SX8657IWLTRT Semtech, SX8657IWLTRT Datasheet - Page 40
SX8657IWLTRT
Manufacturer Part Number
SX8657IWLTRT
Description
58T7570
Manufacturer
Semtech
Datasheet
1.SX8657IWLTRT.pdf
(61 pages)
Specifications of SX8657IWLTRT
Controller Type
Resistive Touch Screen
Ic Interface Type
I2C, Serial
Supply Voltage Range
2.3V To 3.6V
Operating Temperature Range
-40°C To +85°C
No. Of Pins
20
Resolution (bits)
12bit
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ADVANCED COMMUNICATIONS & SENSING
9
The chip has three auxiliary pins which can be used:
Rev 1 – 25
1. By the touchscreen interface when using a 5-wire touchscreen (WIPER=AUX1)
2. By the proximity sensing interface (PROXSENSORCON and PROXSHIELDCON) to use an external
3. By the host (RegAux0-1) to monitor any RegStat and/or RegIrqSrc bits in real time without having to use
A
UXILIARY
sensor and/or shield instead of the touchscreen’s plates
NIRQ or perform I2C polling.
th
July 2011
P
INS
(AUX1/AUX2/AUX3)
Resistive Touchscreen Controller with Proximity Sensing
40
SX8657/SX8658
Haptics Enabled 4/5-Wire
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