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74LVC74ADB Datasheet(PDF) 6 Page - NXP Semiconductors |
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74LVC74ADB Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 16 page 74LVC74A_6 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 06 — 4 June 2007 6 of 16 NXP Semiconductors 74LVC74A Dual D-type flip-flop with set and reset; positive-edge trigger 10. Dynamic characteristics [1] Typical values are measured at Tamb =25 °C. For VCC = 3.0 V to 3.6 V range, typical values are measured at 3.3 V. [2] tpd is the same as tPLH and tPHL. [3] Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design. Table 8. Dynamic characteristics Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 9. Symbol Parameter Conditions −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ[1] Max Min Max tpd propagation delay nCP to nQ, nQ; see Figure 7 [2] VCC = 1.2 V - 15 - - - ns VCC = 2.7 V 1.0 2.7 6.0 1.0 7.5 ns VCC = 3.0 V to 3.6 V 1.0 2.5 5.2 1.0 6.5 ns nSD to nQ, nQ; see Figure 8 VCC = 1.2 V - 15 - - - ns VCC = 2.7 V 1.0 3.2 6.4 1.0 8.0 ns VCC = 3.0 V to 3.6 V 1.0 2.5 5.4 1.0 7.0 ns nRD to nQ, nQ; see Figure 8 VCC = 1.2 V - 15 - - - ns VCC = 2.7 V 1.0 3.2 6.4 1.0 8.0 ns VCC = 3.0 V to 3.6 V 1.0 2.5 5.4 1.0 7.0 ns tW pulse width clock HIGH or LOW; see Figure 7 VCC = 2.7 V 3.3 - - 4.5 - ns VCC = 3.0 V to 3.6 V 3.3 1.3 - 4.5 - ns set or reset LOW; see Figure 8 VCC = 2.7 V 3.3 - - 4.5 - ns VCC = 3.0 V to 3.6 V 3.3 1.7 - 4.5 - ns trec recovery time set or reset; see Figure 8 VCC = 2.7 V 1.5 - - 1.0 - ns VCC = 3.0 V to 3.6 V +1.0 −3.0 - 1.0 - ns tsu set-up time nD to nCP; see Figure 7 VCC = 2.7 V 2.2 - - 2.2 - ns VCC = 3.0 V to 3.6 V 2.0 0.8 - 2.0 - ns th hold time nD to nCP; see Figure 7 VCC = 2.7 V 1.0 - - 1.0 - ns VCC = 3.0 V to 3.6 V +1.0 −0.2 - 1.0 - ns fmax maximum frequency nCP; see Figure 7 VCC = 2.7 V 83 - - 66 - MHz VCC = 3.0 V to 3.6 V 150 250 120 - MHz tsk(o) output skew time VCC = 3.0 V to 3.6 V [3] - - 1.0 - 1.5 ns CPD power dissipation capacitance per flip-flop; VI = GND to VCC [4] VCC = 3.3 V - 15 - - - pF |
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