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74HC181D Datasheet(PDF) 3 Page - NXP Semiconductors |
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74HC181D Datasheet(HTML) 3 Page - NXP Semiconductors |
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3 / 20 page  1998 Jun 10 3 Philips Semiconductors Product specification 4-bit arithmetic logic unit 74HC/HCT181 QUICK REFERENCE DATA GND = 0 V; Tamb =25 °C; tr =tf =6ns Notes 1. CPD is used to determine the dynamic power dissipation (PD in µW): PD =CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where: fi = input frequency in MHz fo = output frequency in MHz ∑ (CL × VCC2 × fo) = sum of outputs CL = output load capacitance in pF VCC = supply voltage in V 2. For HC the condition is VI = GND to VCC For HCT the condition is VI = GND to VCC − 1.5 V SYMBOL PARAMETER CONDITIONS TYPICAL UNIT HC HCT tPHL/ tPLH propagation delay CL = 15 pF; VCC =5V An or Bn to A=B 28 30 ns Cn to Cn+417 21 ns CI input capacitance 3.5 3.5 pF CPD power dissipation capacitance per L package notes 1 and 2 90 92 pF Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol. A B |
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