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EM83812EP 데이터시트 PDF




ELAN Microelectronics Corp에서 제조한 전자 부품 EM83812EP은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 EM83812EP 기능
기능 ALL-INONE PLUG & PLAY SCRLLING SERIAL MOUSE CONTROLLER
제조업체 ELAN Microelectronics Corp
로고 ELAN Microelectronics Corp 로고


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EM83812EP 데이터시트, 핀배열, 회로
EM83812
ALL-INONE PLUG & PLAY SCRLLING SERIAL MOUSE CONTROLLER
Preliminary
GENERAL DESCRIPTION
The EM83812 PnP Scrolling Mouse Controller is specially designed to control serial mouse device.
This single chip can interface three key-switches and 4 X-Y photo-couples plus Z-axis directly to RS-232C.
There are four types Z-axis inputs used to implement scrolling mouse functionality.
FEATURES
• Using 50kΩ ±1% resistor for RC oscillation.
• Compatible with Microsoft serial scrolling mouse.
• 100 bytes PnP ID code could be filled by code layer.
• Built-in noise immunity circuit.
• The sampiling rate of motion detector is up to 65KHz.
• Built-in three zener diodes : one in VDD to VSS, two in RTS to VDD.
• CMOS push-pull RXD output.
• Built-in current comparator for photo-couples input.
• Built-in three step dynamic input impedance.
• Three key-switches and four photo-couples inputs.
• RTS debouncing circuit included.
• Photo couple test mode included.
• Low power dissipation.
• Six types Z direction input:
1. Photo couples input. (Z/1)
4. Mechanical input. (Z/1)
2. Key-switches input.
5. Photo couples input. (Z/4)
3. Voltage-sensing input.
6. Mechanical input. (Z/2)
• Package type:
EM83812AP : 16DIP, Photo couples input. (Z/1) EM83812DP: 16DIP, Mechanical input. (Z/1)
EM83812BP : 16DIP, Key-switches input.
EM83812EP : 16DIP, Photo couples input. (Z/4)
EM83812CP : 16DIP, Voltage-sensing input. EM83812FP : 16DIP, Mechanical input. (Z/2)
APPLICATION
• Serial PnP scrolling mouse.
PIN ASSIGNMENT
EM83812A/B/C/D/E/FP
VDD
OSC.OUT
Z1
Z2
RTS
RXD
OPT
VSS
1
2
3
4
5
6
7
8
16 OSCR
15 Y2
14 Y1
13 X2
12 X1
11 L
10 M
9R
* This specification are subject to be changed without notice.
9.3.1999 1




EM83812EP pdf, 반도체, 판매, 대치품
EM83812
ALL-INONE PLUG & PLAY SCRLLING SERIAL MOUSE CONTROLLER
Preliminary
Value
1
2
3
4
5
6
7
Rate per second
2.7
6.4
9.2
12.8
15
18
20
(d) Voltage-sensing mode : There are 7 voltage levels in Z1, Z2 input. The transmission table is the same as
key-switches mode. The relationship between the value of Z-axis counter and the voltage as folllows :
Value
0
1
2
3
4
5
6
7
Under VDD=5V condition.
Voltage
1V
1.0V-1.6V
1.6V-2.2V
2.2V-2.8V
2.8V-3.4V
3.4V-4.0V
4.0V-4.6V
4.6V
(e) Mechanical mode : The same as optical wheel mode.
* This specification are subject to be changed without notice.
9.3.1999 4

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EM83812EP 전자부품, 판매, 대치품
EM83812
ALL-INONE PLUG & PLAY SCRLLING SERIAL MOUSE CONTROLLER
Preliminary
TIMING DIAGRAM
(A) RXD output :
Key in/release
Mouse RXD
Tmx
Tmx
(B) Bytes structure :
RXD
(C) Bits structure :
1st 2rd 3nd 4nd
RXD LINE
Data Bit no.
0 1 2345 6
Ts Td Td Td Td Td Td Td TP Tp
01
(D) PnP ID code echo timing :
RTS
RXD
><
Trd
4D 5A 40 00 00 00 08 PnP ID code 09
"4D" code
Bit no
Ts 0 1 2 3 4 5 Tp Tp
* This specification are subject to be changed without notice.
9.3.1999 7

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관련 데이터시트

부품번호상세설명 및 기능제조사
EM83812EP

ALL-INONE PLUG & PLAY SCRLLING SERIAL MOUSE CONTROLLER

ELAN Microelectronics Corp
ELAN Microelectronics Corp

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