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SN74CBT3305CPW データシート(PDF) 4 Page - Texas Instruments |
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SN74CBT3305CPW データシート(HTML) 4 Page - Texas Instruments |
4 / 16 page www.ti.com Electrical Characteristics (1) Switching Characteristics Undershoot Characteristics SN74CBT3305C DUAL FET BUS SWITCH 5-V BUS SWITCH WITH –2-V UNDERSHOOT PROTECTION SCDS125B – SEPTEMBER 2003 – REVISED AUGUST 2005 over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP(2) MAX UNIT VIK Control inputs VCC = 4.5 V, IIN = –18 mA –1.8 V 0 mA > II ≥ –50 mA, VIKU Data inputs VCC = 5 V, Switch OFF –2 V VIN = VCC or GND, IIN Control inputs VCC = 5.5 V, VIN = VCC or GND ±1 µA VO = 0 to 5.5 V, Switch OFF, IOZ(3) VCC = 5.5 V, ±10 µA VI = 0, VIN = VCC or GND Ioff VCC = 0, VO = 0 to 5.5 V, VI = 0 10 µA II/O = 0, ICC VCC = 5.5 V, Switch ON or OFF 3 µA VIN = VCC or GND, ∆I CC (4) Control inputs VCC = 5.5 V, One input at 3.4 V, Other inputs at VCC or GND 2.5 mA Cin Control inputs VIN = 3 V or 0 3 pF Cio(OFF) VI/O = 3 V or 0, Switch OFF, VIN = VCC or GND 5 pF Cio(ON) VI/O = 3 V or 0, Switch ON, VIN = VCC or GND 12.5 pF VCC = 4 V, VI = 2.4 V, IO = –15 mA 8 12 TYP at VCC = 4 V IO = 64 mA 3 6 ron(5) Ω VI = 0 VCC = 4.5 V IO = 30 mA 3 6 VI = 2.4 V, IO = –15 mA 5 10 (1) VIN and IIN refer to control inputs. VI, VO, II, and IO refer to data pins. (2) All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C. (3) For I/O ports, the parameter IOZ includes the input leakage current. (4) This is the increase in supply current for each input that is at the specified voltage level, rather than VCC or GND (5) Measured by the voltage drop between the A and B terminals at the indicate current through the switch. ON-state resistance is determined by the lower of the voltages of the two (A or B) terminals. over recommended operating free-air temperature range (unless otherwise noted) (see Figure 3) VCC = 5 V VCC = 4 V FROM TO ± 0.5 V PARAMETER UNIT (INPUT) (OUTPUT) MIN MAX MIN MAX tpd(1) A or B B or A 0.24 0.15 ns ten OE A or B 4.4 1.5 4.1 ns tdis OE A or B 5.1 1.5 4.8 ns (1) 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). See Figure 1 and Figure 2 PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT VOUTU VCC = 5.5 V, Switch OFF, VIN = VCC or GND 2 VOH – 0.3 V (1) All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C. 4 |
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