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SX8649 Datasheet(PDF) 8 Page - Semtech Corporation

Part # SX8649
Description  Ultra Low Power, Capacitive Button and Wheel Touch Controller (8 sensors) with Enhanced LED Drivers
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SX8649 Datasheet(HTML) 8 Page - Semtech Corporation

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ADVANCED COMMUNICATIONS & SENSING
DATASHEET
Revision 7_6, February 10
© 2010 Semtech Corp.
www.semtech.com
8
SX8649
Ultra Low Power, Capacitive Button and Wheel
Touch Controller (8 sensors) with Enhanced LED Drivers
2.4
Electrical Specifications
All values are valid within the operating conditions unless otherwise specified.
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Current consumption
Active mode, average
IOP,active
30ms scan period,
8 sensors enabled,
minimum sensitivity
175
225
uA
Doze mode, average
IOP,Doze
195ms scan period,
8 sensors enabled,
minimum sensitivity
80
110
uA
Sleep
IOP,sleep
I2C and GPI listening,
sensors disabled
8
17
uA
GPIO, set as Input, RESETB, SCL, SDA
Input logic high
VIH
0.7*VDD
VDD + 0.3V
V
Input logic low
VIL
VSS applied to GND pins
VSS - 0.3V
0.8
V
Input leakage current
LI
CMOS input
±1
uA
Pull up resistor
RPU
when enabled
660
k
Ω
Pull down resistor
RPD
when enabled
660
k
Ω
GPIO set as Output, INTB, SDA
Output logic high
VOH
IOH <4mA
VDD-0.4
V
Output logic low
VOL
IOL,GPIO<12mA
IOL,SDA,INTB<4mA
0.4
V
Start-up
Power up time
tpor
time between rising edge
VDD and rising INTB
150
ms
RESETB
Pulse width
tres
50
ns
External components
Capacitor between VDIG, GND
Cvdig
type 0402, tolerance +/-50%
100
nF
Capacitor between VANA, GND
Cvana
type 0402, tolerance +/-50%
100
nF
Capacitor between CP, CN
Cint
type 0402, tolerance +/-10%
1
nF
Capacitor between VDD, GND
Cvdd
type 0402, tolerance +/-50%
100
nF
Table 5
Electrical Specifications


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