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SNJ54ALS257AJ Datasheet(PDF) 6 Page - Texas Instruments |
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SNJ54ALS257AJ Datasheet(HTML) 6 Page - Texas Instruments |
6 / 20 page SN54ALS257A, SN54ALS258A, SN74ALS257A, SN74ALS258A, SN74AS257, SN74AS258 QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS WITH 3STATE OUTPUTS SDAS124C − APRIL 1982 − REVISED AUGUST 1996 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN74AS257 SN74AS258 UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = −18 mA −1.2 V VOH VCC = 4.5 V to 5.5 V, IOH = −2 mA VCC −2 V VOH VCC = 4.5 V, IOH = −15 mA 2.4 3.2 V VOL VCC = 4.5 V, IOL = 48 mA 0.35 0.5 V IOZH VCC = 5.5 V, VO = 2.7 V 50 µA IOZL VCC = 5.5 V, VO = 0.4 V −50 µA II A, B, or OE VCC = 5.5 V, VI = 7 V 0.1 mA II A/B VCC = 5.5 V, VI = 7 V 0.2 mA IIH A, B, or OE VCC = 5.5 V, VI = 2.7 V 20 A IIH A/B VCC = 5.5 V, VI = 2.7 V 40 µA IIL A, B, or OE VCC = 5.5 V, VI = 0.4 V −0.5 mA IIL A/B VCC = 5.5 V, VI = 0.4 V −1 mA IO‡ VCC = 5.5 V, VO = 2.25 V −30 −112 mA Outputs high 12.1 19.7 SN74AS257 VCC = 5.5 V Outputs low 19 30.6 ICC SN74AS257 VCC = 5.5 V Outputs disabled 19.7 31.9 mA ICC Outputs high 8.4 13.5 mA SN74AS258 VCC = 5.5 V Outputs low 15.2 24.6 SN74AS258 VCC = 5.5 V Outputs disabled 15.5 25.2 † All typical values are at VCC = 5 V, TA = 25°C. ‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. |
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