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74ALVCH16245 bảng dữ liệu(PDF) 6 Page - NXP Semiconductors |
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6 / 10 page Philips Semiconductors Product specification 74ALVC16245/ 74ALVCH16245 16-bit bus transceiver with direction pin (3-State) 1998 Jun 29 6 AC CHARACTERISTICS FOR VCC = 3.0V TO 3.6V RANGE AND VCC = 2.7V GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF LIMITS SYMBOL PARAMETER WAVEFORM VCC = 3.3 ± 0.3V VCC = 2.7V UNIT MIN TYP1, 2 MAX MIN TYP1 MAX tPHL/tPLH Propagation delay nAn to nBn; nBn to nAn 1, 3 1.0 1.9 3.0 1.0 2.1 3.6 ns tPZH/tPZL 3-State output enable time nOE to nAn; nOE to nBn 2, 3 1.0 2.3 4.4 1.0 3.0 5.4 ns tPHZ/tPLZ 3-State output disable time nOE to nAn; nOE to nBn 2, 3 1.0 2.8 4.1 1.0 3.1 4.6 ns NOTES: 1. All typical values are measured at Tamb = 25°C. 2. Typical value is measured at VCC = 3.3V AC WAVEFORMS FOR VCC = 2.3V TO 2.7V AND VCC < 2.3V RANGE VM = 0.5 VCC VX = VOL + 0.15V VY = VOH –0.15V VOL and VOH are the typical output voltage drop that occur with the output load. V I = VCC AC WAVEFORMS FOR VCC = 3.0V TO 3.6V AND VCC = 2.7V RANGE VM = 1.5 V VX = VOL + 0.3V VY = VOH –0.3V VOL and VOH are the typical output voltage drop that occur with the output load. V I = 2.7V SW00063 An, Bn INPUT VM tPHL tPLH VOL VI VM GND VOH Bn, An OUTPUT Waveform 1. Input (nAn, nBn) to output (nBn, nAn) propagation delay times tPLZ tPZL VI OE INPUT GND VCC OUTPUT LOW-to-OFF OFF-to-LOW VOL VOH OUTPUT HIGH-to-OFF OFF-to-HIGH GND outputs enabled outputs enabled outputs disabled tPHZ VM VM VM tPZH VX VY SW00064 Waveform 2. 3-State enable and disable times |
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