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74HC4514D 데이터시트(PDF) 7 Page - NXP Semiconductors |
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7 / 9 page September 1993 7 Philips Semiconductors Product specification 4-to-16 line decoder/demultiplexer with input latches 74HC/HCT4514 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 An LE E 0.65 1.40 1.00 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 Qn 30 55 69 83 ns 4.5 Fig.6 tPHL/ tPLH propagation delay LE to Qn 29 50 63 75 ns 4.5 Fig.6 tPHL/ tPLH propagation delay E to Qn 17 40 50 60 ns 4.5 Fig.6 tTHL/ tTLH output transition time 7 15 19 22 ns 4.5 Fig.6 tW latch enable pulse width HIGH 16 4 20 24 ns 4.5 Fig.7 tsu set-up time An to LE 18 9 23 27 ns 4.5 Fig.7 th hold time An to LE 3 −3 3 3 ns 4.5 Fig.7 |
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