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74ABT540PWDH Fiches technique(PDF) 5 Page - NXP Semiconductors |
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74ABT540PWDH Fiches technique(HTML) 5 Page - NXP Semiconductors |
5 / 10 page Philips Semiconductors Product specification 74ABT540 Octal buffer, inverting (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 1.0 2.9 3.1 4.1 4.3 1.0 1.0 4.8 4.8 ns tPZH tPZL Output enable time to High and Low level 2 1.1 1.1 4.1 4.6 4.9 5.8 1.1 1.1 5.9 6.4 ns tPHZ tPLZ Output disable time from High and Low level 2 1.5 1.2 3.6 2.9 6.8 5.7 1.5 1.2 7.3 6.2 ns AC WAVEFORMS VM = 1.5V, VIN = GND to 3.0V An INPUT VM VM Yn OUTPUT VM VM tPHL tPLH SA00200 Waveform 1. Waveforms Showing the Input (An) to Output (Yn) Propagation Delays OEn INPUT VM VM tPZH tPHZ Yn OUTPUT VOH VM VM Yn OUTPUT VOL tPZL tPLZ 3.5V 0V VOL + 0.3V VOH – 0.3V SA00201 Waveform 2. Waveforms Showing the 3-State Output Enable and Disable Times TEST CIRCUIT AND WAVEFORMS 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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