GL850G Integrated Circuit Chip 480Mb/s USB 2.0 Hub Controller
The GL850G is a USB 2.0 Hub Controller that integrates both 5V to 3.3V and 3.3V to 1.8V voltage drop regulators into a single chip, eliminating the need for external LDO components. The power enable pin supports both high-enable and low-enable power switches, providing enhanced flexibility in component selection.
This controller features an embedded 8-bit RISC processor that manages control/status registers and responds to USB host requests. The firmware controls general purpose I/O (GPIO) to access external EEPROM, enabling customized PID and VID configuration as defined in the external EEPROM.
Technical Specifications
| Product Category |
USB Interface IC |
| Product Type |
USB Controllers |
| Controller Type |
USB Controller Hub |
| Mounting Style |
SMD/SMT |
| Package / Case |
SSOP-28 |
| Standard |
USB 2.0 |
| Data Rate |
480 Mb/s |
| Supply Voltage Range |
3 V - 5.5 V |
| Operating Supply Current |
52.4 mA |
| Operating Temperature |
0℃ to +85℃ |
| Interface Type |
USB |
| Number of Ports |
5 Port |
| Operating Supply Voltage |
3.3 V, 5 V |
Key Features
- Compliant to USB Specification Revision 2.0
- Support for 4/3/2 downstream ports via I/O pin configuration
- Upstream port supports both high-speed (HS) and full-speed (FS) traffic
- Downstream ports support HS, FS, and low-speed (LS) traffic
- 1 control pipe (endpoint 0, 64-byte data payload) and 1 interrupt pipe (endpoint 1, 1 byte data payload)
- Backward compatible to USB specification Revision 1.1
- On-chip 8-bit micro-processor with RISC-like architecture
- USB optimized instruction set with 6 MIPS @ 12MHz performance
- 64-byte RAM and 2K mask ROM
- Support for customized PID, VID by reading external EEPROM
- Downstream port configuration via external EEPROM
- Integrated USB 2.0 transceiver
- Built-in upstream 1.5KΩ pull-up and downstream 15KΩ pull-down
- Embedded serial resistor for USB signals
- Conforms to bus power requirements
- Automatic switching between self-powered and bus-powered modes
- Support for compound-device (non-removable in downstream ports) via I/O pin configuration
- Configurable non-removable device support
- Built-in PLL supports external 12 MHz crystal/Oscillator clock input
- Built-in 5V to 3.3V regulator
- Low power consumption
- Improved output drivers with slew-rate control for EMI reduction
- Internal power-fail detection for ESD recovery
- Downstream port configuration via GPIO without external EEPROM
Applications
- Stand-alone USB hub
- PC motherboard USB hub, Docking of notebook
- Gaming console
- LCD monitor hub
- Any compound device requiring USB hub functionality
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Frequently Asked Questions
Are your products original?
Yes, all products are original, new original import is our purpose.
Which Certificates do you have?
We are ISO 9001:2015 Certified Company and member of ERAI.
Can you support small quantity order or sample? Is the sample free?
Yes, we support sample orders and small orders. Sample cost varies according to your order or project requirements.
How to ship my order? Is it safe?
We use express carriers such as DHL, FedEx, UPS, TNT, and EMS. We can also use your suggested forwarder. Products are carefully packaged to ensure safety, and we take responsibility for any product damage to your order.
What about the lead time?
We can ship stock parts within 5 working days. For items not in stock, we will confirm the lead time based on your order quantity.
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