TC74AC138FN Overview
It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. When the device is enabled, 3 Binary Select inputs (A, B and C) determine which one of the outputs ( Y0 - Y7 ) will go low. When enable input G1 is held low or either G2A or G2B is held high, decoding function is inhibited and all outputs go high.
TC74AC138FN 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% VDCaCt(amSihn)eet4U
- Symmetrical output impedance: |IOH| = IOL = 24 mA (min) Capability of driving 50 Ω transmission lines
- Balanced propagation delays: tpLH ∼- tpHL
- Wide operating voltage range: VCC (opr) = 2 to 5.5 V
- Pin and function patible with 74F138
