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74LV14 数据表(PDF) 6 Page - NXP Semiconductors |
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74LV14 数据表(HTML) 6 Page - NXP Semiconductors |
6 / 19 page 74LV14 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. Product data sheet Rev. 6 — 12 December 2011 6 of 19 NXP Semiconductors 74LV14 Hex inverting Schmitt trigger 11. Dynamic characteristics [1] All typical values are measured at Tamb =25 C. [2] tpd is the same as tPLH and tPHL. [3] Typical values are measured at nominal supply voltage (VCC = 3.3 V). [4] CPD is used to determine the dynamic power dissipation (PD in W). PD =CPD VCC2 fi N+ (CL VCC2 fo) where: fi = input frequency in MHz, fo = output frequency in MHz CL = output load capacitance in pF VCC = supply voltage in V N = number of inputs switching (C L VCC 2 f o) = sum of the outputs. 12. Waveforms Table 7. Dynamic characteristics GND = 0 V; For test circuit see Figure 7. Symbol Parameter Conditions Tamb = 40 C to +85 C Tamb = 40 C to +125 C Unit Min Typ[1] Max Min Max tpd propagation delay nA to nY; see Figure 6 [2] VCC = 1.2 V - 80 - - - ns VCC = 2.0 V - 27 37 - 48 ns VCC = 2.7 V - 20 28 - 35 ns VCC = 3.0 V to 3.6 V; CL =15pF [3] -13 - - - ns VCC = 3.0 V to 3.6 V [3] - 15 22 - 28 ns VCC = 4.5 V to 5.5 V - - 18 - 23 ns CPD power dissipation capacitance CL =50pF; fi = 1 MHz; VI =GND to VCC [4] -15 - - - pF Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 6. The input (nA) to output (nY) propagation delays mna344 tPHL tPLH VM VM VM VM nA input nY output GND VI VOH VOL |
类似零件编号 - 74LV14_15 |
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类似说明 - 74LV14_15 |
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