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AK4160 Datasheet(PDF) 1 Page - Asahi Kasei Microsystems

Part # AK4160
Description  16-channel Capacitive Touch Sensor IC
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Manufacturer  AKM [Asahi Kasei Microsystems]
Direct Link  http://www.akm.com
Logo AKM - Asahi Kasei Microsystems

AK4160 Datasheet(HTML) 1 Page - Asahi Kasei Microsystems

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[AK4160]
MS1313-E-01
2011/11
- 1 -
GENERAL DESCRIPTION
The AK4160 is a low operating voltage and low power consumption 16-channel capacitive touch sensor.
Maximum 8 channels out of the 16-channel can be configured to LED drive or GPIO. The AK4160 has a
channel independent automatic correct function of environmental drifts for each sense input. It reduces
false detection by continuous calibration of the internal reference value in the situation when the input
capacitance of the touch switch is changed by the external factors such as hydrothermal conditions. The
automatic initial setting function sets the charge current and charge time according to the size and the
shape of a touch switch. The AK4160 can be configured via serial interfaces, it is suitable for mobile
phones, PCs and home electric applications.
FEATURE
Up to 16 capacitive sensor inputs
Up to 8 general purpose inputs/outputs with PWM control for LED
Automatic initial setting function for the charge current and time
Independent automatic environmental drifts correct function for each
sense terminal
Independent threshold configuration for each sense terminal
Selectable multi touch feature
Integrated Median Averaging Filter
Selectable 3 interrupt outputs that be able to use as GPIOs
Reset Input pin
I2C Serial Interface
10 bit SAR A/D Converter with S/H circuit
Integrated Regulator
Low Power Consumption: Typ. 3.4uA
(Sampling rate=512ms, 16ch Sensor input Active)
Power Down Current: Typ. 1.0uA
Low Power Operation: VDD = 1.71V ~ 3.6V
Operating Temperature: Ta = -40 ~ 85
°C
Package: 28pin QFN (4.0mm x 4.0mm, pitch 0.4mm)
I
2C-bus is a trademark of NXP B.V.
AK4160
16-channel Capacitive Touch Sensor IC


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