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74HCT161DB Arkusz danych(PDF) 9 Page - NXP Semiconductors |
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74HCT161DB Arkusz danych(HTML) 9 Page - NXP Semiconductors |
9 / 12 page December 1990 9 Philips Semiconductors Product specification Presettable synchronous 4-bit binary counter; asynchronous reset 74HC/HCT161 DC CHARACTERISTICS FOR 74HCT For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”. Output capability: standard ICC category: MSI Note to HCT types The value of additional quiescent supply current ( ∆ICC) for a unit load of 1 is given in the family specifications. To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below. AC CHARACTERISTICS FOR 74HCT GND = 0 V; tr =tf = 6 ns; CL = 50 pF INPUT UNIT LOAD COEFFICIENT MR 0.95 CP 1.10 CEP 0.25 Dn 0.25 CET 0.75 PE 0.30 SYMBOL PARAMETER Tamb (°C) UNIT TEST CONDITIONS 74HCT VCC (V) WAVEFORMS +25 −40 to +85 −40 to +125 min. typ. max. min. max. min. max. tPHL/ tPLH propagation delay CP to Qn 23 43 54 65 ns 4.5 Fig.8 tPHL/ tPLH propagation delay CP to TC 28 48 60 72 ns 4.5 Fig.8 tPHL propagation delay MR to Qn 29 46 58 69 ns 4.5 Fig.9 tPHL propagation delay MR to TC 30 51 64 77 ns 4.5 Fig.9 tPHL/ tPLH propagation delay CET to TC 17 35 44 53 ns 4.5 Fig.10 tTHL/ tTLH output transition time 7 15 19 22 ns 4.5 Figs 8 and 10 tW clock pulse width HIGH or LOW 16 7 20 24 ns 4.5 Fig.8 tW master reset pulse width; LOW 20 10 25 30 ns 4.5 Fig.9 trem removal time MR to CP 20 6 25 30 ns 4.5 Fig.9 |
Podobny numer części - 74HCT161DB |
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Podobny opis - 74HCT161DB |
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