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MK715R

更新时间： 2024-01-02 04:41:10
品牌 Logo 应用领域
矽成 - ICSI 商用集成电路光电二极管控制器
页数 文件大小 规格书
22页 376K
描述
Touch Screen Controller

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中文翻译

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MK715R 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Contact Manufacturer零件包装代码：SSOP
包装说明：0.150 INCH, 0.025 INCH PITCH, SSOP-20针数：20
Reach Compliance Code：compliantHTS代码：8542.39.00.01
风险等级：5.13商用集成电路类型：CONSUMER CIRCUIT
JESD-30 代码：R-PDSO-G20JESD-609代码：e3
长度：8.65 mm功能数量：1
端子数量：20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：SSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, SHRINK PITCH峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：2 mm
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端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

MK715R 数据手册

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MK715  
Touch Screen Controller  
General Description  
Features  
•
•
•
Tiny 20 pin SSOP (150 mil body)  
4 microamp standby current  
The MK715 Touch Screen Controller IC provides all the  
screen drive, Analog to Digital converter (ADC) and  
controlcircuitstoeasilyinterfaceto4-wireanalogresistive  
touch screens. It also includes a general purpose A to D  
converter and a clock synthesizer.  
Less than 3mA active current at 3.3V, including  
screendrive  
Touch pressure can be measured  
One or two general purpose A to D inputs  
On-chipvoltagereference  
32.768kHz crystal/clock input  
MHz clock outputs available  
Operates with four wire touch screens  
Ratiometric conversion eliminates screen  
calibration  
Automatic wake up upon screen touch  
Programmable conversion rate to a maximum of  
303 points per second  
•
•
•
•
•
•
•
The IC continually monitors the screen waiting for a  
touch. In this mode, the supply current is typically 4µA.  
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 303 times per  
second until no further screen touches are detected, at  
which time the low current mode is resumed.  
•
•
The device has a general purpose input into the 10-bit  
ADC, allowing for the measurement of other inputs such  
as battery voltage. The MK715 can be powered from a  
3.3V supply, and uses an inexpensive 32.768kHz watch  
crystal as the input reference. An internal Phase-Lock  
Loop clock synthesizer provides the high speed clock for  
the ADC, and the option to have a clock output to drive  
other digital chips in the system.  
•
•
•
•
3.3V or 5V supply (2.7V version available)  
10 bit A/D converter  
Full powerdown control  
Touch screen is directly driven - no external  
transistors are required  
•
•
A to D Converter guaranteed monotonic  
3 or 4 wire serial interface  
The tiny package is the same body size as the 14 pin  
SOIC, with 25 mil spacings on the leads.  
Pin Assignment  
Applications  
CS  
SK  
D0  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
1
2
3
4
5
6
7
8
9
10  
• Notebook Computers  
• Handheld Computers  
• PDAs  
CLKOUT  
INT  
DI  
VDD  
X2  
TOUCH#  
XH  
• Touch-screen kiosks  
X1  
XL  
GND  
CAP2  
CAP1  
CAP3  
YH  
YL  
PL  
GP  
MK715  
20 pin SSOP  
ICS reserves the right to make changes in the device data identified in this publication  
without further notice. ICS advises its customers to obtain the latest version of all device  
data to verify that any information being relied upon by the customer is current and accurate.  
MK715RevD020200  
1234567...22

中文翻译

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