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EM83812CP 参数 Datasheet PDF下载

EM83812CP图片预览
型号: EM83812CP
PDF下载: 下载PDF文件 查看货源
内容描述: ALL-倾朝野PLUG &PLAY SCRLLING的串行鼠标控制器 [ALL-INONE PLUG & PLAY SCRLLING SERIAL MOUSE CONTROLLER]
分类和应用: 控制器
文件页数/大小: 11 页 / 88 K
品牌: EMC [ ELAN MICROELECTRONICS CORP ]
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EM83812
ALL-INONE PLUG & PLAY SCRLLING SERIAL MOUSE CONTROLLER
ry
limina
Pre
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
V
DD
OSC.OUT
Z1
Z2
RTS
RXD
OPT
VSS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
OSCR
Y2
Y1
X2
X1
L
M
R
* This specification are subject to be changed without notice.
9.3.1999
1