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74HC4020DB 数据表(PDF) 5 Page - NXP Semiconductors |
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74HC4020DB 数据表(HTML) 5 Page - NXP Semiconductors |
5 / 7 page September 1993 5 Philips Semiconductors Product specification 14-stage binary ripple counter 74HC/HCT4020 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 = 50 pF 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 CP to Q0 39 14 11 140 28 24 175 35 30 210 42 36 ns 2.0 4.5 6.0 Fig.7 tPHL/ tPLH propagation delay Qn to Qn+1 22 8 6 75 15 13 95 19 16 110 22 19 ns 2.0 4.5 6.0 Fig.7 tPHL propagation delay MR to Qn 55 20 16 170 34 29 215 43 37 225 51 43 ns 2.0 4.5 6.0 Fig.8 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.7 tW clock pulse width HIGH or LOW 80 16 14 11 4 3 100 20 17 120 24 20 ns 2.0 4.5 6.0 Fig.7 tW master reset pulse width HIGH 80 16 14 17 6 5 100 20 17 120 24 20 ns 2.0 4.5 6.0 Fig.8 trem removal time MR to CP 50 10 9 6 2 2 65 13 11 75 15 13 ns 2.0 4.5 6.0 Fig.8 fmax maximum clock pulse frequency 6.0 30 35 30 92 109 4.8 24 28 4.0 20 24 MHz 2.0 4.5 6.0 Fig.7 |
类似零件编号 - 74HC4020DB |
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类似说明 - 74HC4020DB |
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