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74LV123N Arkusz danych(PDF) 11 Page - NXP Semiconductors |
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74LV123N Arkusz danych(HTML) 11 Page - NXP Semiconductors |
11 / 23 page 74LV123_5 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 05 — 8 November 2007 11 of 23 NXP Semiconductors 74LV123 Dual retriggerable monostable multivibrator with reset [1] All typical values are measured at Tamb = 25 °C and nominal supply values (VCC = 3.3 V and 5.0 V). [2] tpd is the same as tPLH and tPHL; CEXT = 0 pF; REXT =5 kΩ. [3] For other REXT and CEXT combinations see Figure 11 and Section 12.1.1 “Basic timing”. [4] CEXT has no limits. [5] 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 V; N = number of inputs switching; Σ(CL × VCC2 × fo) = sum of the outputs. Outputs; nQ = LOW and nQ = HIGH, see Figure 7 tW pulse width CEXT = 100 nF; REXT = 10 kΩ VCC = 2.0 V - 470 - - - ns VCC = 2.7 V - 460 - - - ns VCC = 3.0 V to 3.6 V - 450 - - - ns VCC = 4.5 V to 5.5 V - 430 - - - ns CEXT = 0 pF; REXT = 5 kΩ VCC = 2.0 V - 100 - - - ns VCC = 2.7 V - 90 - - - ns VCC = 3.0 V to 3.6 V - 80 - - - ns VCC = 4.5 V to 5.5 V - 70 - - - ns External components REXT external resistance see Figure 11 [3] VCC = 1.2 V 10 - 1000 - - k Ω VCC = 2.0 V 5 - 1000 - - k Ω VCC = 2.7 V 3 - 1000 - - k Ω VCC = 3.0 V to 3.6 V 2 - 1000 - - k Ω VCC = 4.5 V to 5.5 V 2 - 1000 - - k Ω CEXT external capacitance see Figure 11 [3][4] VCC = 1.2 V - - - - - pF VCC = 2.0 V - - - - - pF VCC = 2.7 V - - - - - pF VCC = 3.0 V to 3.6 V - - - - - pF VCC = 4.5 V to 5.5 V - - - - - pF Dynamic power dissipation CPD power dissipation capacitance VCC = 3.3 V; VI = GND to VCC [5] -60- - - pF Table 7. Dynamic characteristics …continued GND = 0 V; tr =tf ≤ 2.5 ns; 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 |
Podobny numer części - 74LV123N |
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Podobny opis - 74LV123N |
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