Smart ITO Panel Solution

The 20 ITO touch keys rice cooker reference design integrates an LCD display, touch key controller, and voice prompt solution. The reference design has the advantage of LCD drive capability and touch key sensitivity for ITO material. Furthermore, by using NuTool-LCDView, we can easily emulate touch events and LCD display contents on a PC via the SWD interface. The developer can develop and validate products without the LCD panel.

Feature

-	Saves BOM cost and simplifies PCB layout
	- Three-in-one MCU: system control, LCD display control, and touch key control
	- LCD controller built-in DH1/DH2 capacitance and charge pump features to support VLCD
-	Easy to use
	- Supports NuTool-LCDView to emulate touch events and LCD display
	- Supports voice prompt by using Nuvoton ISD ChipCorder – ISD2361
-	High driving capability and high touch sensitivity
	- LCD controller can driver up to 10 cm x 10 cm panel
	- ITO-based touch key with high touch sensitivity

Specifications

M258 (32-bit Arm® Cortex®-M23)
-	Touch key controller
	- IEC 61000-4-6 10 Vrms
	- Generates code of calibration parameters and duplicate the parameter on the same hardware
	- High touch sensitivity and high-noise immunity
	- Supports NuTool-NuSenadj to configure touch key parameters
-	LCD controller
	- Charge pump voltage range is from 3.0 V to 5.2 V
	- Display remain in power down mode
	- Driver up to 10 cm x 10 cm panel

System Block Diagram

Nuvoton-Smart ITO Panel Solution

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Smart ITO Panel Solution

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