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74LVC1G19GV Scheda tecnica(PDF) 7 Page - NXP Semiconductors |
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74LVC1G19GV Scheda tecnica(HTML) 7 Page - NXP Semiconductors |
7 / 18 page 74LVC1G19 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. Product data sheet Rev. 6 — 6 December 2011 7 of 18 NXP Semiconductors 74LVC1G19 1-of-2 decoder/demultiplexer 11. Dynamic characteristics [1] Typical values are measured at Tamb =25 C and VCC = 1.8 V, 2.5 V, 2.7 V, 3.3 V and 5.0 V respectively. [2] tpd is the same as tPLH and tPHL. [3] 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 outputs. 12. AC waveforms Table 8. Dynamic characteristics Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 6. Symbol Parameter Conditions 40 C to +85 C 40 C to +125 C Unit Min Typ[1] Max Min Max tpd propagation delay A, E to nY; see Figure 5 [2] VCC = 1.65 V to 1.95 V 1.0 4.0 10.5 1.0 13.1 ns VCC = 2.3 V to 2.7 V 0.5 2.5 6.2 0.5 7.7 ns VCC = 2.7 V 1.0 2.8 6.5 1.0 8.1 ns VCC = 3.0 V to 3.6 V 0.5 2.5 5.2 0.5 6.0 ns VCC = 4.5 V to 5.5 V 0.5 1.8 3.9 0.5 5.0 ns CPD power dissipation capacitance VI = GND to VCC; VCC = 3.3 V [3] - 18.9 - - - pF Measurement points are given in Table 9. VOL and VOH are typical output voltage levels that occur with the output load. Fig 5. The input A, E to output nY propagation delays mnb127 A, E input nY output tPHL tPLH GND VI VM VM VM VM VOH VOL |
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