SX8657IWLTRT Semtech, SX8657IWLTRT Datasheet - Page 40

• Manufacturer Part Number: SX8657IWLTRT
• Description: 58T7570
• Manufacturer: Semtech

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

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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