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TC74VHC257FK Key Features

  • High speed: tpd = 3.6 ns (typ.) at VCC = 5 V
  • Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
  • High noise immunity: VNIH = VNIL = 28% VCC (min)
  • Power down protection is provided on all inputs
  • Balanced propagation delays: tpLH ∼- tpHL
  • Wide operating voltage range: VCC (opr) = 2 to 5.5 V
  • Low noise: VOLP = 0.8 V (max)
  • Pin and function patible with 74ALS257

TC74VHC257FK Description

It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. It is posed of four independent 2-channel multiplexers with mon SELECT and OUTPUT ENABLE ( OE ). If OE is set low, the outputs are held in a high-impedance state.