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SN74CBTLV3857DBQR 데이터시트(PDF) 3 Page - Texas Instruments |
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SN74CBTLV3857DBQR 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 10 page SN74CBTLV3857 LOW VOLTAGE 10BIT FET BUS SWITCH WITH INTERNAL PULLDOWN RESISTORS SCDS085E − OCTOBER 1998 − REVISED OCTOBER 2003 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 3) MIN NOM MAX UNIT VCC Supply voltage 3 3.3 3.6 V VREF Reference voltage (0.38 × VCC) 1.15 1.25 1.35 V VIH AC high-level control input voltage VREF + 350 mV V VIL AC low-level control input voltage VREF − 350 mV V VIH DC high-level control input voltage VREF + 180 mV V VIL DC low-level control input voltage VREF − 180 mV V TA Operating free-air temperature −40 85 °C NOTE 3: All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK VCC = 3 V, II = −18 mA −1.2 V OE ±1 mA II A port VCC = 3.6 V, VI = VCC or GND ±5 µA II B port VCC = 3.6 V, VI = VCC or GND ±1 mA VREF ±5 µA ICC VCC = 3.6 V, IO = 0, VI = VCC or GND 25 mA Ci Control inputs VI = 3 V or 0 3.5 pF Cio(OFF) VO = 3 V or 0, OE = VCC 5 pF VI = 0, II = 24 mA 5 8 ron‡ VCC = 3 V VI = 0.9 V, II = 24 mA 6 11 Ω ron‡ VCC = 3 V VI = 1.25 V, II = 24 mA 7 13 Ω VI = 1.6 V, II = 24 mA 9 40 roff‡ VCC = 0 1 M Ω roff‡ VCC = 3 V to 3.6 V, VI = 1.65 V, OE = VCC 1 M Ω † All typical values are at VCC = 3.3 V, TA = 25°C. ‡ Measured by the voltage drop between the A and B terminals at the indicated current through the switch. Resistance is determined by the lower of the voltages of the two (A or B) terminals. switching characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 3.3 V ± 0.3 V UNIT PARAMETER (INPUT) (OUTPUT) MIN MAX UNIT tpd§ A or B B or A 0.25 ns ten OE A or B 1.4 4.2 ns tdis OE A or B 1.4 4.8 ns § The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance, when driven by an ideal voltage source (zero output impedance). |
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