TC74HC21AP Overview
It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. The internal circuit is posed of 4 stages including buffer an output, which provide high noise immunity and stable output. All inputs are equipped with protection circuits against static discharge or transient excess voltage.
TC74HC21AP Key Features
- High speed: tpd = 10 ns (typ.) at VCC = 5 V
- Low power dissipation: ICC = 1 μA (max) at Ta = 25°C
- High noise immunity: VNIH = VNIL = 28% VCC (min)
- Output drive capability: 10 LSTTL loads
- Symmetrical output impedance: |IOH| = IOL = 4 mA (min)
- Balanced propagation delays: tpLH ∼- tpHL
- Wide operating voltage range: VCC (opr) = 2 to 6 V
- Pin and function patible with 74LS21