SMSC USB464 - Manual

SMSC USB4640/USB4640i DATASHEET Revision 1.0 (06-01-09)
PRODUCT FEATURES
Datasheet
USB4640/USB4640i
High Speed Inter-Chip USB
2.0 Hub and Flash Media
Controller
General Description
The SMSC USB4640/USB4640i is a Hi-Speed HSIC USB hub
and card reader combo solution with an upstream port
compliant to HSIC 1.0, a supplement to the USB 2.0
specification. The two downstream ports are compliant with the
USB 2.0 specification.
High Speed Inter-Chip (HSIC) is a digital interconnect bus that
enables the use of USB technology as a low-power chip-to-chip
interconnect at speeds up to 480 Mb/s. The HSIC interface is
an industry standard 2-pin digital interface which uses standard
USB software. The SMSC USB4640/USB4640i provides an
ultra fast interface between an HSIC enabled host and today’s
popular flash media formats. The controller allows read/write
capability to flash media from the following families:
– Secure Digital TM (SD)
– MultiMediaCard TM (MMC)
– Memory Stick ® (MS)
– xD Picture Card TM (xD) 1
The USB4640/USB4640i offers a versatile, cost-effective, and
energy-efficient hub controller with 2 downstream USB 2.0
ports. This combo solution leverages SMSC’s innovative
technology that delivers industry-leading data throughput in
mixed-speed USB environments. Average sustained transfer
rates exceeding 35 MB/s are possible 2 .
Highlights
„
Upstream HSIC port and 2 exposed Hi-Speed USB 2.0
downstream ports for external peripheral expansion
„
The dedicated flash media reader is internally attached to a
3rd downstream port of the hub as a USB Compound
Device
— a single or multiplexed flash media reader interface
„
PortMap
— Flexible port mapping and port disable sequencing supports
multiple platform designs
„
PortSwap
— Programmable USB differential-pair pin locations eases PCB
design by aligning USB signal traces directly to connectors
„
PHYBoost
— Programmable USB transceiver drive strength recovers signal
integrity
1.For xD-Picture Card TM support, please obtain a user license
from the xD-Picture Card License Office.
2.Host and media dependent.
Features
„
Compliance with the following flash media card
specifications SD 2.0 / MMC 4.2 / MS 1.43 / MS-Pro 1.02 /
MS-Pro-HG 1.01 / MS-Duo 1.10 / xD 1.2
„
Low-power digital HSIC interface offers a replacement for
onboard host and device connection for analog USB bus
cable
„
HSIC interface enables printers, mobile PCs, ultra-mobile
PCs, and cell phone products to reduce the total power
budget while taking full advantage of USB connectivity and
compatibility with existing USB drivers and software
„
External 1.2 V reference allows upstream and downstream
HSIC links to use the same voltage reference
„
Supports a single external 3.3 V supply source; internal
regulators provide 1.8 V internal core voltage for additional
bill of materials and power savings
„
The transaction translator (TT) in the hub supports operation
of Full-Speed and Low-Speed peripherals
„
9 K RAM | 64 K on-chip ROM
„
Enhanced EMI rejection and ESD protection performance
„
Hub and flash media reader/writer configuration from a
single source: External I 2 C ® ROM or external SPI ROM
— Configures internal code using an external I 2 C EEPROM
— Supports external code using an SPI Flash EEPROM
— Customizable vendor ID, product ID, and language ID if using
an external EEPROM
„
Up to 9 configurable GPIOs for special functions
„
The USB4640 supports the commercial temperature range
of 0°C to +70°C
„
The USB4640i supports the industrial temperature range of
-40°C to +85°C
„
48-pin QFN lead-free, RoHS compliant package (7x7 mm)
Applications
„
3G/4G handsets, smartphones, cell phones, and other
mobile devices
„
Desktop and mobile PCs
„
Printers
„
GPS navigation systems
„
Media players/viewers
„
Consumer A/V
„
Set-top boxes
Industrial products