CD74FCT245 Series

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

Link to Manufacturer Page: https://www.ti.com/

Catalog

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

Part	Supplier Device Package	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Current - Output High, Low	Package / Case	Package / Case	Package / Case	Output Type	Operating Temperature [Max]	Number of Elements [custom]	Number of Bits per Element	Package / Case
Texas Instruments CD74FCT245E	20-PDIP	4.75 V	5.25 V	Through Hole	15 mA, 64 mA	20-DIP	0.3 in	7.62 mm	3-State	70 °C	1	8
Texas Instruments CD74FCT245M96	20-SOIC	4.75 V	5.25 V	Surface Mount	15 mA, 64 mA	20-SOIC			3-State	70 °C	1	8	0.295 in, 7.5 mm
Texas Instruments CD74FCT245M	20-SOIC	4.75 V	5.25 V	Surface Mount	15 mA, 64 mA	20-SOIC			3-State	70 °C	1	8	0.295 in, 7.5 mm

Key Features

• BiCMOS Technology With Low Quiescent PowerBuffered InputsNoninverted OutputsInput/Output Isolation From VCCControlled Output Edge Rates64-mA Output Sink CurrentOutput Voltage Swing Limited to 3.7 VSCR Latch-Up-Resistant BiCMOS Process and Circuit DesignPackage Options Include Plastic Small-Outline (M) and Shrink Small-Outline (SM) Packages and Standard Plastic (E) DIPBiCMOS Technology With Low Quiescent PowerBuffered InputsNoninverted OutputsInput/Output Isolation From VCCControlled Output Edge Rates64-mA Output Sink CurrentOutput Voltage Swing Limited to 3.7 VSCR Latch-Up-Resistant BiCMOS Process and Circuit DesignPackage Options Include Plastic Small-Outline (M) and Shrink Small-Outline (SM) Packages and Standard Plastic (E) DIP

Description

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 VCC. 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 VCCbounce 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 VCCthrough 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. 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 VCC. 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 VCCbounce 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 VCCthrough 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.