W81282F-05 View Datasheet(PDF) - Winbond

Part Name

Description

Manufacturer

W81282F-05

USB Keyboard Controller with 4 Ports Hub

Winbond 

W81282F

PRELIMINARY

3. FEATURES

• Full compliance with USB spec Rev 1.1 and HID Class Definition Rev 1.0

• Embedded microprocessor--8052 ( 6K ROM + 256 Byte RAM)

• Support auto-detected two power source mode between bus power mode and self power mode.

• 12-Mhz crystal/oscillator input to lower EMI

• Support Suspend and Resume operation

• Support ACPI features

• Four downstream ports with per port over-current protection

• Single 5V supplied with embedded 5V-3.3V regulator

• Provides the external pull-up resistor control for the up-stream connection.

• Per-port/Global power control optional

• Built-in ESD/EFT protection circuit

• Support 21 X 8 keyboard matrix

• Support consumer control function for multi-media

• Support optional EEPROM for vendor ID, device ID, and KB matrix down load

• Support encoder input for audio volume control

• Provide the external pull-up resistor control for the up-stream connect

• 100-pin PQFP

• 5V CMOS device

Publication Release Date: Aug. 1999

-2-

Revision 0.5

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