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74HCU147N Fiches technique(PDF) 7 Page - NXP Semiconductors |
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74HCU147N Fiches technique(HTML) 7 Page - NXP Semiconductors |
7 / 7 page December 1990 7 Philips Semiconductors Product specification 10-to-4 line priority encoder 74HC/HCT147 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 AC WAVEFORMS PACKAGE OUTLINES See “74HC/HCT/HCU/HCMOS Logic Package Outlines”. INPUT UNIT LOAD COEFFICIENT A3, A4, A7, A8 1.50 A5, A6, A0, A1, A2 1.10 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 An to Yn 20 35 44 53 ns 4.5 Fig.6 tTHL/ tTLH output transition time 7 15 19 22 ns 4.5 Fig.6 Fig.6 Waveforms showing the decimal data inputs (An) to output (Yn) propagation delays and the output transition times. (1) HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V. |
Numéro de pièce similaire - 74HCU147N |
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Description similaire - 74HCU147N |
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