Datenblatt-Suchmaschine für elektronische Bauteile |
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SN74AHC244QDWRQ1 Datenblatt(PDF) 4 Page - Texas Instruments |
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SN74AHC244QDWRQ1 Datenblatt(HTML) 4 Page - Texas Instruments |
4 / 13 page SN74AHC244Q1 OCTAL BUFFER/DRIVER WITH 3STATE OUTPUTS SCLS526A − AUGUST 2003 − REVISED APRIL 2008 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER FROM TO LOAD TA = 25°C MIN MAX UNIT PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE MIN TYP MAX MIN MAX UNIT tPLH A Y CL = 15 pF 5.8 8.4 1 10 ns tPHL A Y CL = 15 pF 5.8 8.4 1 10 ns tPZH OE Y CL = 15 pF 6.6 10.6 1 12.5 ns tPZL OE Y CL = 15 pF 6.6 10.6 1 12.5 ns tPHZ OE Y CL = 15 pF 5 9.7 1 11 ns tPLZ OE Y CL = 15 pF 5 9.7 1 11 ns tPLH A Y CL = 50 pF 8.3 11.9 1 13.5 ns tPHL A Y CL = 50 pF 8.3 11.9 1 13.5 ns tPZH OE Y CL = 50 pF 9.1 14.1 1 16 ns tPZL OE Y CL = 50 pF 9.1 14.1 1 16 ns tPHZ OE Y CL = 50 pF 10.3 14 1 16 ns tPLZ OE Y CL = 50 pF 10.3 14 1 16 ns switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER FROM TO LOAD TA = 25°C MIN MAX UNIT PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE MIN TYP MAX MIN MAX UNIT tPLH A Y CL = 15 pF 3.9 5.5 1 6.5 ns tPHL A Y CL = 15 pF 3.9 5.5 1 6.5 ns tPZH OE Y CL = 15 pF 4.7 7.3 1 8.5 ns tPZL OE Y CL = 15 pF 4.7 7.3 1 8.5 ns tPHZ OE Y CL = 15 pF 5 7.2 1 8.5 ns tPLZ OE Y CL = 15 pF 5 7.2 1 8.5 ns tPLH A Y CL = 50 pF 5.4 7.5 1 8.5 ns tPHL A Y CL = 50 pF 5.4 7.5 1 8.5 ns tPZH OE Y CL = 50 pF 6.2 9.3 1 10.5 ns tPZL OE Y CL = 50 pF 6.2 9.3 1 10.5 ns tPHZ OE Y CL = 50 pF 6.7 9.2 1 10.5 ns tPLZ OE Y CL = 50 pF 6.7 9.2 1 10.5 ns noise characteristics, VCC = 5 V, CL = 50 pF, TA = 25°C (see Note 4) PARAMETER MIN TYP MAX UNIT VOL(P) Quiet output, maximum dynamic VOL 0.5 V VOL(V) Quiet output, minimum dynamic VOL −0.2 V VOH(V) Quiet output, minimum dynamic VOH 4.8 V VIH(D) High-level dynamic input voltage 3.5 V VIL(D) Low-level dynamic input voltage 1.5 V NOTE 4: Characteristics are for surface-mount packages only. |
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