SX8652ICSTRT Semtech, SX8652ICSTRT Datasheet - Page 12

• Manufacturer Part Number: SX8652ICSTRT
• Description: 4/5-wire Resistive Touch Screen Controller (SPI)
• Manufacturer: Semtech

3.3.2. NRST
Figure 10. Simplified diagram of NRST
3.4. Power Management Pins
Figure 11. Simplified diagram of VDD and GND
Revision V1.6/July 2010
©2010 Semtech Corp.
ADVANCED COMMUNICATIONS & SENSING
GND
VDD
NRST
VDD
VDD
Management
Power
Control
15kV ESD Low Power 4-Wire / 5-Wire Resistive
Page 12
VDD and GND are power pins.
The VDD has ESD protection to GROUND.
The GND has ESD protection to VDD.
Figure 11 shows a simplified diagram of the VDD pin.
Touchscreen Controller with SPI Interface
The NRST pin is an active low input that
provides a hardware reset of the SX8652's
control circuitry.
The NRST pin is protected to GROUND and
have an internal pull-up to enable interfacing
with devices at different supply voltages.
Figure 10 shows a simplified diagram of the
NRST pin.
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SX8652