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PCA9546ADWT Datasheet(PDF) 9 Page - Texas Instruments |
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PCA9546ADWT Datasheet(HTML) 9 Page - Texas Instruments |
9 / 27 page www.ti.com Electrical Characteristics PCA9546A 4-CHANNEL I2C AND SMBus SWITCH WITH RESET FUNCTION SCPS148E – OCTOBER 2005 – REVISED JANUARY 2008 over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC MIN TYP(1) MAX UNIT VPOR Power-on reset voltage(2) No load, VI = VCC or GND VPOR 1.6 2.1 V 5 V 3.6 4.5 V to 5.5 V 2.6 4.5 3.3 V 1.9 Vpass Switch output voltage VSWin = VCC, ISWout = –100 µA V 3 V to 3.6 V 1.6 2.8 2.5 V 1.5 2.3 V to 2.7 V 1.1 2 VOL = 0.4 V 3 7 IOL SCL, SDA 2.3 V to 5.5 V mA VOL = 0.6 V 6 10 SCL, SDA ±1 SC3–SC0, SD3–SD0 ±1 II VI = VCC or GND 2.3 V to 5.5 V µA A2–A0 ±1 RESET ±1 5.5 V 3 12 Operating mode fSCL = 100 kHz VI = VCC or GND, IO = 0 3.6 V 3 11 2.7 V 3 10 5.5 V 0.3 1 ICC Low inputs VI = GND, IO = 0 3.6 V 0.1 1 µA 2.7 V 0.1 1 Standby mode 5.5 V 0.3 1 High inputs VI = VCC, IO = 0 3.6 V 0.1 1 2.7 V 0.1 1 SCL or SDA input at 0.6 V, 8 15 Other inputs at VCC or GND Supply-current ΔICC SCL, SDA µA change SCL or SDA input at VCC – 0.6 V, 2.3 V to 5.5 V 8 15 Other inputs at VCC or GND A2–A0 4.5 6 Ci VI = VCC or GND 2.3 V to 5.5 V pF RESET 4.5 5.5 SCL, SDA 15 19 Cio(OFF) (3) VI = VCC or GND, Switch OFF 2.3 V to 5.5 V pF SC3–SC0, SD3–SD0 6 8 4.5 V to 5.5 V 4 9 16 VO = 0.4 V, IO = 15 mA RON Switch on-state resistance 3 V to 3.6 V 5 11 20 Ω VO = 0.4 V, IO = 10 mA 2.3 V to 2.7 V 7 16 45 (1) All typical values are at nominal supply voltage (2.5-V, 3.3-V, or 5-V VCC), TA = 25°C. (2) The power-on reset circuit resets the I2C bus logic with VCC < VPOR. VCC must be lowered to 0.2 V to reset the device. (3) Cio(ON) depends on internal capacitance and external capacitance added to the SCn lines when channels(s) are ON. Copyright © 2005–2008, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Link(s): PCA9546A |
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