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SN74AHC157 Datasheet(PDF) 5 Page - Texas Instruments |
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SN74AHC157 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 19 page SN54AHC157, SN74AHC157 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS SCLS345I – MAY 1996 – REVISED JULY 2003 5 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 SN54AHC157 SN74AHC157 UNIT PARAMETER (INPUT) (OUTPUT) CAPACITANCE MIN TYP MAX MIN MAX MIN MAX UNIT tPLH AorB Y CL =15 pF 4.1* 6.4* 1* 7.5* 1 7.5 ns tPHL A or B Y CL = 15 pF 4.1* 6.4* 1* 7.5* 1 7.5 ns tPLH A/B Y CL =15 pF 5.3* 8.1* 1* 9.5* 1 9.5 ns tPHL A/B Y CL = 15 pF 5.3* 8.1* 1* 9.5* 1 9.5 ns tPLH G Y CL =15 pF 5.6* 8.6* 1* 10* 1 10 ns tPHL G Y CL = 15 pF 5.6* 8.6* 1* 10* 1 10 ns tPLH AorB Y CL =50 pF 5.6 8.4 1 9.5 1 9.5 ns tPHL A or B Y CL = 50 pF 5.6 8.4 1 9.5 1 9.5 ns tPLH A/B Y CL =50 pF 6.8 10.1 1 11.5 1 11.5 ns tPLH A/B Y CL = 50 pF 6.8 10.1 1 11.5 1 11.5 ns tPLH G Y CL =50 pF 7.1 10.6 1 12 1 12 ns tPHL G Y CL = 50 pF 7.1 10.6 1 12 1 12 ns * On products compliant to MIL-PRF-38535, this parameter is not production tested. noise characteristics VCC = 5 V, CL = 50 pF, TA = 25°C (see Note 5) PARAMETER SN74AHC157 UNIT PARAMETER MIN TYP MAX UNIT VOL(P) Quiet output, maximum dynamic VOL 0.8 V VOL(V) Quiet output, minimum dynamic VOL –0.8 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 5: 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 11 pF |
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