AU9410 Datasheet, PDF (5/31 Pages) List of Unclassifed Manufacturers – USB Keyboard Controller

1.0 Introduction
1.1 Description
The AU9410 is a single chip integrated USB keyboard, ACPI and multimedia function
controller chip. It supports the 19 x 8 keyboard matrix. Each key can be individually
programmed for any USB usage page and usage code, including standard key code, ACPI and
multimedia usage…etc.
Separated ACPI key is another special feature offered by AU9410. There is one pin dedicated
for all-in-one ACPI function, and one additional scan line to support 8 “Desktop” page keys.
The USB descriptors and keyboard matrix can be customized via an optional external 24C08
EEPROM, or directly select the internal 4 different models from internal ROM. This feature
makes customization of new projects cost-effective and efficient by only adding an external
EEPROM while still using the same mass production chip.
To minimize BOM cost, the AU9410 integrated all other components typically founded in an
USB keyboard, it also eliminate external crystal. This single chip integration makes the
AU9410 the most cost effective USB keyboard solution available in the market.
1.2 Features
• Fully compliant with the Universal Serial Bus Specification, version 1.1
• USB keyboard design is compliant with USB Device Class Definition for Human
Interface Devices (HID), version 1.1
• Built-in 3.3v voltage regulator allows single +5V operating voltage drawing directly from
USB bus.
• Support for 19 x 8 standard key matrix. An Fn pin to selection of alternative matrix.
• Support separate ACPI keys. One pin dedicated for all-in-one ACPI function and also
editable in the 19x8 key matrix
• Each key can be individually programmed for standard key code, ACPI or multimedia
usage
• Ability to configure the generic LEDs to blink on and off at a rate of 512ms.
• Additional LED1 (vendor defined)
INTRODUCTION
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