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TSC2004_12

更新时间： 2024-02-10 13:21:29
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58页 1478K
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1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire

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TSC2004_12 数据手册

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SBAS408E–JUNE 2007–REVISED MARCH 2008  
1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire  
TOUCH SCREEN CONTROLLER with I2C™ Interface  
1
FEATURES  
APPLICATIONS  
•
•
•
•
Cellular Phones  
23  
•
4-Wire Touch Screen Interface  
Portable Instruments  
MP3 Players, Pagers  
Multiscreen Touch Control  
•
•
•
•
•
•
Ratiometric Conversion  
Single 1.2V to 3.6V Supply  
Preprocessing to Reduce Bus Activity  
High-Speed I2C-Compatible Interface  
Internal Detection of Screen Touch  
Register-Based Programmable:  
DESCRIPTION  
The TSC2004 is a very low-power touch screen  
controller designed to work with power-sensitive,  
handheld applications that are based on advanced  
low-voltage processors. It works with a supply voltage  
as low as 1.2V, which can be supplied by a  
–
–
–
10-Bit or 12-Bit Resolution  
Sampling Rates  
System Timing  
single-cell battery. It contains  
a
complete,  
•
•
•
•
On-Chip Temperature Measurement  
Touch Pressure Measurement  
Auto Power-Down Control  
Low Power:  
ultralow-power, 12-bit, analog-to-digital (A/D) resistive  
touch screen converter, including drivers and the  
control logic to measure touch pressure.  
In addition to these standard features, the TSC2004  
offers  
preprocessing  
of  
the  
touch  
screen  
–
–
–
–
–
760µW at 1.8V, 50SSPS  
measurements to reduce bus loading, thus reducing  
the consumption of host processor resources that can  
then be redirected to more critical functions.  
The TSC2004 supports an I2C serial bus and data  
transmission protocol in all three defined modes:  
580µW at 1.6V, 50SSPS  
285µW at 1.2V, 50SSPS  
74µW at 1.6V, 8.2kSPS Eq. Rate  
47µW at 1.2V, 8.2kSPS Eq. Rate  
standard,  
fast,  
and  
high-speed.  
It  
offers  
•
•
Enhanced ESD Protection:  
programmable resolution of 10 or 12 bits to  
accommodate different screen sizes and performance  
needs.  
–
–
–
–
±8kV HBM  
±1kV CDM  
±25kV Air Gap Discharge  
±12kV Contact Discharge  
The TSC2004 is available in a miniature, 18-lead,  
5 x 5 array, (2.554 ±0.54)mm x (2.554 ±0.54)mm  
wafer chip-scale package (WCSP), and a 20-pin, 4 x  
4 QFN package. Both packages are characterized for  
the –40°C to +85°C industrial temperature range.  
2.5 x 2.5 WCSP-18 and 4 x 4 QFN-20 Packages  
U.S. Patent No. 6,246,394; other patents pending.  
PENIRQ  
PINTDAV  
DAV  
VREF  
X+  
Touch  
SCL  
X-  
Y+  
Y-  
Screen  
Drivers  
2
I C  
SAR  
ADC  
SDA  
Interface  
Mux  
Serial  
Interface  
AD0  
and  
TEMP  
AD1  
Control  
AUX  
Internal  
Clock  
RESET  
1
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.  
2
3
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.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2007–2008, Texas Instruments Incorporated  
 
 
 
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TSC2004IRTJT TI

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 		12 位、毫微功耗、4 线触摸屏控制器 | RTJ | 20 | -40 to 85
TSC2004IRTJTG4 BB

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 		1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire
TSC2004IRTJTG4 TI

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 		12 位、毫微功耗、4 线触摸屏控制器 | RTJ | 20 | -40 to 85
TSC2004IYZKR BB

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 		1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire TOUCH

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