Advanced high-speed logic

The advanced high-speed CMOS AHC(T) logic family is a speed upgrade of HC(T) with over-voltage tolerant inputs for true mixed voltage applications. NXP’s provides AHC products for use in 2.0 V to 6.0 V CMOS applications and AHCT products for use in 4.5 V to 5.5 V TTL applications.

AHC(T) logic devices are specified over 2.0 V to 6.0 V. With a balanced output drive of 8 mA and typical propagation delay of 5 ns, the AHC(T) family includes buffers/line drivers, transceivers, gates, shift registers and analog switches.

AHC(T) products are available in SO, TSSOP and PicoGate as well as innovative leadless DQFN and MicroPak packages for PCB space saving. NXP’s AHC(T) products are fully specified from -40 °C to 125 °C.


  • 5 ns typical propagation delay
  • Output drive capability IOH / IOL = ±8 mA
  • Low power
  • 5 V tolerant inputs
  • Low noise: VOLP = 0.8 V (max.)

Target Applications

  • Industrial
  • Consumer electronics
  • Computer peripherals
  • Communications