GL852G 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)
GL852G's Features
1. Compliant to USB specification Revision 2.0
-4 downstream ports
-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
-Dual cycle instruction execution
-Performance: 6 MIPS @ 12MHz
-With 64-byte RAM and 2K internal ROM
-Support customized PID, VID by reading external EEPROM
-Support downstream port configuration by reading external EEPROM
3. Multiple Transaction translator (MTT)
-MTT provides respective TT control logics for each downstream port. This is a performance better
4. choice for USB 2.0 hub.
5. Each downstream port supports two-color status indicator, with automatic and manual modes compliant to
6. USB specification Revision 2.0
7. Support both individual and gang modes of power management and over-current detection for downstream ports
8. Support gang mode 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. Integrate USB 2.0 transceiver
12. PLL embedded with external 12 MHz crystal
13. Operate on 3.3 Volts
14. Embed serial resister for USB signals and integrate pull-up resister for upstream USB signal
15. Improve output drivers with slew-rate control for EMI reduction
16. Internal power-fail detection for ESD recovery
17. 64-pin LQFP package , 48-pin LQFP package , 48-pin QFN package
GL852G's Applications
1. Stand-alone USB hub
2. Monitor hub
3. PC motherboard USB hub, Docking of notebook
4. Any compound device to support USB HUB function
GL852G's Block Diagram
GL852G's Package
GL852G's Ordering Information