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74HC237 データシート(PDF) 7 Page - NXP Semiconductors |
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74HC237 データシート(HTML) 7 Page - NXP Semiconductors |
7 / 9 page December 1990 7 Philips Semiconductors Product specification 3-to-8 line decoder/demultiplexer with address latches 74HC/HCT237 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 1.50 E1 1.50 E2 1.50 LE 1.50 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 22 38 48 57 ns 4.5 Fig.6 tPHL/ tPLH propagation delay LE to Yn 25 42 53 63 ns 4.5 Fig.7 tPHL/ tPLH propagation delay E1 to Yn 20 35 44 53 ns 4.5 Fig.7 tPHL/ tPLH propagation delay E2 to Yn 20 33 41 50 ns 4.5 Fig.6 tTHL/ tTLH output transition time 7 15 19 22 ns 4.5 Fig.6 tW LE pulse width HIGH 10 5 13 15 ns 4.5 Fig.8 tsu set-up time An to LE 10 2 13 15 ns 4.5 Fig.8 th hold time An to LE 5 0 5 5 ns 4.5 Fig.8 |
同様の部品番号 - 74HC237 |
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同様の説明 - 74HC237 |
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