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SN74AHCT244DW Datasheet(PDF) 4 Page - Texas Instruments |
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SN74AHCT244DW Datasheet(HTML) 4 Page - Texas Instruments |
4 / 17 page SN54AHCT244, SN74AHCT244 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCLS228L – OCTOBER 1995 – REVISED JULY 2003 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 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 SN54AHCT244 SN74AHCT244 UNIT PARAMETER (INPUT) (OUTPUT) CAPACITANCE MIN TYP MAX MIN MAX MIN MAX UNIT tPLH A Y CL =15 pF 5.4* 7.4* 1* 8.5* 1 8.5 ns tPHL A Y CL = 15 pF 5.4* 7.4* 1* 8.5* 1 8.5 ns tPZH OE Y CL =15 pF 7.7* 10.4* 1* 12* 1 12 ns tPZL OE Y CL = 15 pF 7.7* 10.4* 1* 12* 1 12 ns tPHZ OE Y CL =15 pF 5* 9.4* 1* 10* 1 10 ns tPLZ OE Y CL = 15 pF 5* 9.4* 1* 10* 1 10 ns tPLH A Y CL =50 pF 5.9 8.4 1 9.5 1 9.5 ns tPHL A Y CL = 50 pF 5.9 8.4 1 9.5 1 9.5 ns tPZH OE Y CL =50 pF 8.2 11.4 1 13 1 13 ns tPZL OE Y CL = 50 pF 8.2 11.4 1 13 1 13 ns tPHZ OE Y CL =50 pF 8.8 11.4 1 13 1 13 ns tPLZ OE Y CL = 50 pF 8.8 11.4 1 13 1 13 ns tsk(o) CL = 50 pF 1** 1 ns * On products compliant to MIL-PRF-38535, this parameter is not production tested. ** On products compliant to MIL-PRF-38535, this parameter does not apply. noise characteristics, VCC = 5 V, CL = 50 pF, TA = 25°C (see Note 4) PARAMETER SN74AHCT244 UNIT PARAMETER MIN TYP MAX UNIT VOH(V) Quiet output, minimum dynamic VOH 4.1 V VIH(D) High-level dynamic input voltage 2 V VIL(D) Low-level dynamic input voltage 0.8 V NOTE 4: Characteristics are for surface-mount packages only. operating characteristics, VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT Cpd Power dissipation capacitance No load, f = 1 MHz 8.2 pF |
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