? Compliant with USB 3.1 Gen 1 Specification

1 CDP, charging downstream port, the Battery Charging Rev.1.2-compliant USB port that does data communication and charges device up to 1.5A.

2 DCP, dedicated charging port, the Battery Charging Rev.1.2-compliant USB port that only charges devices up to 1.5A, similar to wall chargers.

- Upstream port supports SuperSpeed (SS), HighSpeed (HS) and FullSpeed (FS) traffic

- Downstream ports support SS, HS, FS, and LowSpeed (LS) traffic

- 1 control pipe and 1 interrupt pipe

- Backward compatible to USB specification Revision 2.0/1.1

? Native USB Type-C support in GL3523-S series

- Compliant with USB Type-C Cable and Connection Specification Revision 1.0

- Featuring USB Type-C functions

- Detecting flip-able/reversible plugging

- Discovering/configuring VBUS

- Supporting USB Type-C Current modes , including USB Default, 1.5A@5V, 3A@5V

- Configuring/Supporting VCONN Power

? Featuring fast-charging on all downstream ports and upstream port

- Compliant with USB Battery Charging Revision v1.2, supporting CDP, DCP, and ACA-Dock

- Downstream ports can be turned from a Standard Downstream Port (SDP) into Charging Downstream Port (CDP) or Dedicated Charging Port (DCP)

- Downstream devices can be charged while upstream VBUS is not present, which can be applied on wall charger applications

- Upstream port is capable of charging and data communicating simultaneously for portable devices supporting ACA-Dock or proprietary charging protocols

- Supporting Apple 1A/2.1A/2.4A and Samsung Galaxy devices fast-charging

? On-chip 8-bit micro-processor

- RISC-like architecture

- USB optimized instruction set

- 1 cycle instruction execution (maximum)

- Performance: 12 MIPS @ 12.5MHz (maximum)

- With 256-byte RAM, 20K-byte internal ROM, and 24K-byte SRAM

? Multiple Transaction Translator (TT) architecture

- Providing dedicated TT control logics for each downstream port

- Superior performance when multiple FS devices operate concurrently

? Integrated USB transceiver

- Improving output drivers with slew-rate control for EMI reduction

- Internal power-fail detection for ESD recovery

? Advanced power management and low power consumption

- Supporting USB 3.1 U0/U1/U2/U3 power management states

- Supporting USB Link Power Management (LPM) L0/L1/L2

- Supporting individual/gang mode over-current detection for all downstream ports

- Supporting both low/high-enabled power switches

- Patented Smart Power Management

? Configurable settings by firmware in SPI flash

- Configurable charging port

- Configurable 4/3/2 downstream ports, downstream port can be disabled/enabled by each specific port for USB3.1/USB2.0

- Configurable Upstream and Downstream Ports in GL3523-S

- Supporting multiple upstream ports in GL3253-S OV3S1 and OV5S1 packages

- Supporting full in-system programming firmware upgrade by SPI-flash and configuration by EEPROM

- Supporting compound-device (non-removable setting on downstream ports)

- Supporting customization VID/PID

? Flexible design

- Supporting Poly-fuse/Power-switch

- Automatic switching between self-powered and bus-powered modes

- Supporting electrical tuning for each specific port

- Supporting programmable breathing LED

- Supporting register setting by firmware

- Supporting vendor command and SMBUS

- Allow downstream ports to connect up to 8 devices, 4 x USB3.1 non-removable devices with 4 x USB2.0 non-removable devices or exposed ports

? Low BOM cost

- Single external 25 MHz crystal / Oscillator clock input

- Built-in upstream port 1.5KΩ pull-up and downstream port 15KΩ pull-down resistors

- Built-in 5 to 3.3V and 5 to 1.2V regulator

? Different package types available for various applications

? Applications

- Standalone USB hub/Docking station

- Tablet/Ultrabook/NB

- Motherboard

- Monitor built-in hub, GPIOs can be programmed as I2C interface to easily update scalar firmware through USB interface

- TV built-in hub

- Compound device, such as hub-reader application

- USB wall charger

- Other consumer electronics

- Customized applications

? Dynamically disable/enable ports

? GPIO signaling of ambient light sensor or rotation/position sensor