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74HC390DB 데이터시트(PDF) 5 Page - NXP Semiconductors |
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74HC390DB 데이터시트(HTML) 5 Page - NXP Semiconductors |
5 / 7 page December 1990 5 Philips Semiconductors Product specification Dual decade ripple counter 74HC/HCT390 DC CHARACTERISTICS FOR 74HC For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”. Output capability: standard ICC category: MSI AC CHARACTERISTICS FOR 74HC GND = 0 V; tr =tf = 6 ns; CL =50pF SYMBOL PARAMETER Tamb (°C) UNIT TEST CONDITIONS 74HC VCC (V) WAVEFORMS +25 −40 to +85 −40 to +125 min. typ. max. min. max. min. max. tPHL/ tPLH propagation delay nCP0 to nQ0 47 17 14 145 29 25 180 36 31 220 44 38 ns 2.0 4.5 6.0 Fig.6 tPHL/ tPLH propagation delay nCP1 to nQ1 50 18 14 155 31 26 195 39 33 235 47 40 ns 2.0 4.5 6.0 Fig.6 tPHL/ tPLH propagation delay nCP1 to nQ2 74 27 22 210 42 36 265 53 45 315 63 54 ns 2.0 4.5 6.0 Fig.6 tPHL/ tPLH propagation delay nCP1 to nQ3 50 18 14 155 31 26 195 39 33 235 47 40 ns 2.0 4.5 6.0 Fig.6 tPHL propagation delay nMR to nQn 52 19 15 165 33 28 205 41 35 250 50 43 ns 2.0 4.5 6.0 Fig.7 tTHL/ tTLH output transition time 19 7 6 75 15 13 95 19 16 110 22 19 ns 2.0 4.5 6.0 Fig.6 tW clock pulse width nCP0, nCP1 80 16 14 19 7 6 100 20 17 120 24 20 ns 2.0 4.5 6.0 Fig.6 tW master reset pulse width HIGH 80 17 14 28 10 8 105 21 18 130 26 22 ns 2.0 4.5 6.0 Fig.7 trem removal time nMR to nCPn 75 15 13 22 8 6 95 19 16 110 22 19 ns 2.0 4.5 6.0 Fig.7 fmax maximum clock pulse frequency nCP0, nCP1 6.0 30 35 20 60 71 4.8 24 28 4.0 20 24 MHz 2.0 4.5 6.0 Fig.6 |
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