USB3450
The USB3450 is a stand-alone Hi-Speed USB Physical Layer Transceiver (PHY). The USB3450 uses a UTMI+ interface to connect to an SOC or ASIC or FPGA. Microchip's advanced proprietary technology minimizes power dissipation, resulting in maximum battery life for portable applications. The USB3450 is a flexible solution for adding USB to new designs without integrating the analog PHY block.
The USB3450 provides a fully compliant Hi-Speed interface, and supports Hi-Speed (HS), Full-Speed (FS), and Low-Speed (LS) USB. The USB3450 supports all levels of the UTMI+ specification.
Features- USB-IF "Hi-Speed" certified to the Universal Serial Bus Specification Rev 2.0
- Interface compliant with the UTMI+ Specification, Revision 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 0°C to +70°C
- 40 pin QFN RoHS compliant package (6 x 6 x 0.9mm height)
| Parameter
Parameter Name
Value
| Value |
Description
USB 2.0 UTMI+ PHY IC
|
USB 2.0 UTMI+ PHY IC
|
Upstream Port
UTMI+
|
UTMI+
|
Reference Clock Freq
24MHz
|
24MHz
|
I/O Voltage (V)
3.3V
|
3.3V
|
Crystal Support
Yes
|
Yes
|
Host Based I/F
Yes
|
Yes
|
Temp. Range Max.
70
|
70
|
|
Documents
Similar Devices
RoHS Information
PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
---|
USB3450-FZG | 0.093500 | 0.857143 | 40 | VQFN | 6x6x0.9 | Matte Tin | e3 | | |