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74AHC123A Fiches technique(PDF) 11 Page - NXP Semiconductors |
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74AHC123A Fiches technique(HTML) 11 Page - NXP Semiconductors |
11 / 21 page 74AHC_AHCT123A_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 18 January 2008 11 of 21 NXP Semiconductors 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset 74AHCT123A tpd propagation delay nA and nB to nQ and nQ; see Figure 7 [2] VCC = 4.5 V to 5.5 V CL = 15 pF - 5.0 12.0 1.0 14.0 1.0 15.5 ns CL = 50 pF - 7.1 14.0 1.0 16.0 1.0 17.5 ns nRD to nQ and nQ; see Figure 7 [2] VCC = 4.5 V to 5.5 V CL = 15 pF - 5.2 12.9 1.0 15.0 1.0 16.5 ns CL = 50 pF - 7.5 14.9 1.0 17.0 1.0 18.5 ns nRD to nQ and nQ (reset); see Figure 7 [2] VCC = 4.5 V to 5.5 V CL = 15 pF - 4.7 9.4 1.0 11.0 1.0 12.0 ns CL = 50 pF - 6.7 11.4 1.0 13.0 1.0 14.5 ns tW pulse width inputs; nA = LOW; CL = 50 pF; see Figure 7 VCC = 4.5 V to 5.5 V 5.0 - - 5.0 - 5.0 - ns inputs; nB = HIGH; CL = 50 pF; see Figure 7 VCC = 4.5 V to 5.5 V 5.0 - - 5.0 - 5.0 - ns inputs; nRD = LOW; CL = 50 pF; see Figure 7 VCC = 4.5 V to 5.5 V 5.0 - - 5.0 - 5.0 - ns outputs; nQ = LOW and nQ = HIGH; CL = 50 pF; CEXT = 28 pF; REXT =2kΩ; see Figure 7, Figure 8, Figure 9 and Figure 10 [3] VCC = 4.5 V to 5.5 V - 100 200 - 240 - 240 ns CEXT = 0.01 µF; REXT =10kΩ VCC = 4.5 V to 5.5 V 90 100 110 90 110 85 115 µs CEXT = 0.1 µF; REXT =10kΩ VCC = 4.5 V to 5.5 V 0.9 1 1.1 0.9 1.1 0.85 1.15 ms Table 7. Dynamic characteristics …continued GND = 0 V; For test circuit see Figure 12. Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ[1] Max Min Max Min Max |
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