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74CB3T3253DGVRE4 データシート(PDF) 5 Page - Texas Instruments |
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74CB3T3253DGVRE4 データシート(HTML) 5 Page - Texas Instruments |
5 / 19 page www.ti.com Electrical Characteristics (1) Switching Characteristics SN74CB3T3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V TOLERANT LEVEL SHIFTER SCDS148 – OCTOBER 2003 – REVISED JUNE 2005 over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP(2) MAX UNIT VIK VCC = 3 V, II = –18 mA –1.2 V VOH See Figure 3 and Figure 4 IIN Control inputs VCC = 3.6 V, VIN = 3.6 V to 5.5 V or GND ±10 µA VI = VCC – 0.7 V to 5.5 V ±20 VCC = 3.6 V, Switch ON, II VI = 0.7 V to VCC – 0.7 V –40 µA VIN = VCC or GND VI = 0 to 0.7 V ±5 VCC = 3.6 V, VO = 0 to 5.5 V, VI = 0, IOZ(3) ±10 µA Switch OFF, VIN = VCC or GND Ioff VCC = 0, VO = 0 to 5.5 V, VI = 0 10 µA VI = VCC or GND 20 VCC = 3.6 V, II/O = 0, Switch ON or OFF, ICC µA VIN = VCC or GND VI = 5.5 V 20 VCC = 3 V to 3.6 V, One input at VCC – 0.6 V, ∆I CC (4) Control inputs 300 µA Other inputs at VCC or GND Cin Control inputs VCC = 3.3 V, VIN = VCC or GND 3 pF A port 12 VCC = 3.3 V, VI/O = 5.5 V, 3.3 V, or GND, Cio(OFF) pF Switch OFF, VIN = VCC or GND B port 5 VI/O = 5.5 V or 3.3 V 10 A port VI/O = GND 22 Cio(ON) VCC = 3.3 V, Switch ON, VIN = VCC or GND pF VI/O = 5.5 V or 3.3 V 4 B port VI/O = GND 22 IO = 24 mA 5 8 VCC = 2.3 V, TYP at VCC = 2.5 V, VI = 0 IO = 16 mA 5 8 ron(5) Ω IO = 64 mA 5 7 VCC = 3 V, VI = 0 IO = 32 mA 5 7 (1) VIN and IIN refer to control inputs. VI, VO, II, and IO refer to data pins. (2) All typical values are at VCC = 3.3 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 TTL voltage level, rather than VCC or GND. (5) Measured by the voltage drop between A and B terminals at the indicated 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 2) VCC = 2.5 V VCC = 3.3 V FROM TO ± 0.2 V ± 0.3 V PARAMETER UNIT (INPUT) (OUTPUT) MIN MAX MIN MAX tpd(1) A or B B or A 0.15 0.25 ns tpd(s) S A 1 10.5 1 8 ns S B 1 10 1 8 ten ns OE A or B 1 8.5 1 8 S B 1 7.5 1 8.5 tdis ns OE A or B 1 6.5 1 8 (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). 5 |
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