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SN74AHC257PW Scheda tecnica(PDF) 4 Page - Texas Instruments |
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SN74AHC257PW Scheda tecnica(HTML) 4 Page - Texas Instruments |
4 / 9 page SN54AHC257, SN74AHC257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SCLS349C – MAY 1996 – REVISED JULY 1998 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C SN54AHC257 SN74AHC257 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT 2 V 1.9 2 1.9 1.9 IOH = –50 mA 3 V 2.9 3 2.9 2.9 VOH 4.5 V 4.4 4.5 4.4 4.4 V OH IOH = –4 mA 3 V 2.58 2.48 2.48 IOH = –8 mA 4.5 V 3.94 3.8 3.8 2 V 0.1 0.1 0.1 IOL = 50 mA 3 V 0.1 0.1 0.1 VOL 4.5 V 0.1 0.1 0.1 V OL IOL = 4 mA 3 V 0.36 0.5 0.44 IOL = 8 mA 4.5 V 0.36 0.5 0.44 II VI = VCC or GND 5.5 V ±0.1 ±1 ±1 mA ICC VI = VCC or GND, IO = 0 5.5 V 4 40 40 mA IOZ VO = VCC or GND 5.5 V ±0.25 ±2.5 ±2.5 mA Ci VI = VCC or GND 5 V pF |
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