FE1.1s-BSOP28BCNTR

FE1.1s is a USB 2.0 High Speed 4-port hub controller supporting GSMA "Universal Charging Solution" (UCS). It is fully compliant with the USB-IF "Universal Serial Bus Specification Revision 2.0" and "Battery Charging Specification Revision 1.1/1.2". The device is a highly integrated, high-quality, high-performance USB 2.0 4-port hub solution. With its small board footprint and ultra-low power consumption, it is the ideal choice for embedded applications as well as standalone hubs. Its high quality is ensured through comprehensive design-for-testability featuring scan chain and built-in self-test modes, enabling testing of all High Speed, Full Speed, and Low Speed analog front-end components during packaging and testing. FE1.1s can be optionally configured to support Charging Downstream Ports as defined by the USB-IF Battery Charging Specification. When this feature is enabled, the USB hub can easily transform into a charging station — a USB charging hub for battery-powered portable devices compliant with the Universal Charging Solution.

Key features

• Fully compliant with Universal Serial Bus Specification Revision 2.0 (USB 2.0)
• Upstream port supports High-Speed (480MHz) and Full-Speed (12MHz) modes
• 4 downstream ports support High-Speed, Full-Speed, and Low-Speed (12MHz) modes
• Compliant with Universal Charging Solution and USB Battery Charging Specification 1.1/1.2
• Integrated USB 2.0 transceiver
• Integrated upstream 1.5KΩ pull-up resistors, downstream 15KΩ pull-down resistors, and series resistors
• Integrated 5V to 3.3V and 1.8V regulators
• Integrated power-on reset with power fault detection circuit
• Integrated 12MHz oscillator with feedback resistors and crystal load capacitors
• Integrated 12MHz to 480MHz PLL
• Integrated portable device detection circuit for UCS support
• Single Transaction Translator – all downstream ports share one TT; the TT can handle 64 periodic Start-Split transactions, 32 periodic Complete-Split transactions, and 6 non-periodic transactions
• Supports ganged power control and global over-current detection
• EEPROM configurable options – Vendor ID, Product ID, and Device Release Number; and number of downstream ports
• Automatic re-enumeration when hub switches from self-powered to bus-powered mode
• Board-level configuration supports comprehensive port indicators: four downstream port enable LEDs (green, one per port) plus one activity/suspend LED (red); or one ganged downstream port enable LED (green, shared across all ports) plus one activity/suspend LED (red); or one ganged downstream port enable LED (green, shared across all ports) plus one charge request/portable device detection LED (blue)
• Board-level configuration supports Universal Charging Solution portable device detection mechanism on all 4 downstream ports