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74HC590BQ Fiches technique(PDF) 9 Page - NXP Semiconductors |
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74HC590BQ Fiches technique(HTML) 9 Page - NXP Semiconductors |
9 / 21 page 74HC590_2 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 02 — 28 April 2009 9 of 21 NXP Semiconductors 74HC590 8-bit binary counter with output register; 3-state 10. Dynamic characteristics Table 7. Dynamic characteristics GND (ground = 0 V); for test circuit see Figure 15. Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ Max Min Max Min Max tpd propagation delay CPC to RCO; see Figure 9 [1] VCC = 2.0 V - 52 150 - 190 - 230 ns VCC = 4.5 V - 19 30 - 38 - 45 ns VCC = 6.0 V - 15 26 - 33 - 40 ns CPR to Qn; see Figure 10 VCC = 2.0 V - 50 140 - 175 - 210 ns VCC = 4.5 V - 17 28 - 35 - 42 ns VCC = 6.0 V - 14 24 - 30 - 36 ns tPLH LOW to HIGH propagation delay MRC to RCO; see Figure 11 VCC = 2.0 V - 53 130 - 165 - 200 ns VCC = 4.5 V - 18 26 - 33 - 40 ns VCC = 6.0 V - 14 22 - 28 - 34 ns ten enable time OE to Qn; see Figure 12 [2] VCC = 2.0 V - 28 105 - 130 - 160 ns VCC = 4.5 V - 13 21 - 26 - 32 ns VCC = 6.0 V - 11 18 - 22 - 27 ns tdis disable time OE to Qn; see Figure 12 [3] VCC = 2.0 V - 28 105 - 130 - 160 ns VCC = 4.5 V - 13 21 - 26 - 32 ns VCC = 6.0 V - 11 18 - 22 - 27 ns tW pulse width CPC and CPR; HIGH or LOW; see Figure 9 and Figure 10 VCC = 2.0 V 100 24 - 125 - 145 - ns VCC = 4.5 V 20 9 - 25 - 29 - ns VCC = 6.0 V 17 8 - 21 - 25 - ns MRC; LOW; see Figure 11 VCC = 2.0 V 75 28 - 95 - 110 - ns VCC = 4.5 V 15 8 - 19 - 22 - ns VCC = 6.0 V 13 6 - 16 - 19 - ns tsu set-up time CPC to CPR; see Figure 14 VCC = 2.0 V 100 46 - 125 - 150 - ns VCC = 4.5 V 20 14 - 25 - 30 - ns VCC = 6.0 V 17 10 - 21 - 26 - ns CE to CPC; see Figure 13 VCC = 2.0 V 100 44 - 125 - 150 - ns VCC = 4.5 V 20 11 - 25 - 30 - ns VCC = 6.0 V 17 9 - 21 - 26 - ns |
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