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SX8649 Datasheet(PDF) 8 Page - Semtech Corporation |
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SX8649 Datasheet(HTML) 8 Page - Semtech Corporation |
8 / 77 page 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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