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74AHCT157PWDH Datasheet(PDF) 10 Page - NXP Semiconductors |
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74AHCT157PWDH Datasheet(HTML) 10 Page - NXP Semiconductors |
10 / 16 page 1999 Sep 24 10 Philips Semiconductors Product specification Quad 2-input multiplexer 74AHC157; 74AHCT157 Type 74AHCT157 GND = 0 V; tr =tf ≤ 3.0 ns. Note 1. Typical values at VCC = 5.0 V. SYMBOL PARAMETER TEST CONDITIONS Tamb (°C) UNIT WAVEFORMS CL 25 −40 to +85 −40 to +125 MIN. TYP. MAX. MIN. MAX. MIN. MAX. VCC = 4.5 to 5.5 V; note 1 tPHL/tPLH propagation delay nI0 to nY; nI1 to nY see Figs 7 and 8 15 pF − 3.2 6.4 1.0 7.5 1.0 8.0 ns propagation delay StonY − 3.7 8.6 1.0 10.0 1.0 11.0 ns propagation delay EtonY see Figs 6 and 8 − 4.7 8.1 1.0 9.5 1.0 10.5 ns propagation delay nI0 to nY; nI1 to nY see Figs 7 and 8 50 pF − 4.6 8.7 1.0 9.8 1.0 11.0 ns propagation delay StonY − 5.2 10.4 1.0 12.0 1.0 13.0 ns propagation delay EtonY see Figs 6 and 8 − 6.7 10.6 1.0 12.0 1.0 13.5 ns AC WAVEFORMS Fig.6 The enable input (E) to output (nY) propagation delays. FAMILY VI INPUT REQUIREMENTS VM(1) INPUT VM(1) OUTPUT AHC GND to VCC 50% VCC 50% VCC AHCT GND to 3.0 V 1.5 V 50% VCC handbook, halfpage MNA485 tPHL tPLH VM (1) VM (1) E INPUT nY OUTPUT GND VCC VOH VOL Fig.7 The data inputs (nI0,nI1) and common data select input (S) to output (nY) propagation delays. FAMILY VI INPUT REQUIREMENTS VM(1) INPUT VM(1) OUTPUT AHC GND to VCC 50% VCC 50% VCC AHCT GND to 3.0 V 1.5 V 50% VCC handbook, halfpage MNA486 tPHL tPLH VM (1) VM (1) nI0, nI1, S INPUT nY OUTPUT GND VI VOH VOL |
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