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74HCT9114 Scheda tecnica(PDF) 6 Page - NXP Semiconductors |
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74HCT9114 Scheda tecnica(HTML) 6 Page - NXP Semiconductors |
6 / 7 page December 1990 6 Philips Semiconductors Product specification Nine wide Schmitt trigger buffer; open drain outputs; inverting 74HC/HCT9114 DC CHARACTERISTICS FOR 74HCT For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”. Transfer characteristics are given below. 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. TRANSFER CHARACTERISTICS FOR 74HCT Voltages are referred to GND (ground = 0 V) AC CHARACTERISTICS FOR 74HCT GND = 0 V; tr =tf = 6 ns; CL = 50 pF INPUT UNIT LOAD COEFFICIENT An 0.3 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. VT+ positive-going threshold 0.9 1.2 1.50 1.70 2.0 2.1 0.9 1.2 2.0 2.1 0.9 1.2 2.0 2.1 V 4.5 5.5 Fig.6 VT− negative-going threshold 0.7 0.8 1.06 1.27 1.4 1.7 0.7 0.8 1.4 1.7 0.7 0.8 1.4 2.7 V 4.5 5.5 Fig.6 VH hysteresis (VT+ − VT−) 0.2 0.2 0.44 0.44 0.8 0.8 0.2 0.2 0.8 0.8 0.2 0.2 0.8 0.8 V 4.5 5.5 Fig.6 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/ tPLZ propagation delay An to Yn 17 31 39 47 ns 4.5 Fig.7 tTHL output transition time 7 15 19 22 ns 4.5 Fig.7 |
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