TC74HCT157AF

TC74HCT157AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HCT157AP, TC74HCT157AF Quad 2-Channel Multiplexer The TC74HCT157A is a high speed CMOS 2-CHANNEL MULTIPLEXERs fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. This device may be used as a level converter for interfacing TTL or NMOS to High Speed CMOS. The inputs are compatible with TTL, NMOS and CMOS output voltage levels. When STROBE is held high, selection of data is inhibited and all the outputs become low. The SELECT decoding determines whether the A or B inputs get transferred to their corresponding Y outputs. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Features High speed: tpd = 21 ns (typ.) at VCC = 5 V Low power dissipation: ICC = 4 μA (max) at Ta = 25°C Compatible with TTL outputs: VIH = 2.0 V (min) VIL = 0.8 V (max) Wide interfacing ability: LSTTL, NMOS, CMOS Output drive capability: 10 LSTTL loads Symmetrical output impedance: |IOH| = IOL = 4 mA (min) Balanced propagation delays: tpLH ∼− tpHL Pin and function compatible with 74LS157 Pin Assignment TC74HCT157AP TC74HCT157AF Weight DIP16-P-300-2.54A SOP16-P-300-1.27A : 1.00 g (typ.) : 0.18 g (typ.) Start of commercial production 1989-05 1 2014-03-01 IEC Logic Symbol TC74HCT157AP/AF Truth Table Inputs ST SELECT A H X X L L L L L H L H...