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TSC2007I

更新时间： 2024-11-26 03:57:51
品牌 Logo 应用领域
BB 控制器
页数 文件大小 规格书
38页 715K
描述
1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Micro TOUCH SCREEN CONTROLLER with I2C Interface

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SBAS405–MARCH 2007  
1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire  
Micro TOUCH SCREEN CONTROLLER with I2C™ Interface  
FEATURES  
APPLICATIONS  
•
•
•
•
•
Cellular Phones  
PDA, GPS, and Media Players  
Portable Instruments  
Point-of-Sale Terminals  
Multiscreen Touch Control  
•
•
•
•
4-Wire Touch Screen Interface  
Single 1.2V to 3.6V Supply/Reference  
Ratiometric Conversion  
Effective Throughput Rate:  
–
Up to 20kHz (8-Bit) or 10kHz (12-Bit)  
•
•
Preprocessing to Reduce Bus Activity  
I2C Interface Supports:  
DESCRIPTION  
The TSC2007 is a very low-power touch screen  
controller designed to work with power-sensitive,  
handheld applications that are based on an  
advanced low-voltage processor. It works with a  
supply voltage as low as 1.2V, which can be  
supplied by a single-cell battery. It contains a  
complete, ultra-low power, 12-bit, analog-to-digital  
(A/D) resistive touch screen converter, including  
drivers and the control logic to measure touch  
pressure.  
–
Standard, Fast, and High-Speed Modes  
•
Simple, Command-Based User Interface:  
–
–
TSC2003 Compatible  
8- or 12-Bit Resolution  
•
•
•
•
•
•
On-Chip Temperature Measurement  
Touch Pressure Measurement  
Digital Buffered PENIRQ  
On-Chip, Programmable PENIRQ Pullup  
Auto Power-Down Control  
Low Power:  
In addition to these standard features, the TSC2007  
offers preprocessing of the touch screen  
measurements to reduce bus loading, thus reducing  
the consumption of host processor resources that  
can then be redirected to more critical functions.  
The TSC2007 supports an I2C serial bus and data  
transmission protocol in all three defined modes:  
–
–
–
32.24µA at 1.2V, Fast Mode, 8.2kHz Eq Rate  
39.31µA at 1.8V, Fast Mode, 8.2kHz Eq Rate  
53.32µA at 2.7V, Fast Mode, 8.2kHz Eq Rate  
•
Enhanced ESD Protection:  
standard,  
programmable resolution of  
accommodate different screen  
performance needs.  
fast,  
and  
high-speed.  
or 12 bits to  
sizes and  
It  
offers  
–
–
–
–
±8kV HBM  
8
±1kV CDM  
±25kV Air Gap Discharge  
±15kV Contact Discharge  
The TSC2007 is available in  
a
12-lead,  
(1.555 ±0.055mm) x (2.055 ±0.055mm), 3 x 4 array,  
wafer chip-scale package (WCSP), and a 16-pin,  
TSSOP package. The TSC2007 is characterized for  
the –40°C to +85°C industrial temperature range.  
•
1.5 x 2 WCSP-12 and 5 x 6.4 TSSOP-16  
Packages  
U.S. Patent NO. 6246394; other patents pending.  
VDD/REF  
PENIRQ  
X+  
X-  
Y+  
Y-  
Touch  
Screen  
Drivers  
Interface  
I2C  
Serial  
SAR  
ADC  
SCL  
Mux  
Interface  
and  
SDA  
TEMP  
Control  
A[0:1]  
AUX  
Internal  
Clock  
GND  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
I2C is a trademark of NXP Semiconductors.  
All other trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2007, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...38

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