參數(shù)資料
型號: SX8652IWLTRT
廠商: Semtech
文件頁數(shù): 14/29頁
文件大小: 0K
描述: IC TOUCH SCREEN CTRLR 14DFN
標(biāo)準(zhǔn)包裝: 1
類型: 電阻
觸摸面板接口: 4 線,5 線
輸入數(shù)/鍵: 2
分辨率(位): 12 b
數(shù)據(jù)接口: 串行,SPI?
數(shù)據(jù)速率/采樣率 (SPS,BPS): 74k
電壓基準(zhǔn): 內(nèi)部
電源電壓: 1.65 V ~ 3.7 V
電流 - 電源: 10mA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 14-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 14-DFN
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: SX8652IWLDKR
Revision V1.7/October 2010
2010 Semtech Corp.
SX8652
www.semtech.com
Page 21
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
15kV ESD Low Power 4-Wire / 5-Wire Resistive
Touchscreen Controller with SPI Interface
Figure 17. Data channel format
9.5. Invalid Qualified Data
The SX8652 returns 0xFFFF data in case of invalid qualified data.
This occurs:
When the SX8652 has read all the channel data in the FIFO
When a conversion is done without a pen being detected.
NCS
SCLK
DIN
DOUT
11 10 9 8 7 6 5 4 3 2 1 0
0 0 1
11 10 9 8 7 6 5 4 3 2 1 0
Reading Channel Data
NCS
SCLK
DIN
DOUT
7 6 5 4 3 2 1 0
0 1 0
RA[4:0]
Reading Register
7 6 5 4 3 2 1 0
NCS
SCLK
DIN
DOUT
0 0 0
RA[4:0]
Writing Register
7 6 5 4 3 2 1 0
Multiple Write
Single Write
Multiple Read
Single Read
Multiple Read
Single Read
NCS
SCLK
DIN
DOUT
Other command
CMD
Unknown bit
Multiple access
Single access
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