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74HC273D-653 데이터시트(PDF) 8 Page - NXP Semiconductors |
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74HC273D-653 데이터시트(HTML) 8 Page - NXP Semiconductors |
8 / 21 page 74HC_HCT273 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved. Product data sheet Rev. 4 — 10 June 2013 8 of 21 NXP Semiconductors 74HC273; 74HCT273 Octal D-type flip-flop with reset; positive-edge trigger tPHL HIGH to LOW propagation delay MR to Qn; see Figure 8 VCC = 2.0 V - 44 150 - 185 - 225 ns VCC = 4.5 V - 16 30 - 37 - 45 ns VCC = 5.0 V; CL =15pF - 15 - - - - - ns VCC = 6.0 V - 14 26 - 31 - 38 ns tt transition time Qn output; see Figure 7 [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 - 15 - 19 ns tW pulse width CP input HIGH or LOW; see Figure 7 VCC = 2.0 V 80 14 - 100 - 120 - ns VCC = 4.5 V 16 5 - 20 - 24 - ns VCC = 6.0 V 14 4 - 17 - 20 - ns MR input LOW; see Figure 8 VCC = 2.0 V 60 17 - 75 - 90 - ns VCC = 4.5 V 12 6 - 15 - 18 - ns VCC = 6.0 V 10 5 - 13 - 15 - ns trec recovery time MR to CP; see Figure 8 VCC = 2.0 V 50 6 - 65 - 75 - ns VCC = 4.5 V 10 2 - 13 - 15 - ns VCC = 6.0 V 9 2- 11 - 13 - ns tsu set-up time Dn to CP; see Figure 9 VCC = 2.0 V 60 11 - 75 - 90 - ns VCC = 4.5 V 12 4 - 15 - 18 - ns VCC = 6.0 V 10 3 - 13 - 15 - ns th hold time Dn to CP; see Figure 9 VCC = 2.0 V 3 6- 3 - 3 - ns VCC = 4.5 V 3 2- 3 - 3 - ns VCC = 6.0 V 3 2- 3 - 3 - ns fmax maximum frequency CP input; see Figure 7 VCC = 2.0 V 6 20.6 - 4.8 - 4 - MHz VCC = 4.5 V 30 103 - 24 - 20 - MHz VCC = 5.0 V; CL =15pF - 66 - - - - - MHz VCC = 6.0 V 35 122 - 28 - 24 - MHz CPD power dissipation capacitance per package; VI =GND to VCC [3] -20- - - - - pF Table 7. Dynamic characteristics …continued GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit, see Figure 10 Symbol Parameter Conditions 25 C 40 C to +85 C 40 C to +125 C Unit Min Typ Max Min Max Min Max |
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