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74ABT16543 Scheda tecnica(PDF) 8 Page - NXP Semiconductors |
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74ABT16543 Scheda tecnica(HTML) 8 Page - NXP Semiconductors |
8 / 12 page Philips Semiconductors Product specification 74ABT16543 74ABTH16543 16-bit latched transceivers with dual enable (3-State) 1998 Feb 27 8 AC WAVEFORMS (Continued) VM = 1.5V, VIN = GND to 3.0V VM nAx, nBx VM VM VM VM VM nLEAB, nLEBA, nEAB, nEBA ts(H) th(H) ts(L) th(L) tw(L) NOTE: The shaded areas indicate when the input is permitted to change for predictable output performance. SH00042 Waveform 3. Data Setup and Hold Times and Latch Enable Pulse Width nOEAB, nOEBA, nEAB, nEBA VM tPZH tPHZ 0V VOH –0.3V VM VM nAx, nBx VOH SH00043 Waveform 4. 3-State Output Enable Time to High Level and Output Disable Time from High Level tPZL tPLZ VOL +0.3V VM VM VM nOEAB, nOEBA, nEAB, nEBA nAx, nBx VOL SH00044 Waveform 5. 3-State Output Enable Time to Low Level and Output Disable Time from Low Level TEST CIRCUIT AND WAVEFORMS PULSE GENERATOR RT VIN D.U.T. VOUT RL VCC RL 7.0V Test Circuit for 3-State Outputs VM VM tW AMP (V) NEGATIVE PULSE 10% 10% 90% 90% 0V VM VM tW AMP (V) POSITIVE PULSE 90% 90% 10% 10% 0V tTHL (tF) tTLH (tR)tTHL (tF) tTLH (tR) VM = 1.5V Input Pulse Definition DEFINITIONS RL = Load resistor; see AC CHARACTERISTICS for value. CL = Load capacitance includes jig and probe capacitance; see AC CHARACTERISTICS for value. RT = Termination resistance should be equal to ZOUT of pulse generators. INPUT PULSE REQUIREMENTS FAMILY Amplitude Rep. Rate tW tR tF 74ABT/H16 3.0V 1MHz 500ns 2.5ns 2.5ns SWITCH POSITION TEST SWITCH tPLZ closed tPZL closed All other open SA00018 CL |
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