BiCMOS FCT Interface Logic, Octal Buffers/Line Drivers, Three-State

The CD74FCT540 and CD74FCT541 octal Buffers Line Drivers use a small geometry BiCMOS technology. The output stage is a combination of bipolar and CMOS Transistors that limits the output HIGH level to two Diode drops below VCC. This resultant lowering of output swing (0V to 3.7V) reduces power bus ringing (a source of EMI) and minimizes VCC bounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 milliamperes. The CD74FCT540 is a three-state Buffer having two active LOW output enables. The CD74FCT541 is a noninverting three state Buffer having two active LOW output enables. By Texas Instruments