GL850G is Genesys Logic’s advanced version Hub solutions which fully comply with Universal Serial Bus Specification Revision 2.0. It embeds an 8-bit RISC processor to manipulate the control/status registers and respond to the requests .from USB host.(点击即可咨询芯片详细信息)
GL850G's Features
1. Compliant to USB specification Revision 2.0
-Support 4/3/2 downstream ports by 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
2. On-chip 8-bit micro-processor
-RISC-like architecture
-USB optimized instruction set
-Performance: 6 MIPS @ 12MHz
-With 64-byte RAM and 2K mask ROM
-Support customized PID, VID by reading external EEPROM
-Support downstream port configuration by reading external EEPROM
3. Single Transaction Translator (STT)
-Single TT shares the same TT control logics for all downstream port devices. This is the most cost effective solution for TT. Multiple TT provides individual TT control logics for each downstream port. This is a performance better choice for USB 2.0 hub. Please refer to GL852 datasheet for more detailed information.
4. Integrate USB 2.0 transceiver
5. Each downstream port supports two-color status indicator, with automatic and manual modes compliant to USB specification Revision 2.0
6. Built-in upstream 1.5KΩ pull-up and downstream 1.5KΩ pull-down
7. Embed serial resister for USB signals
8. Support both individual and gang modes of power management and over-current detection for downstream ports
9. Conform to bus power requirements
10. Automatic switching between self-powered and bus-powered modes
11. Support compound-device (non-removable in downstream ports) by I/O pin configuration
12. Configurable non-removable device support
13. PLL embedded with external 12 MHz crystal
14. Embeds 5V to 3.3V regulator
15. Low power consumption
16. Improve output drivers with slew-rate control for EMI reduction
17. Internal power-fail detection for ESD recovery
18. Full function in 48-pin LQFP package
Applications
1. Stand-alone USB hub
2. PC motherboard USB hub, Docking of notebook
3. LCD monitor hub
4. Any compound device to support USB HUB function
GL850G's Block Diagram
GL850G's Package
GL850G's Ordering Information