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SN74AHC04DGVRE4 Datasheet(PDF) 8 Page - Texas Instruments |
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SN74AHC04DGVRE4 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 13 page www.ti.com PARAMETER MEASUREMENT INFORMATION Input (see Note D) From Output Under Test CL = 50 pF (see Note A) LOAD CIRCUIT S1 VCC × 2 V Open GND 500 Ω 500 Ω Output Control Output Waveform 1 S1 at VCC × 2 V (see Note C) Output Waveform 2 S1 at GND (see Note C) VOL VOH tPZL tPZH tPLZ tPHZ 1.4 V 1.4 V VOH 0 V 1.4 V VOL + 0.3 V 1.4 V VOH − 0.3 V 0 V 2.7 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open VCC × 2 V GND TEST S1 NOTES: A. CL includes probe and jig capacitance. B. Input rise and fall times are 3 ns. C. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control. D. Input rise and fall times are 3 ns. Pulse duration is 150 ns < tw < 10 µs. E. The outputs are measured one at a time, with one transition per measurement. F. tPLZ and tPHZ are the same as tdis. G. tPZL and tPZH are the same as ten. H. tPLH and tPHL are the same as tpd. tPHL tPLH VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES (B to A) 2.7 V VOH VOL 0 V 1.4 V 50% VCC Input (see Note B) Output 1.4 V 50% VCC B-TO-A LOAD (TOTEM POLE) tPHL tPLH From B or Y Output Under Test A-TO-B LOAD OR A-TO-Y LOAD (TOTEM POLE) VOLTAGE WAVEFORMS MEASURED AT TP1 PROPAGATION DELAY TIMES (A to B) 2.7 V VOH VOL 0 V 500 Ω CL = 50 pF (see Note A) TP1 VCC CABLE CL = 50 pF (see Note A) Sink Load Source Load 1.4 V VOH − 1.4 V 500 Ω tPHL tPLH Output 1.4 V VOL + 1.4 V tw When Measuring the Cable Side, VCC CABLE × 2 V SN74LVCZ161284A 19-BIT IEEE STD 1284 TRANSLATION TRANSCEIVER WITH ERROR-FREE POWER UP SCES358B – SEPTEMBER 2001 – REVISED MAY 2005 Figure 3. Load Circuits and Voltage Waveforms 8 |
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