描述 Description

The Microchip USB84604 is a low-power, OEM configurable, MTT (Multi-Transaction Translator) USB 2.0 hub controller with 4 downstream ports and advanced features for embedded USB applications. The USB84604 is?compliant with the USB 2.0 Specification and has?passed?AEC-Q100 testing. It includes advanced USB features, like; USB 2.0 Link Power Management and High-Speed Inter-Chip (HSIC) USB Electrical Specification Revision 1.0?for low power consumption. The USB84604?will attach to an upstream port as a Full-Speed hub or as a Full-/Hi-Speed hub, while the?4 downstream ports support Low-Speed, Full-Speed, and Hi-Speed (if operating as a Hi-Speed hub).?The HSIC?interface is available as an upstream port option, and?provides??support?Hi-Speed operation, only.Meeting the desire of consumers for a “connected vehicle,” Microchip’s FlexConnect technology allows for easy port reversals or “role swapping.” The USB84604’s downstream port 1 is able to swap with the upstream host port, thus transferring the host capability to the product connected to the UCH2, such as smartphones and tablets. This unique capability allows for the smartphone ecosystem of software and applications to be connected to the automobile infotainment system.The USB84604 has been specifically optimized for embedded systems where high performance, and minimal BOM costs are critical design requirements. Standby mode power has been minimized and reference clock inputs can be aligned to the customer’s specific application. Flexible power rail options ease integration into energy efficient designs by allowing the USB84604 to be powered in a single-source (VBUS (5V), VBAT, 3.3V) or a dual-source (VBAT + 1.8, 3.3V + 1.8) configuration.?The USB-IF Battery Charger?specification?(revision 1.2) is?supported on?up and?downstream ports,. In?addition, all required resistors on the USB ports are integrated into the hub, including all series termination and pull-up/pull-down resistors on the D+ and D– pinsDCP: Dedicated Charging Port (Power brick with no data)CDP: Charging Downstream Port (1.5A with data)SDP: Standard Downstream Port (0.5A with data)Custom profiles?also?supported?The USB84604 provides for a part?type?option to enable an?USB endpoint dedicated for use as a USB to I2C/SPI interface, thus allowing external circuits or devices to be monitored, controlled, or configured via the USB interface.Microchip's complimentary and confidential MicroCHECK?design review service, which offers insight from the initial concept to the final PCB layout, is available to customers who are using our products in their projects. You can confidently submit your design materials in a secure and private setting, and our expert engineers will provide individualized feedback to enhance your design.?MicroCHECK?design review service is subject to?Microchip's?Program Terms and Conditions?and requires a myMicrochip?account.The USBF129 flash memory device is also offered as a companion chip to the USB84604.??It is factory pre-programmed with application firmware and default hub?configuration settings. The USBF129 memory function?assures proper functionality, providing for decreased?development time and engineering resource, and overall faster time to market.

特性 Features

Hub Controller IC with 4 downstream ports
Upstream port selectable between HSIC or USB 2.0
USB-IF Battery Charger revision 1.2 support on up and downstream ports (DCP, CDP, SDP)
Battery charging support for Apple? devices
FlexConnect: Downstream port 1 able to swap with upstream port, allowing master capable devices to control other devices on the hub
USB to I2C?/SPI bridge endpoint support
USB Link Power Management (LPM) support
SUSPEND pin for remote wakeup indication to host
Start Of Frame (SOF) synchronized clock output pin
Vendor Specific Messaging (VSM) support
Enhanced OEM configuration options available through OTP or SMBus Slave Port
VBUS (5V) or VBAT only operation
3.3V only operation
VBAT + 1.8V operation
3.3V + 1.8V operation
48-pin (7x7mm) SQFN, RoHS compliant package
Applications:Media Hubs
Infotainment Head Units
Break-Out- Boxex
GPS systems
Infotainment systems
Advancd instrumentations and controls
LCD Monitors
Multi-function USB Peripherals
PC Motherboards
Mobile PC Docking
Embedded Automotive?Systems

應(yīng)用 Application

·Media Hubs
·Infotainment Head Units
·Break-Out- Boxex
·After market automotive products·GPS systems
·Infotainment systems
·Advancd instrumentations and controls