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74ABT2240PW Datasheet(PDF) 5 Page - NXP Semiconductors |
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74ABT2240PW Datasheet(HTML) 5 Page - NXP Semiconductors |
5 / 10 page Philips Semiconductors Product specification 74ABT2240 Octal inverting buffer with 30 Ω series termination resistors (3-State) 1998 Jan 16 5 AC CHARACTERISTICS GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω LIMITS SYMBOL PARAMETER WAVEFORM Tamb = +25°C VCC = +5.0V Tamb = –40°C to +85°C VCC = +5.0V ±0.5V UNIT Min Typ Max Min Max tPLH tPHL Propagation delay An to Yn 1 1.0 3.0 2.8 4.3 4.0 5.8 1.0 3.0 4.9 6.0 ns tPZH tPZL Output enable time to High and Low level 2 1.5 4.2 3.4 5.5 4.7 7.6 1.5 4.2 5.8 8.4 ns tPHZ tPLZ Output disable time from High and Low level 2 1.9 2.5 4.1 3.4 5.0 5.8 1.9 2.5 5.6 6.4 ns AC WAVEFORMS VM = 1.5V, VIN = GND to 3.0V INPUT 1.5V OUTPUT tPLH tPHL SA00028 1.5V 1.5V 1.5V 3 V 0 V VOH VOL Waveform 1. Waveforms Showing the Input (An) to Output (Yn) Propagation Delays TEST CIRCUIT AND WAVEFORMS OE INPUT VM VM tPZH tPHZ Yn OUTPUT VOH VM VM Yn OUTPUT VOL tPZL tPLZ 3.5V 0V VOL + 0.3V VOH – 0.3V SA00029 Waveform 2. Waveforms Showing the 3-State Output Enable and Disable Times CL = 50 pF 500 Ω Load Circuit DEFINITIONS CL = Load capacitance includes jig and probe capacitance; see AC CHARACTERISTICS for value. TEST S1 tpd open tPLZ/tPZL 7 V tPHZ/tPZH open SA00012 500 Ω From Output Under Test S1 7 V Open GND |
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