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74LVC125A Scheda tecnica(PDF) 6 Page - NXP Semiconductors |
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74LVC125A Scheda tecnica(HTML) 6 Page - NXP Semiconductors |
6 / 16 page 74LVC125A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved. Product data sheet Rev. 7 — 11 April 2013 6 of 16 NXP Semiconductors 74LVC125A Quad buffer/line driver with 5 V tolerant input/outputs; 3-state 10. Dynamic characteristics [1] Typical values are measured at Tamb =25 C and VCC = 1.2 V, 1.8 V, 2.5 V, 2.7 V, and 3.3 V respectively. [2] tpd is the same as tPLH and tPHL. ten is the same as tPZL and tPZH. tdis is the same as tPLZ and tPHZ. [3] Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design. [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 Volts N = number of inputs switching (C L VCC 2 f o) = sum of the outputs. Table 7. Dynamic characteristics Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 8. Symbol Parameter Conditions 40 C to +85 C 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 - 12.0 - - - ns VCC = 1.65 V to 1.95 V 1.5 5.4 11.0 1.5 12.8 ns VCC = 2.3 V to 2.7 V 1.0 2.9 5.7 1.0 6.7 ns VCC = 2.7 V 1.5 2.8 5.5 1.5 7.0 ns VCC = 3.0 V to 3.6 V 1.0 2.5 4.8 1.0 6.0 ns ten enable time nOE to nY; see Figure 7 [2] VCC = 1.2 V - 16.0 - - - ns VCC = 1.65 V to 1.95 V 1.0 5.0 12.2 1.0 14.2 ns VCC = 2.3 V to 2.7 V 0.5 2.9 6.8 0.5 7.9 ns VCC = 2.7 V 1.5 3.1 6.6 1.5 8.5 ns VCC = 3.0 V to 3.6 V 1.0 2.3 5.4 1.0 7.0 ns tdis disable time nOE to nY; see Figure 7 [2] VCC = 1.2 V - 7.0 - - - ns VCC = 1.65 V to 1.95 V 2.2 4.6 7.5 2.2 8.7 ns VCC = 2.3 V to 2.7 V 0.5 2.6 4.2 0.5 5.0 ns VCC = 2.7 V 1.5 3.1 5.0 1.5 6.5 ns VCC = 3.0 V to 3.6 V 1.0 3.2 4.6 1.0 6.0 ns tsk(o) output skew time VCC = 3.0 V to 3.6 V [3] - - 1.0 - 1.5 ns CPD power dissipation capacitance per buffer; VI =GND to VCC [4] VCC = 1.65 V to 1.95 V - 6.0 - - - pF VCC = 2.3 V to 2.7 V - 9.4 - - - pF VCC = 3.0 V to 3.6 V - 12.4 - - - pF |
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