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74LVC1284DB Arkusz danych(PDF) 5 Page - NXP Semiconductors |
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74LVC1284DB Arkusz danych(HTML) 5 Page - NXP Semiconductors |
5 / 10 page Philips Semiconductors Product specification 74LVC1284 3.3V Parallel printer interface transceiver/buffer 1995 Nov 10 5 AC WAVEFORMS VM = 1.5V VX = VOL "0.3V VY = VOH –0.3V VOL and VOH are the typical output voltage drops that occur with the output load. (VCC never goes below 3.0V). VM tPLH tPHL VOH VOL SY00001 VM INPUTS GND OUTPUTS V = 2.7V Waveform 1. Input Bn to output An propagation delays VCC OUTPUT LOW-to-OFF OFF-to-LOW VOL VOH OUTPUT HIGH-to-OFF OFF-to-HIGH GND tPZH VM VM VM VM VM tPZL tPHZ tPLZ outputs enabled outputs disabled outputs enabled DIR to A DIR to B HD to B VX VY SY00002 Waveform 2. 3-State enable and disable times tPLH tPHL SY00008 INPUT OUTPUT 2.4V 1.4V 0.4V VOUT VOUT –1.4V 1.4V 1.4V Waveform 3. Voltage Waveforms Propagation Delay Times (A To B) Measured at Output Pin 0.4V 2.4V 0.9V 0.4V t1 t2 t1 t2 2.4V 1.9V INPUT OUTPUT SY00007 Waveform 4. Slew Rate Waveforms Voltage Waveforms (Input pulse rise and fall time are 3ns, 150ns t pulse width t10 µs, for both a Low to High and a High to Low transition.) Slew Rate measured between 0.4V and 0.9V - rising. Slew Rate measured between 2.4V and 1.9V - falling. Slew Rate measured at TP1. |
Podobny numer części - 74LVC1284DB |
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Podobny opis - 74LVC1284DB |
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