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TC74VHC161FT 데이터시트(PDF) 8 Page - Toshiba Semiconductor |
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TC74VHC161FT 데이터시트(HTML) 8 Page - Toshiba Semiconductor |
8 / 15 page TC74VHC161,163F/FN/FT/FK 2007-10-01 8 AC Characteristics (input: tr = tf = 3 ns) Test Condition Ta = 25°C Ta = −40 to 85°C Characteristics Symbol VCC (V) CL (pF) Min Typ. Max Min Max Unit 15 ― 8.3 12.8 1.0 15.0 3.3 ± 0.3 50 ― 10.8 16.3 1.0 18.5 15 ― 4.9 8.1 1.0 9.5 Propagation delay time (CK-Q) tpLH tpHL Figure 1, Figure 2 5.0 ± 0.5 50 ― 6.4 10.1 1.0 11.5 ns 15 ― 8.7 13.6 1.0 16.0 3.3 ± 0.3 50 ― 11.2 17.1 1.0 19.5 15 ― 4.9 8.1 1.0 9.5 Propagation delay time (CK-CARRY, count-mode) tpLH tpHL Figure 1 5.0 ± 0.5 50 ― 6.4 10.1 1.0 11.5 ns 15 ― 11.0 17.2 1.0 20.0 3.3 ± 0.3 50 ― 13.5 20.7 1.0 23.5 15 ― 6.2 10.3 1.0 12.0 Propagation delay time (CK-CARRY, preset-mode) tpLH tpHL Figure 2 5.0 ± 0.5 50 ― 7.7 12.3 1.0 14.0 ns 15 ― 7.5 12.3 1.0 14.5 3.3 ± 0.3 50 ― 10.5 15.8 1.0 18.0 15 ― 4.9 8.1 1.0 9.5 Propagation delay time (ENT-CARRY) tpLH tpHL Figure 6 5.0 ± 0.5 50 ― 6.4 10.1 1.0 11.5 ns 15 ― 8.9 13.6 1.0 16.0 3.3 ± 0.3 50 ― 11.2 17.1 1.0 19.5 15 ― 5.5 9.0 1.0 10.5 Propagation delay time ( CLR -Q) (Note 2) tpHL Figure 4 5.0 ± 0.5 50 ― 7.0 11.0 1.0 12.5 ns 15 ― 8.4 13.2 1.0 15.5 3.3 ± 0.3 50 ― 10.9 16.7 1.0 19.0 15 ― 5.0 8.6 1.0 10.0 Propagation delay time ( CLR -CARRY) (Note 2) tpHL Figure 4 5.0 ± 0.5 50 ― 6.5 10.6 1.0 12.0 ns 15 80 130 ― 70 ― 3.3 ± 0.3 50 55 85 ― 50 ― 15 135 185 ― 115 ― Maximum clock frequency fmax ― 5.0 ± 0.5 50 95 125 ― 85 ― MHz Input capacitance CIN ― ― 4 10 ― 10 pF Power dissipation capacitance CPD (Note 1) ― 23 ― ― ― pF Note 1: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (opr) = CPD・VCC・fIN + ICC When the outputs drive a capacitive load, total current consumption is the sum of CPD, and ΔICC which is obtained from the following formula: ⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ + + + + ⋅ 16 C 16 C 8 C 4 C 2 C V f = ΔI CO QD QC QB QA CC CK CC CQA to CQD and CCO are the capacitances at QA to QD and CARRY OUT, respectively. fCK is the input frequency of the CK. Note 2: For TC74VHC161 only |
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