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PDF USB4640I Data sheet ( Hoja de datos )

Número de pieza USB4640I
Descripción USB 2.0 Hub and Flash Media Controller
Fabricantes SMSC 
Logotipo SMSC Logotipo



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USB4640/USB4640i
High Speed Inter-Chip (HSIC)
USB 2.0 Hub and Flash Media
Controller
PRODUCT FEATURES
Datasheet
General Description
Features
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 DigitalTM (SD)
– MultiMediaCardTM (MMC)
– Memory Stick® (MS)
– xD Picture CardTM (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 possible2.
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 CardTM support, please obtain a user license
from the xD-Picture Card License Office.
2.Host and media dependent.
„ 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 I2C® ROM or external SPI ROM
— Configures internal code using an external I2C 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
SMSC USB4640/USB4640i
DATASHEET
Revision 1.0 (06-09-09)
Free Datasheet http://www.datasheet4u.com/

1 page




USB4640I pdf
High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
Datasheet
List of Tables
Table 5.1 USB4640/USB4640i 48-Pin Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 6.1 USB4640/USB4640i Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 6.2 USB4640/USB4640i Buffer Type Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 7.1 Legend for Pin Reset States Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 7.2 USB4640/USB4640i Reset States Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 8.1 Internal Flash Media Controller Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 8.2 Hub Controller Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 8.3 Other Internal Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 8.4 Internal Flash Media Controller Extended Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 8.5 Port Map Register for Ports 1 & 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 8.6 Port Map Register for Port 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Table 8.7 nRESET Timing for EEPROM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Table 9.1 Crystal Circuit Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Table 10.1 Pin Capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Table 11.1 USB4640/USB4640i GPIO Usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
SMSC USB4640/USB4640i
5
DATASHEET
Revision 1.0 (06-09-09)
Free Datasheet http://www.datasheet4u.com/

5 Page





USB4640I arduino
High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
Datasheet
Chapter 3 Pin Configuration
GPIO1 / LED / TXD
nRESET
HSIC_IMP
TEST
VDD12
HSIC_DAT
HSIC_STROBE
XTAL2
XTAL1 (CLKIN)
PLLFILT
RBIAS
VDD33
37
38
39
40
41
42
43
44
45
46
47
48
SMSC
USB4640/40i
(Top View QFN-48)
Ground Pad
(must be connected to VSS)
24 SD_CMD / MS_D0 / xD_CLE
23 SD_D5 / MS_D1 / xD_ALE
22 xD_nWE
21 SD_CLK / MS_BS / xD_nWP
20 SD_D6 / MS_D7 / xD_D0
19 SD_D7 / MS_D6 / xD_D1
18 SD_D0 / MS_D4 / xD_D2
17 SD_D1 / MS_D5 / xD_D3
16 VDD33
15 CRFILT
14 GPIO15 / SD_nCD
13 GPIO6 / SD_WP / MS_SCLK / xD_D4
Indicates pins on the bottom of the device.
Figure 3.1 USB4640/USB4640i 48-Pin QFN
SMSC USB4640/USB4640i
11
DATASHEET
Revision 1.0 (06-09-09)
Free Datasheet http://www.datasheet4u.com/

11 Page







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