TC74AC139FN Overview
It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The active low enable input can be used for gating or it can be used as a data input for demultiplexing applications. When the enable input is held “H”, all four outputs are fixed at a high logic level independent of the other inputs.
TC74AC139FN Key Features
- High speed: tpd = 5.9 ns (typ.) at VCC = 5 V
- Low power dissipation: ICC = 8 µA (max) at Ta = 25°C
- High noise immunity: VNIH = VNIL = 28% VCC (min)
- Symmetrical output impedance
- Balanced propagation delays: tpLH ∼- tpHL
- Wide operating voltage range: VCC (opr) = 2 V to 5.5 V
- Pin and function patible with 74F139
