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MK712 PDF预览

MK712

更新时间: 2024-02-08 01:35:24
品牌 Logo 应用领域
矽成 - ICSI 控制器
页数 文件大小 规格书
16页 206K
描述
Touch Screen Controller

MK712 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:SOIC-28针数:28
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.81
Is Samacsys:N商用集成电路类型:CONSUMER CIRCUIT
JESD-30 代码:R-PDSO-G28JESD-609代码:e3
长度:18.05 mm湿度敏感等级:1
功能数量:1端子数量:28
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP28,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
电源:3.3/5 V认证状态:Not Qualified
座面最大高度:2.65 mm子类别:Other Consumer ICs
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):3 V
表面贴装:YES温度等级:COMMERCIAL
端子面层:Matte Tin (Sn) - annealed端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7.5 mm
Base Number Matches:1

MK712 数据手册

 浏览型号MK712的Datasheet PDF文件第2页浏览型号MK712的Datasheet PDF文件第3页浏览型号MK712的Datasheet PDF文件第4页浏览型号MK712的Datasheet PDF文件第5页浏览型号MK712的Datasheet PDF文件第6页浏览型号MK712的Datasheet PDF文件第7页 
MK712  
Touch Screen Controller  
ICR O CLOC K  
Description  
Features  
The MK712 Touch Screen Controller IC provides  
all the screen drive, A to D converter and control  
circuits to easily interface to 4-wire analog resistive  
touch screens.  
• Fully integrated, lowest power solution  
• Low standby current of 0.5µA (typical) at 5.0V  
Active current while converting less than 10 mA  
• Resolves 350 dots/inch on 10.5” display  
• Maximum speed of 197 points/second  
• Ratiometric conversion may eliminate screen  
calibration  
• Automatically wakes up and goes back to standby  
• 3.3V or 5V supply  
• 12 bit A/D converter  
• Simplifies the writing of software for touch screens  
• Extended temperature range available  
• Capacitors are the only external components  
required  
• Touch screen is directly driven - no external  
transistors are required  
The IC continually monitors the screen waiting  
for a touch. In this mode, the supply current is  
typically 0.5µA. When the screen is touched, the  
IC performs analog to digital conversions to  
determine the location of the touch, stores the X  
and Y locations in the registers, and issues an  
interrupt. This process is repeated up to 197 times  
per second until no further screen touches are  
detected, at which time the low current mode is  
resumed.  
Block Diagram  
• Programmable conversion rate  
• A to D Converter is monotonic  
• Parallel interface  
• See the MK715 for a serial interface  
REGISTERS  
STATUS LOW  
8
0
D0-D7  
A0-A2  
1
2
3
STATUS HIGH  
X-LOW  
Pin Assignment  
3
X-HIGH  
4
5
6
Y-LOW  
Y-HIGH  
CONTROL  
RATE  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
NC  
INT  
TOUCH  
VDD  
1
2
3
4
5
6
7
8
D0  
D1  
D2  
D3  
D4  
D5  
VDD  
GND  
D6  
D7  
CLKIN  
A0  
A1  
A2  
CS  
RD  
WR  
7
VDD  
XH  
XL  
YH  
YL  
GND  
GND  
WR  
9
10  
11  
12  
13  
14  
CLKIN  
XH  
12 Bit A/D,  
Screen Driver  
and  
(14.318 MHz)  
XL  
YH  
YL  
RD  
CS  
INT  
Controller  
TOUCH  
MDS 712 I  
1
Revision 100899 Printed 11/16/00  
Integrated Circuit Systems, Inc.•525 Race St.•San Jose•CA•95126•(408)295-9800tel•www.icst.com  

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