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74HC4024D 데이터시트(PDF) 9 Page - NXP Semiconductors |
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74HC4024D 데이터시트(HTML) 9 Page - NXP Semiconductors |
9 / 18 page 9397 750 13813 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Product data sheet Rev. 03 — 12 November 2004 9 of 18 Philips Semiconductors 74HC4024 7-stage binary ripple counter Tamb = −40 °C to +85 °C tPHL, tPLH propagation delay CP to Q0 see Figure 6 VCC = 2.0 V - - 220 ns VCC = 4.5 V - - 44 ns VCC = 6.0 V - - 37 ns propagation delay Qn to Qn+1 see Figure 6 VCC = 2.0 V - - 100 ns VCC = 4.5 V - - 20 ns VCC = 6.0 V - - 17 ns tPHL propagation delay MR to Q0 see Figure 6 VCC = 2.0 V - - 250 ns VCC = 4.5 V - - 50 ns VCC = 6.0 V - - 43 ns tTHL, tTLH output transition time see Figure 6 VCC = 2.0 V - - 95 ns VCC = 4.5 V - - 19 ns VCC = 6.0 V - - 16 ns tW CP clock pulse width HIGH or LOW see Figure 6 VCC = 2.0 V 100 - - ns VCC = 4.5 V 20 - - ns VCC = 6.0 V 17 - - ns MR master reset pulse width HIGH see Figure 6 VCC = 2.0 V 100 - - ns VCC = 4.5 V 20 - - ns VCC = 6.0 V 17 - - ns trem removal time MR to CP see Figure 6 VCC = 2.0 V 65 - - ns VCC = 4.5 V 13 - - ns VCC = 6.0 V 11 - - ns fmax maximum clock frequency see Figure 6 VCC = 2.0 V 4.8 - - MHz VCC = 4.5 V 24 - - MHz VCC = 6.0 V 28 - - MHz Table 8: Dynamic characteristics …continued GND = 0 V; tr =tf = 6 ns; CL = 50 pF; see Figure 7. Symbol Parameter Conditions Min Typ Max Unit |
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