Bicmos Fct Interface Logic, Octal D-type Flip-flops, Three-state

  The CD74FCT564 and CD74FCT574 are octal D-Type, three-state, positive edge triggered ?ip-?ops which 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 con?guration also enhances switching speed and is capable of sinking 48 milliamperes. The eight ?ip-?ops enter data into their Registers on the LOW to HIGH transition of the clock (CP). The Output Enable (OE) controls the three state outputs and is independent of the Register operation. When the Output Enable (OE) is HIGH, the outputs are in the high impedance state. The CD74FCT564 and CD74FCT574 share the same con?gurations; the CD74FCT564 however, has inverted outputs and the CD74FCT574 has noninverted outputs.
Item: CD74FCT564
File Size : 3 KB
Pages : 5 Pages

Other Part Numbers in this pdf file

CD74FCT574SM   CD74FCT574M   CD74FCT574E   CD74FCT564M   CD74FCT564E  
Texas Instruments Incorporated
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