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USB3318のメーカーはSMSCです、この部品の機能は「Hi-Speed USB Transceiver」です。 |
部品番号 | USB3318 |
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部品説明 | Hi-Speed USB Transceiver | ||
メーカ | SMSC | ||
ロゴ | |||
このページの下部にプレビューとUSB3318ダウンロード(pdfファイル)リンクがあります。 Total 8 pages
USB3318
Hi-Speed USB Transceiver
with 1.8V-3.3V ULPI Interface -
13MHz Reference Clock
PRODUCT FEATURES
Data Brief
USB-IF “Hi-Speed” compliant to the Universal Serial
Bus Specification Rev 2.0
Interface compliant with the ULPI Specification
revision 1.1 as a Single Data Rate (SDR) PHY
1.8V to 3.3V IO Voltage (+/- 10%)
SMSC flexPWRTM Technology
— Low current design ideal for battery powered
applications
— “Sleep” mode tri-states all ULPI pins and places the
part in a low current state
Supports FS pre-amble for FS hubs with a LS device
attached (UTMI+ Level 3)
Supports HS SOF and LS keep-alive pulse
Includes full support for the optional On-The-Go
(OTG) protocol detailed in the On-The-Go
Supplement Revision 1.0a specification
Supports the OTG Host Negotiation Protocol (HNP)
and Session Request Protocol (SRP)
Allows host to turn VBUS off to conserve battery
power in OTG applications
Support OTG monitoring of VBUS levels with internal
comparators
“Wrapper-less” design for optimal timing performance
and design ease
— Low Latency Hi-Speed Receiver (43 Hi-Speed clocks
Max) allows use of legacy UTMI Links with a ULPI
bridge
Internal 5V cable short-circuit protection of ID, DP
and DM lines to VBUS or ground
13MHz Reference Clock operation
— 0 to 3.6V input drive tolerant
— Able to accept “noisy” clock sources
Internal low jitter PLL for 480MHz Hi-Speed USB
operation
Internal detection of the value of resistance to ground
on the ID pin
Integrated battery to 3.3V LDO regulator
— 2.2uF bypass capacitor
— 100mV dropout voltage
Integrated ESD protection circuits
— Up to +-15kV without any external devices
Carkit UART mode for non-USB serial data transfers
Industrial Operating Temperature -40°C to +85°C
Packaging Options
— 24 pin QFN lead-free RoHS compliant package
(4 x 4 x 0.90 mm height)
Applications
The USB3318 is targeted for any application where a Hi-
Speed USB connection is desired and when board
space, power, and interface pins must be minimized.
The USB3318 is well suited for:
Cell Phones
PDAs
MP3 Players
GPS Personal Navigation
Scanners
External Hard Drives
Digital Still and Video Cameras
Portable Media Players
Entertainment Devices
Printers
Set Top Boxes
Video Record/Playback Systems
IP and Video Phones
Gaming Consoles
POS Terminals
SMSC USB3318
PRODUCT PREVIEW
Revision 1.3 (11-02-07)
Free Datasheet http://www.datasheet4u.com/
1 Page Hi-Speed USB Transceiver with 1.8V-3.3V ULPI Interface - 13MHz Reference Clock
General Description
The USB3318 is a highly integrated Hi-Speed USB 2.0 Transceiver (PHY) that supports systems
architectures based on a 13MHz reference clock. It is designed to be used in both commercial and
industrial temperature applications.
The USB3318 meets all of the electrical requirements to be used as a Hi-Speed USB Host, Device,
or an On-the-Go (OTG) device. In addition to the supporting USB signaling the USB3318 also provides
USB UART mode
USB3318 uses the industry standard UTMI+ Low Pin Interface (ULPI) to connect the USB PHY to the
Link. The industry standard ULPI interface uses a method of in-band signaling and status byte transfers
between the Link and PHY, to facilitate a USB session. By using in-band signaling and status byte
transfers the ULPI interface requires only 12 pins.
The USB3318 uses SMSC’s “wrapper-less” technology to implement the ULPI interface. This “wrapper-
less” technology allows the PHY to achieve a low latency transmit and receive time. SMSC’s low
latency transceiver allows an existing UTMI Link to be reused by adding a UTMI to ULPI bridge. By
adding a bridge to the ASIC the existing and proven UTMI Link IP can be reused.
CPEN
VBUS
ID
DP
DM
OTG
Hi-Speed
USB
Transceiver
Carkit
REFCLK
Low Jitter
Integrated
PLL
ULPI
Registers
and State
Machine
BIAS
RBIAS
Integrated
Power
Management
ULPI Interface
RESETB
VBAT
VDD33
VDD18
VDDIO
STP
NXT
DIR
CLKOUT
DATA[7:0]
Figure 1 USB3318 Block Diagram
The USB3318 is designed to run with a 13MHz reference clock. By using a reference clock from the
Link the USB3318 is able to remove the cost of a crystal reference from the design.
The USB3318 includes a integrated 3.3V LDO regulator to generate its own supply from power applied
at the VBAT pin. The voltage on the VBAT pin can range from 3.1 to 5.5V. The regulator dropout
voltage is less than 100mV which allows the PHY to continue USB signaling when the voltage on
VBAT drops to 3.1V. The USB transceiver will continue to operate at lower voltages, although some
parameters may be outside the limits of the USB specifications. If the user would like to provide a 3.3V
supply to the USB3318, the VBAT and VDD3.3 pins should be connected together.
The USB3318 also includes integrated pull-up resistors that can be used for detecting the attachment
of a USB Charger. By sensing the attachment to a USB Charger, a product using the USB3318 can
charge its battery at more than the 500mA allowed when charging from a USB Host.
SMSC USB3318
3
PRODUCT PREVIEW
Revision 1.3 (11-02-07)
Free Datasheet http://www.datasheet4u.com/
3Pages 19
20
21
22
23
24
FLAG
Hi-Speed USB Transceiver with 1.8V-3.3V ULPI Interface - 13MHz Reference Clock
Table 1 USB3318 Pin Description (continued)
Output,
N/A Controls the direction of the data bus.
CMOS
When the PHY has data to transfer to the
Link, it drives DIR high to take ownership
of the bus. When the PHY has no data to
transfer it drives DIR low and monitors
DIR the bus for commands from the Link.
Input,
High The Link asserts STP for one clock cycle
CMOS
to stop the data stream currently on the
bus. If the Link is sending data to the
PHY, STP indicates the last byte of data
STP was on the bus in the previous cycle.
VDD1.8
RESETB
REFCLK
Power
Input,
CMOS,
Input,
CMOS
N/A External 1.8V Supply input pin. This pad
needs to be bypassed with a 0.1uF
capacitor to ground, placed as close as
possible to the USB3318.
N/A When low, the part is suspended with all
of the I/O tri-stated. When high the
USB3318 will operate as a normal ULPI
device.
N/A 13MHz Reference Clock input.
RBIAS
Analog,
CMOS
N/A Rbias pin. This pin requires an 8.06kΩ
(±1%) resistor to ground, placed as close
as possible to the USB3318.
GND
Ground
N/A Ground.
QFN only: The flag should be connected
to the ground plane with a via array
under the exposed flag. This is the main
ground for the IC.
Revision 1.3 (11-02-07)
6
PRODUCT PREVIEW
SMSC USB3318
Free Datasheet http://www.datasheet4u.com/
6 Page | |||
ページ | 合計 : 8 ページ | ||
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PDF ダウンロード | [ USB3318 データシート.PDF ] |
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