RSM84510 반도체 회로 부품 판매점
PS/2 Scrolling Mouse Controller
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RSM84510
PS/2 SCROLLING MOUSE CONTROLLER
GENERAL DESCRIPTION
The RSM84510 Scrolling Mouse Controller is specially designed to control PS/2 mouse device. This single
chip can interface three key-switches four photo-couples plus z-axis direct to 8042 controller.
RSM84510 can receive command and echo status or data format which are compatible with IBM PS/2 mode
mouse.
Key debouncing circuit is provided to prevent false entry and improve the accuracy.
In the traditional mouse, a great number of noises are generated when the grid is partially closed or opened.
These noises are usually mistaken for movement signals by traditional mouse controller and the cursor of the
display screen is thus moved frequently up and down or back and forth. This will consume a great amount of
energy. The RSM84510 mouse controller provides noise immunity circuits to eliminat these noise in order to
reduce energy consumption.
FEATURES
Using 51k 5% resistor for RC oscillation.
Compatible with legacy PS/2 mouse.
Compatible with Microsoft scrolling mouse.
Built-in noise immunity circuit.
Built-in current comparator for photo-couples input.
www.DataSheet4U.comBuilt-in three step dynamic input impedance.
Three key-switches and four photo-couples inputs.
Six types Z direction input:
1.Photo couples input.(Z/1)
2.Key-switches input.
3.Voltage-sensing input.
4.Mechanical input.(Z/1)
5.Photo couples input.(Z/4)
6.Mechanical input.(Z/2)
Both key-press and key-release debounce interval 12 ms.
The sampling rate of motion detector is about 65KHz.
Low power dissipation.
Package type:
RSM84510AP:16DIP,Photo couples input.(Z/1)
RSM84510BP:16DIP,Key-switches input.
RSM84510CP:16DIP,Voltage-sensing input
RSM84510DP:16DIP,Mechanical input.(Z/1)
RSM84510EP:16DIP,Photo couples input.(Z/4)
RSM84510FP:16DIP,Mechanical input.(Z/2)
PIN to PIN compatible with RSM84510.
PIN ASSIGNMENT
RSM84510A/B/C/D/E/FP
*WUXI RISONG MICRO ELECTRONIC CO.,LTD
DataSheet4 U .com
31/05/02
-1-
www.DataSheet4U.com
www.DataSheet4U.com
RSM84510
PS/2 SCROLLING MOUSE CONTROLLER
PIN DESCRIPTIONS
Pin
7
2
16
5
6
9/10/11
12
13
14
15
3
4
8
1
Symbol
I/O
Function
OPT I/O INPUT:200kohm pull low to VSS.
When OPT is connected to VDD, RSM84510 will enter test mode. In test
mode, L will be the output of X1, while M will be the output of X2.
Toggling R key can change these output to be Y1, Y2, or Z1, Z2
respectively.
OUTPUT:2kHz Z-axis LED driving source.
1 =VDD, 0 =floating
High duty is about 60us.
OSC.OUT
O RC mode oscillation with 51kohm resistor.
OSCR
I
CLK
I/O Connect to 8042 auxiliary port CLK line.
DATA
I/O Connect to 8042 auxiliary port DATA line.
R/M/L
I Three key-switches inputs.
200kohm resistor pull low.
X1 I Three step dynamic input impedance.
X2 Use current comparator to measure photo-couples ON ,or OFF .
Y1
Y2
Z1 I Z-axis inputs.
Z2 Photo mode: Three step dynamic input impedance. Current comparator
input.
Key mode: 200kohm resistor pull low. 7 levels increased by M key.
www.DataSheet4U.comVoltage mode: 200kohm resistor pull low.7 levels voltage comparator.
Mechanical mode: 13.2kohm resistor pull low.
VSS Ground
VDD
Power
FUNCTIONAL BLOCK DIAGRAM
OPT
X1
X2
Y1
Y2
L
M
R
Z1
Z2
C
OD
M ME
P OT
A TE
R IC
A OT
T NO
OR
R
D
E
B
O
U
N
C
E
THREE TYPES SELECTOR
VOLTAGE
KEY-SWITCH
COMPARATOR
SENSOR
DETECTOR
Z-AXIS COUNTER
COUNTER
MULTIPLEXER
COMMON
STATUS
OSCR
OSC.OUT
SYSTEM CLOCK
GENERATOR
RC
OSCILLATION
DATA CLK
DATA I/O
TIMING
CONTROLLER
*WUXI RISONG MICRO ELECTRONIC CO.,LTD
DataSheet4 U .com
31/05/02
-2-
www.DataSheet4U.com
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RSM84510 controller
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[ RSM84510.PDF ]
[ RSM84510 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
