CD74FCT245 - BiCMOS FCT Interface Logic Octal Non-Inverting Bus Transceivers with 3-State Outputs

The CD74FCT245 is an octal bus transceiver with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below V_CC. This resultant lowering of output swing (0 V to 3.7 V) reduces the power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes V_CC bounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 mA.

The CD74FCT245 allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. The output-enable (OE\) input can be used to disable the device so that the buses are effectively isolated.

To ensure the high-impedance state during power up or power down, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The CD74FCT245 is characterized for operation from 0°C to 70°C.

Products containing the "CD74FCT245" keyword are: CD74FCT245ATE , CD74FCT245ATQM , CD74FCT245CTQM , CD74FCT245E , CD74FCT245E , CD74FCT245EE4 , CD74FCT245EG4 , CD74FCT245M , CD74FCT245M , CD74FCT245M96 , CD74FCT245M96 , CD74FCT245M96E4 , CD74FCT245M96G4 , CD74FCT245ME4 , CD74FCT245MG4 , CD74FCT245MG4 , CD74FCT245SM , CD74FCT245TM

• BiCMOS Technology With Low Quiescent Power
• Buffered Inputs
• Noninverted Outputs
• Input/Output Isolation From V_CC
• Controlled Output Edge Rates
• 64-mA Output Sink Current
• Output Voltage Swing Limited to 3.7 V
• SCR Latch-Up-Resistant BiCMOS Process and Circuit Design
• Package Options Include Plastic Small-Outline (M) and Shrink Small-Outline (SM) Packages and Standard Plastic (E) DIP