USB3450 Datasheet PDF - Microchip
| Part Number | USB3450 | |
| Description | Hi-Speed USB Host or Device PHY | |
| Manufacturers | Microchip | |
| Logo |  |
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There is a preview and USB3450 download ( pdf file ) link at the bottom of this page. Total 30 Pages | ||
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USB3450
Hi-Speed USB Host or Device PHY With UTMI+ Interface
Highlights
• USB-IF “Hi-Speed” certified to the Universal Serial
Bus Specification Rev. 2.0
• Interface compliant with the UTMI+ Specification,
Rev. 1.0
• Functional as a host or device PHY
• Supports HS, FS, and LS data rates
• Supports FS pre-amble for FS hubs with a LS
device attached (UTMI+ Level 3)
• Supports HS SOF and LS keep alive pulse
• Low Latency Hi-Speed Receiver (43 Hi-Speed
clocks Max)
• Internal 1.8 volt regulators allow operation from a
single 3.3 volt supply
• Internal short circuit protection of DP and DM
lines to VBUS or ground
• Integrated 24MHz Crystal Oscillator supports
either crystal operation or 24MHz external clock
input
• Internal PLL for 480MHz Hi-Speed USB operation
• Supports Hi-Speed USB and legacy USB 1.1
devices
• 55mA Unconfigured Current (typical) - ideal for
bus powered applications
• 83uA suspend current (typical) - ideal for battery
powered applications
• Full Commercial operating temperature range
from 0C to +70C
• 40 pin QFN RoHS compliant package
(6 x 6 x 0.9mm height)
Functional Overview
The USB3450 is a highly integrated USB transceiver
system. It contains a complete Hi-Speed PHY with the
UTMI+ industry standard interface to support fast time
to market for a USB controller. The USB3450 is com-
posed of the functional blocks shown below.
USB3450 Block Diagram
VDD3.3
Internal
Regulator &
POR
24 MHz
XTAL
XTAL &
PLL
XCVRSEL[1:0]
TERMSEL
TXREADY
SUSPENDN
TXVALID
RESET
RXACTIVE
OPMODE[1:0]
CLKOUT
LINESTATE[1:0]
HOSTDISC
DATA[7:0]
HOST
RXERROR
UTMI+
Digital
HS XCVR
FS/LS
XCVR
USB3450
VDD3.3
DP
DM
Mini-AB
USB
Connector
Resistors
Bias
Gen.
RBIAS
2005 - 2016 Microchip Technology Inc.
DS00002105A-page 1
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USB3450
1.1 Applications
The USB3450 is targeted for any application where a high speed USB connection is desired.
The USB3450 is well suited for:
• Cell Phones
• MP3 Players
• Scanners
• Set Top Boxes
• Printers
• External Hard Drives
• Still and Video Cameras
• Portable Media Players
• Entertainment Devices
1.2 Reference Documents
• Universal Serial Bus Specification, Revision 2.0, April 27, 2000
• Hi-Speed Transceiver Macrocell Interface (UTMI) Specification, Version 1.02, May 27, 2000
• UTMI+ Specification, Revision 1.0, February 2, 2004
2005 - 2016 Microchip Technology Inc.
DS00002105A-page 5
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for USB3450 electronic component. |
| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ USB3450.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| USB3450 | The function is Hi-Speed USB Host or Device PHY. Microchip | |
| USB3450 | The function is HI-SPEED USB HOST OR DEVICE PHY. SMSC Corporation |  |
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