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74HCT393N Datasheet(PDF) 8 Page - NXP Semiconductors |
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74HCT393N Datasheet(HTML) 8 Page - NXP Semiconductors |
8 / 21 page 74HC_HCT393 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved. Product data sheet Rev. 4 — 16 May 2013 8 of 21 NXP Semiconductors 74HC393; 74HCT393 Dual 4-bit binary ripple counter 10. Dynamic characteristics Table 7. Dynamic characteristics Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Figure 11. Symbol Parameter Conditions 25 C 40 C to +85 C 40 C to +125 C Unit Min Typ Max Min Max Min Max 74HC393 tpd propagation delay nCP to nQ0; see Figure 9 [1] VCC = 2.0 V - 41 125 - 155 - 190 ns VCC = 4.5 V - 15 25 - 31 - 38 ns VCC = 5 V; CL = 15 pF - 12 - - - - - ns VCC = 6.0 V - 12 21 - 26 - 32 ns nQx to nQ(x 1); see Figure 9 [1] VCC = 2.0 V - 14 45 - 55 - 70 ns VCC = 4.5 V - 5 9 - 11 - 14 ns VCC = 5 V; CL = 15 pF - 5 - - - - - ns VCC = 6.0 V - 4 8 - 9 - 12 ns tPHL HIGH to LOW propagation delay nMR to nQx; see Figure 10 VCC = 2.0 V - 39 140 - 175 - 210 ns VCC = 4.5 V - 14 28 - 35 - 42 ns VCC = 5 V; CL = 15 pF - 11 - - - - - ns VCC = 6.0 V - 11 24 - 30 - 36 ns tt transition time Qn; see Figure 9 [2] VCC = 2.0 V - 19 75 - 95 - 110 ns VCC = 4.5 V - 7 15 - 19 - 22 ns VCC = 6.0 V - 6 13 - 16 - 19 ns tW pulse width nCP HIGH or LOW; see Figure 9 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 nMR HIGH; see Figure 10 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 trec recovery time nMR to nCP; see Figure 10 VCC = 2.0 V 5 3 - 5 - 5 - ns VCC = 4.5 V 5 1 - 5 - 5 - ns VCC = 6.0 V 5 1 - 5 - 5 - ns |
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