HT82M22A
5-Key 3D USB+PS/2 Optical Mouse Controller
Features
路
Operating voltage: 4.4V~5.25V
路
Compatible with Microsoft Windows 2000 and
路
Single chip solution especially for USB mouse
function
路
HALT function and wake-up feature reduce power
5-button Wheel Mouse
路
Complete Universal Serial Bus specs V1.1
consumption
路
Plug and Play functions
路
Minimal external components
路
6MHz crystal oscillator for system clock
路
Interface compliant with ADNS-2051, ADNS-2610
compatibility
路
Serial Bus Interface Engine (SIE)
路
USB transceiver
路
Microsoft 3D Intelli mouse and IBM PS/2 mouse
compatible
路
Supports five buttons and Z-axes input
路
Z-axis can support two kinds of scroller input
and ADNS-2620
路
Pass WHQL, USB-IF and EMC testing
路
20-pin DIP package
(optomechanical and mechanical)
General Description
HT82M22A is a Plug and Play Windows 2000 and
5-button 3D USB+PS/2 Mouse controller. The
HT82M22A can support the USB Standard Request as
well as HID Class Request version 1.1. It is compatible
with Microsoft Intelli 3D PS/2 mouse. The Z-axis can
support two kinds of scroller input, namely; mechanical
and optomechanical. It requires minimal external com-
ponents to implement 3D USB plus PS/2 mouse. All its
features combined and make up this versatile Holtek
8-bit MCU with an on-chip USB interface logic. The
USB is specified by the
Universal Serial Bus Specifica-
tion V1.1.
Block Diagram
U S B
T r a n s c e iv e r
U S B
R e c e iv e r
R e g is te r
S e t
U S B D +
U S B D
-
U S B
T r a n s m itte r
V 3 3 O
V o lta g e
R e g u la to r
U S B
In te rfa c
(S
a
C o
L o
S e r ia l
e E n g in e
IE )
n d
n tro l
g ic
H o lte k
8 - b it
M ic r o c o n tr o lle r
O S C 1
O S C 2
C lo c k
G e n e ra to r
R C
R E S E T
M a in
S ta te m a c h in e
S u s p e n s io n
C o n tro l
F IF O s
麓
2
V D D
V S S
Rev. 1.10
1
August 4, 2004
1
2
3
4
5
6
