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SN74ALS857 Fiches technique(PDF) 5 Page - Texas Instruments |
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SN74ALS857 Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 11 page SN54ALS857, SN74ALS857 HEX 2-TO-1 UNIVERSAL MULTIPLEXERS WITH 3-STATE OUTPUTS SDAS170A – DECEMBER 1982 – REVISED JANUARY 1995 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics (see Figure 1) PARAMETER† FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX‡ UNIT SN54ALS857 SN74ALS857 MIN MAX MIN MAX A or B (COMP high) Y (inverting) 2 35 4 25 A or B (COMP low) Y (noninverting) 2 27 4 18 tpd S0 or S1 Y 2 37 7 33 ns tpd COMP Y 2 26 6 18 ns A or B OPER 0 2 45 5 37 S0 to S1 OPER = 0 2 30 5 23 ten S0 to S1 Y 2 38 7 35 ns tdis S0 to S1 Y 2 43 2 23 ns ten COMP Y 2 37 8 24 ns tdis COMP Y 2 45 6 21 ns ten S0 OPER 0 2 29 6 20 ns tdis S0 OPER = 0 2 42 11 27 ns ten S1 OPER 0 2 28 6 25 ns tdis S1 OPER = 0 2 37 3 19 ns ten COMP OPER 0 2 43 9 25 ns tdis COMP OPER = 0 2 36 6 20 ns † tpd = tPLH or tPHL, ten = tPZH or tPZL, tdis = tPHZ or tPLZ ‡ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. |
Numéro de pièce similaire - SN74ALS857 |
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Description similaire - SN74ALS857 |
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