR_POL is not an available pin on the
package, the hub will support active high
power controllers only!
Over Current Sense
Input from external current monitor indicating an over-
current condition.
{Note: Contains internal pull-up to 3.3V supply}
SMSC USB2514
11
DATASHEET
Revision 1.92 (05-08-07)
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet USB2514.PDF ] |
Número de pieza | Descripción | Fabricantes |
USB2512 | USB 2.0 Hi-Speed Hub Controller | SMSC |
USB2512A | USB 2.0 Hi-Speed Hub Controller | SMSC |
USB2512B | USB 2.0 Hi-Speed Hub Controller | SMSC |
USB2512B | USB 2.0 Hi-Speed Hub Controller | Microchip |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |