TC74HC238AF

TC74HC238AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC238AP, TC74HC238AF 3-to-8 Line Decoder The TC74HC238A is a high speed CMOS 3-to-8 DECODER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent LSTTL 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 high. When enable input G1 is held low or either G2A or G2B is held high, decoding function is inhibited and all the outputs go low. G1, G2A , and G2B inputs are provided ease cascade connection and for use as an adress decoder for memory systems. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Features High speed: tpd = 14 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) 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 compatible with 74LS238 Pin Assignment TC74HC238AP TC74HC238AF Weight DIP16-P-300-2.54A SOP16-P-300-1.27A : 1.00 g (typ.) : 0.18 g (typ.) Start of commercial production 1987-11 1 2014-03-01 IEC Logic Symbol TC74HC238AP/AF Truth Table Inputs Enable Select G1 G2A G2B C B A L X X X X X X H X X X X X ...