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SN74ALVCH245 데이터시트(PDF) 4 Page - Texas Instruments |
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SN74ALVCH245 데이터시트(HTML) 4 Page - Texas Instruments |
4 / 8 page SN74ALVCH245 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SCES119D – JULY 1997 – REVISED MAY 1999 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC MIN TYP† MAX UNIT IOH = –100 µA 1.65 V to 3.6 V VCC–0.2 IOH = –4 mA 1.65 V 1.2 IOH = –6 mA 2.3 V 2 VOH 2.3 V 1.7 V IOH = –12 mA 2.7 V 2.2 3 V 2.4 IOH = –24 mA 3 V 2 IOL = 100 µA 1.65 V to 3.6 V 0.2 IOL = 4 mA 1.65 V 0.45 VOL IOL = 6 mA 2.3 V 0.4 V VOL IOL =12mA 2.3 V 0.7 V IOL = 12 mA 2.7 V 0.4 IOL = 24 mA 3 V 0.55 II VI = VCC or GND 3.6 V ±5 µA VI = 0.58 V 1.65 V 25 VI = 1.07 V 1.65 V –25 VI = 0.7 V 2.3 V 45 II(hold) VI = 1.7 V 2.3 V –45 µA () VI = 0.8 V 3 V 75 VI = 2 V 3 V –75 VI = 0 to 3.6 V‡ 3.6 V ±500 IOZ§ VO = VCC or GND, 3.6 V ±10 µA ICC VI = VCC or GND, IO = 0 3.6 V 10 µA ∆ICC One input at VCC – 0.6 V, Other inputs at VCC or GND 3 V to 3.6 V 750 µA Ci Control inputs VI = VCC or GND 3.3 V 4.5 pF Cio A or B ports VO = VCC or GND 3.3 V 12 pF † All typical values are at VCC = 3.3 V, TA = 25°C. ‡ This is the bus-hold maximum dynamic current. It is the minimum overdrive current required to switch the input from one state to another. § For I/O ports, the parameter IOZ includes the input leakage current. switching characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figures 1 through 3) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 1.8 V ± 0.15 V VCC = 2.5 V ± 0.2 V VCC = 2.7 V VCC = 3.3 V ± 0.3 V UNIT (INPUT) (OUTPUT) MIN MAX MIN MAX MIN MAX MIN MAX tpd A or B B or A 1.5 6 1 3.5 3.6 1.3 3.4 ns ten OE A or B 3.4 8.6 2 6 6.3 1.6 5.5 ns tdis OE A or B 2.7 8 1 4.8 5.3 1.7 5.5 ns operating characteristics, TA = 25°C PARAMETER TEST VCC = 1.8 V VCC = 2.5 V VCC = 3.3 V UNIT PARAMETER CONDITIONS TYP TYP TYP UNIT C d Power dissipation capacitance Outputs enabled CL = 0, 25 28 31 pF Cpd per transceiver Outputs disabled L , f = 10 MHz 0 0 0 pF |
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