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74HC_HCT4538 Folha de dados(PDF) 10 Page - NXP Semiconductors |
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74HC_HCT4538 Folha de dados(HTML) 10 Page - NXP Semiconductors |
10 / 24 page 74HC_HCT4538_3 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 03 — 8 June 2009 10 of 24 NXP Semiconductors 74HC4538; 74HCT4538 Dual retriggerable precision monostable multivibrator tW pulse width nA LOW; see Figure 8 VCC = 2.0 V 80 17 - 100 - 120 - ns VCC = 4.5 V 16 6 - 20 - 24 - ns VCC = 6.0 V 14 5 - 17 - 20 - ns nB HIGH; see Figure 8 VCC = 2.0 V 80 17 - 100 - 120 - ns VCC = 4.5 V 16 6 - 20 - 24 - ns VCC = 6.0 V 14 5 - 17 - 20 - ns nCD LOW; see Figure 8 VCC = 2.0 V 80 19 - 100 - 120 - ns VCC = 4.5 V 16 7 - 20 - 24 - ns VCC = 6.0 V 14 6 - 17 - 20 - ns nQ and nQ HIGH or LOW; see Figure 8 VCC = 5.0 V; CEXT = 0.1 µF; REXT = 10 kΩ 630 700 770 602 798 595 805 µs trec recovery time nCD to nA, nB; see Figure 8 VCC = 2.0 V 35 6 - 45 - 55 - ns VCC = 4.5 V 7 2 - 9 - 11 - ns VCC = 6.0 V 6 2 - 8 - 9 - ns trtrig retrigger time nA, nB; see Figure 8; X=CEXT / (4.5 × VCC) VCC = 2.0 V - 455 + X ----- ns VCC = 4.5 V - 80 + X ----- ns VCC = 6.0 V - 55 + X ----- ns REXT external timing resistor VCC = 2.0 V 10 - 1000 ---- k Ω VCC = 5.0 V 2 - 1000 ---- k Ω CEXT external timing capacitor no limits CPD power dissipation capacitance per multivibrator; VI = GND to VCC [3] - 136 ----- pF Table 7. Dynamic characteristics …continued Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 9. Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ[1] Max Min Max Min Max |
Nº de peça semelhante - 74HC_HCT4538_15 |
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Descrição semelhante - 74HC_HCT4538_15 |
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