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SN74CB3Q3245PWR Arkusz danych(PDF) 5 Page - Texas Instruments |
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SN74CB3Q3245PWR Arkusz danych(HTML) 5 Page - Texas Instruments |
5 / 20 page www.ti.com Electrical Characteristics (1) Switching Characteristics SN74CB3Q3245 8-BIT FET BUS SWITCH 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH SCDS124B – JULY 2003 – REVISED MARCH 2005 over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP(2) MAX UNIT VIK VCC = 3.6 V, II = –18 mA –1.8 V IIN Control inputs VCC = 3.6 V, VIN = 0 to 5.5 V ±1 µA VO = 0 to 5.5 V, Switch OFF, IOZ(3) VCC = 3.6 V, ±1 µA VI = 0, VIN = VCC or GND Ioff VCC = 0, VO = 0 to 5.5 V, VI = 0 1 µA II/O = 0, ICC VCC = 3.6 V, VIN = VCC or GND 1 2 mA Switch ON or OFF, ∆I CC (4) Control inputs VCC = 3.6 V, One input at 3 V, Other inputs at VCC or GND 30 µA VCC = 3.6 V, A and B ports open, Per control mA/ ICCD(5) 0.30 0.35 input MHz Control input switching at 50% duty cycle Cin Control inputs VCC = 3.3 V, VIN = 5.5 V, 3.3 V, or 0 2.5 3.5 pF Switch OFF, Cio(OFF) VCC = 3.3 V, VI/O = 5.5 V, 3.3 V, or 0 3.5 5 pF VIN = VCC or GND, Switch ON, Cio(ON) VCC = 3.3 V, VI/O = 5.5 V, 3.3 V, or 0 9 11 pF VIN = VCC or GND, VI = 0, IO = 30 mA 4 8 VCC = 2.3 V, TYP at VCC = 2.5 V VI = 1.7 V, IO = –15 mA 4.5 9 ron(6) Ω VI = 0, IO = 30 mA 4 6 VCC = 3 V VI = 2.4 V, IO = –15 mA 4 8 (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) This parameter specifies the dynamic power-supply current associated with the operating frequency of a single control input (see Figure 2). (6) Measured by the voltage drop between the 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 3) VCC = 2.5 V VCC = 3.3 V FROM TO ± 0.2 V ± 0.3 V PARAMETER UNIT (INPUT) (OUTPUT) MIN MAX MIN MAX fOE(1) OE A or B 10 20 MHz tpd(2) A or B B or A 0.12 0.20 ns ten OE A or B 1.5 7.5 1.5 6.5 ns tdis OE A or B 1 6.5 1 6.5 ns (1) Maximum switching frequency for control input (VO > VCC, VI = 5 V, RL ≥ 1 MΩ, CL = 0) (2) 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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