HT82M22A

5-Key 3D USB+PS/2 Optical Mouse Controller

Block Diagram

Rev. 1.10

August 4, 2004

Features

Operating voltage: 4.4V~5.25V

Compatible with Microsoft Windows 2000 and
5-button Wheel Mouse

Complete Universal Serial Bus specs V1.1
compatibility

Serial Bus Interface Engine (SIE)

USB transceiver

Microsoft 3D Intelli mouse and IBM PS/2 mouse
compatible

Supports five buttons and Z-axes input

Z-axis can support two kinds of scroller input
(optomechanical and mechanical)

Single chip solution especially for USB mouse
function

HALT function and wake-up feature reduce power
consumption

Plug and Play functions

Minimal external components

6MHz crystal oscillator for system clock

Interface compliant with ADNS-2051, ADNS-2610
and ADNS-2620

Pass WHQL, USB-IF and EMC testing

20-pin DIP package

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.

U S B

T r a n s c e i v e r

U S B

R e c e i v e r

U S B

T r a n s m i t t e r

V o l t a g e

R e g u l a t o r

C l o c k

G e n e r a t o r

R C

R E S E T

R e g i s t e r

S e t

M a i n

S t a t e m a c h i n e

S u s p e n s i o n

C o n t r o l

U S B S e r i a l

I n t e r f a c e E n g i n e

( S I E )

a n d

C o n t r o l

L o g i c

H o l t e k

8 - b i t

M i c r o c o n t r o l l e r

F I F O s ´ 2

U S B D +

U S B D -

V 3 3 O

O S C 1
O S C 2

V D D

V S S

Pin Assignment

Pin Description

Pin No.

Pin Name

I/O

Description

VSS

¾ Negative power supply, ground

V33O

3.3V voltage output

USBD+/CLK

I/O USB data plus or PS2 Clock, F/W auto-detect USBD+ for USB, CLK for PS2

USBD

-/DATA

I/O USB data minus or PS2 Data, F/W auto-detect USB

- for USB, DATA for PS2

RESET

Chip reset input, low active

6, 9

SEL1
SEL0

Configuration selections
For ANDS 2051:

SEL0=0: 800DPI (default)
SEL0=1: 400DPI
SEL1=0: Z-axis is divided by 2 (default)
SEL1=1: Z-axis is divided by 4

For ANDS 2610/2620:

SEL1=0, SEL0=don

¢t care: Z-axis is divided by 2 (default)

SEL1=1, SEL0=0: Z-axis is divided by 4

SDIO

I/O Serial data for Agilent sensor IC SDIO

SCLK(PA5)

Serial data for Agilent sensor IC SCLK

10, 11
14, 15, 16

RB0, RB1
L, R, M

Click button detection. Input ports with 30k

W pull-high resistor.

Input ports with pull-high resistor. These pads can function as Left, Right, Middle,
B4 and B5 button input lines.

12, 13

Z1, Z2

Z-axis input supports two kinds of scroller input; optomechanical and mechanical.

LED

I/O Drives LED output

VDD

¾ 5V positive power supply

OSC2

6MHz OSC output

OSC1

6MHz OSC input

Absolute Maximum Ratings

Supply Voltage ..............................V

-0.3V to V

+6V

Storage Temperature ............................

-50°C to 125°C

MCU Input Voltage.....................V

-0.3V to V

+0.3V

Operating Temperature...........................

-25°C to 70°C

USB Input Voltage ....................V

-0.3V to V

33O

+0.3V

Note: These are stress ratings only. Stresses exceeding the range specified under

²Absolute Maximum Ratings² may

cause substantial damage to the device. Functional operation of this device at other conditions beyond those
listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil-
ity.

HT82M22A

Rev. 1.10

August 4, 2004

V S S

V 3 3 O

U S B D + / C L K

U S B D - / D A T A

R E S E T

S E L 1
S D I O

S C L K

S E L 0

R B 0

O S C 1
O S C 2
V D D
L E D
M
R
L
Z 2
Z 1
R B 1

H T 8 2 M 2 2 A

2 0 D I P - A

2 0
1 9
1 8
1 7
1 6
1 5
1 4
1 3
1 2
1 1

1
2
3
4
5
6
7
8
9
1 0

D.C. Characteristics

Ta=25

°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Conditions

Operating Voltage

4.4

5.25

Operating Current
(Crystal OSC)

No load,
f

SYS

=6MHz

USB mode

PS/2 mode

SUS

USB Suspend Mode

No load, system HALT

250

IL1

Input Low Voltage
(Z1, Z2, L, M, R)

1.0

IH1

Input High Voltage
(Z1, Z2, L, M, R)

3.5

IL2

Input Low Voltage (RESET)

1.5

IH2

Input High Voltage (RESET)

3.5

POR

Built-in Power on Reset V

Detection Voltage

3.7

Sink Current (LED)

=0.8V

A.C. Characteristics

Ta=25

°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Conditions

SYS

System Clock (Crystal OSC)

6000

kHz

Note: t

SYS

=1/f

SYS

Timing Diagram

Z-axis Photo-Coupler Crossed Width

Z-axis Counting

HT82M22A

Rev. 1.10

August 4, 2004

Z 1

Z 2

N o t e : F o r Z - a x i s t

, t

> 1 m s

Z 1

Z 2

+ 1

- 1

Application Circuits

This Application Circuit is for Reference Only

Note:

Layout 0.1

mF capacitor, 33W resistor and 0.01mF capacitor as close to VDD pin as possible.

HT82M22A

Rev. 1.10

August 4, 2004

H T 8 2 M 2 2 A

1
2

6
7

1 0

V S S
V 3 3 O

U S B D + / C L K

U S B D - / D A T A

R E S E T
S E L 1
S D I O

S C L K

R B 0

V D D

U S B -

U S B +

V S S

5 k W

O S C 1
O S C 2

V D D

L E D

Z 2
Z 1

R B 1

S E L 0

2 0
1 9
1 8
1 7
1 6
1 5
1 4
1 3
1 2
1 1

M B
R B
L B

R B 0

R B 1

1
2
3
4

3 3 p F

1 . 5 k W

3 3 W

0 . 1 m F

6 M H z

1 M W

3 0 p F

0 . 1 m F

1 0 0 k W

0 . 0 1 m F

1 0 m F

D D

3 3 W

0 . 1 m F

3
0
k
W

1
k
W

R E F A
R E F B

X Y _ L E D

P D

S D I O

S C L K

G N D
G N D

R _ B I N

O S C _ I N
O S C _ O U T
X B
X A
Y B
Y A

V D D

1 5 k W

1 8 . 4 3 2 M H z

7
8
6
1 5
1 6
1
1 2
1 0

1 4

1 1

3
2
4
5

2 . 2 m F

0 . 1 m F

A D N S 2 0 5 1

0 . 1 m F

5 k W

S D I O

S C L K

S W 2

S W 1

1 3

S D I O
S C L K

N o t e : S W 1 = o p e n : 8 0 0 d p i ( d e f a u l t )

S W 1 = c l o s e : 4 0 0 d p i

S W 2 = o p e n : Z / 2 ( d e f a u l t )

S W 2 = c l o s e : Z / 4

1 0 k W

0 W

N o t e : ( S W 2 = o p e n , S W 1 = X ) : Z / 2 ( d e f a u l t )

( S W 2 = c l o s e , S W 1 = o p e n ) : Z / 4

H T 8 2 M 2 2 A

1
2

6
7

1 0

V S S
V 3 3 O

U S B D + / C L K

U S B D - / D A T A

R E S E T
S E L 1
S D I O

S C L K

R B 0

V D D

U S B -

U S B +

V S S

5 k W

O S C 1
O S C 2

V D D

L E D

Z 2
Z 1

R B 1

S E L 0

2 0
1 9
1 8
1 7
1 6
1 5
1 4
1 3
1 2
1 1

M B
R B
L B

R B 0

R B 1

1
2
3
4

3 3 p F

1 . 5 k W

3 3 W

0 . 1 m F

6 M H z

1 M W

3 0 p F

0 . 1 m F

1 0 0 k W

0 . 0 1 m F

1 0 m F

D D

3 3 W

0 . 1 m F

3
0
k
W

1
k
W

V D D

2 4 M H z

1
2

2 . 2 m F

A D N S 2 6 1 0

0 . 1 m F

5 k W

S D I O

S C L K

S W 2

S W 1

S D I O
S C L K

G N D

O S C _ I N
O S C _ O U T

R E F A

X Y _ L E D

S D I O

S C L K

3
4

1 0 0 W

1 0 0 k W

1 k W

1 0 k W

Document Outline

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: HT82M22A

Document Outline

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: HT82M22A