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74AHCT2G Datasheet(PDF) 10 Page - NXP Semiconductors |
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74AHCT2G Datasheet(HTML) 10 Page - NXP Semiconductors |
10 / 16 page 9397 750 12532 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Product data sheet Rev. 01 — 23 February 2004 10 of 16 Philips Semiconductors 74AHC2G32; 74AHCT2G32 Dual 2-input OR gate [1] Typical values are measured at VCC = 5.0 V. [2] CPD is used to determine the dynamic power dissipation (PD in µW). PD =CPD × VCC2 × fi × N+ Σ(CL × VCC2 × fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in Volts; N = total load switching outputs; Σ(C L × VCC 2 × f o) = sum of the outputs. [3] The condition is VI = GND to VCC. 13. Waveforms Table 11: Dynamic characteristics type 74AHCT2G32 At recommended operating conditions; voltages are referenced to GND (ground = 0 V); tr = tf ≤ 3.0 ns; see Figure 6. Symbol Parameter Conditions Min Typ Max Unit Tamb = 25 °C tPHL, tPLH propagation delay nA and nB to nY see Figure 5 VCC = 4.5 V to 5.5 V; CL =15pF [1] - 3.3 6.9 ns VCC = 4.5 V to 5.5 V; CL =50pF [1] - 4.8 7.9 ns CPD power dissipation capacitance CL = 50 pF; fi = 1 MHz [2] [3] -17 - pF Tamb = −40 °C to +85 °C tPHL, tPLH propagation delay nA and nB to nY see Figure 5 VCC = 4.5 V to 5.5 V; CL = 15 pF 1.0 - 8.0 ns VCC = 4.5 V to 5.5 V; CL = 50 pF 1.0 - 9.0 ns Tamb = −40 °C to +125 °C tPHL, tPLH propagation delay nA and nB to nY see Figure 5 VCC = 4.5 V to 5.5 V; CL = 15 pF 1.0 - 9.0 ns VCC = 4.5 V to 5.5 V; CL = 50 pF 1.0 - 10.0 ns 74AHC2G32: VM = 0.5 x VCC; VI = GND to VCC. 74AHCT2G32: input VM = 1.5 V and output VM = 0.5 x VCC; VI = GND to 3.0 V. Fig 5. The input (nA and nB) to output (nY) propagation delays. mna224 nA, nB input nY output tPLH tPHL GND VI VM VM VOH VOL |
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