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參數(shù)資料
| 型號： | W81C180 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 總線控制器 |
| 英文描述： | USB HUB Controller Interface(USB結(jié)構(gòu)的集線器控制器接口) |
| 中文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PDIP32 |
| 封裝： | PLASTIC, DIP-32 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 83K |
| 代理商： | W81C180 |
W81C180
USB HUB CONTROL INTERFACE
Publication Release Date: May 1997
- 1 -
Revision A1
GENERAL DESCRIPTION
W81C180 implements a medium speed (12Mhz) Universal Serial Bus (USB) hub control interface. It
supports four downstream ports and an I2C serial interface to microcontrollers.
W81C180 acts as a USB hub controller and a hub repeater at the direction of an external
microcontroller. W81C180 controls the traffic among the host, four downstream ports, and the
microprocessor. As a hub controller, it can enable/disable ports, send and receive resets, and detect
devices of high or low speeds. The W81C180 contains two function endpoints and two hub endpoints
to allow both USB Control and Interrupt Transfers between the host and microcontroller.
W81C180 is a compound USB device (hub with embeded function attached) with totally five
downstream ports. Four of them are removable and the other is permanently attached to the
microprocessor connected. W81C180 can be used as a hub controller in a standalone hub with
attached function or in a microcontroller based USB device with hub functionality. In the latter case,
the microcontroller does not need a USB interface and does not occupy one downstream port.
FEATURES
Full compliance with USB spec Rev 1.0 and HID Class Definition Rev 1.0
Support multiple endpoints for standalone hub with attached function
Support USB device with embedded hub functionality
USB function controller
USB hub controller/repeater
Bus-powered/self-powered hub option
Four downstream ports with per port overcurrent protection
Two endpoints for hub (Control and Interrupt)
Two endpoints for attached device (Control and Interrupt)
6KV ESD protection
32-pin PDIP
5V CMOS device
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