HT82K629A - Holtek Semiconductor Inc

HT82K629A Windows 2000 USB+PS/2 Keyboard Encoder

The HT82K629A can function both in USB and PS2 interface environment. For PS2 interface, it supports IBM PC/AT, IBM PS/2 and all compatible machines and provides a 16-character first-in-first-out buffer in which data Block Diagram is stored. For USB interface, it can support the USB standard request as well as HID class request version 1.1. U S B D + /P S .

Features

· Operating voltage: 4.4V~5.5V
· Operating frequency: fSYS=6M
· Design for Windows 95/98/NT/2000/XP
· Phantom key detection
· Low voltage reset function
· USB and PS2 modes supported
· Auto detect USB or PS2 interface
· USB 1.1 low speed function
· Supports PS2 code set 1 and code set 2
· Supports multimedia key
· Supports ACPI key
· Supports mini-keyboard with Fn key
· Built-in Watchdog Timer
· HALT function and wake-up feature for USB mode to reduce power consumption
· 40-pin DIP, 48-pin SSOP packages General Description The HT82K629A can function both in USB and PS2 interface environment..