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74LVT245B Datasheet(PDF) 5 Page - NXP Semiconductors |
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74LVT245B Datasheet(HTML) 5 Page - NXP Semiconductors |
5 / 10 page Philips Semiconductors Product specification 74LVT245B 3.3V Octal transceiver with direction pin (3-State) 1999 Mar 19 5 AC CHARACTERISTICS GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C. LIMITS SYMBOL PARAMETER WAVEFORM VCC = 3.3V +0.3V VCC = 2.7V UNIT MIN TYP1 MAX MAX tPLH tPHL Propagation delay An to Bn or Bn to An 1 1.2 1.2 2.4 2.4 3.5 3.5 4.0 4.0 ns tPZH tPZL Output enable time to High and Low level 2 1.3 1.7 3.3 3.2 5.5 5.5 7.1 6.5 ns tPHZ tPLZ Output disable time from High and Low Level 2 2.2 2.2 3.6 3.4 5.9 5.0 6.5 5.1 ns NOTES: 1. All typical values are at VCC = 3.3V and Tamb = 25°C. AC WAVEFORMS VM = 1.5V, VIN = GND to 2.7V An or Bn INPUT VM VM Bn or An OUTPUT VM VM tPHL tPLH SA00192 Waveform 1. Input (An or Bn) to Output (Bn or An) Propagation Delays OE INPUT tPZH tPHZ Bn or An OUTPUT VOH An or Bn OUTPUT VOL tPZL tPLZ 3.0V 0V VOL + 0.3V VOH – 0.3V 2.7V 1.5V 1.5V 1.5V 1.5V 0V SV00106 Waveform 2. 3-State Output Enable and Disable Times |
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