CY74FCT245T Series

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

Catalog

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

Part	Number of Bits per Element	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Supplier Device Package	Package / Case	Package / Case [y]	Package / Case [y]	Number of Elements	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Output Type	Package / Case	Package / Case	Package / Case [custom]	Package / Case [custom]
Texas Instruments CY74FCT245CTSOC	8	64 mA	32 mA	20-SOIC	20-SOIC	0.295 in	7.5 mm	1	4.75 V	5.25 V	85 °C	-40 °C	Surface Mount	3-State
Texas Instruments CD74FCT245M96	8	64 mA	15 mA	20-SOIC	20-SOIC	0.295 in	7.5 mm	1	4.75 V	5.25 V	70 °C	0 °C	Surface Mount	3-State
Texas Instruments CY74FCT245ATPCG4	8	64 mA	32 mA	20-PDIP	20-DIP			1	4.75 V	5.25 V	85 °C	-40 °C	Through Hole	3-State	7.62 mm	0.3 in
Texas Instruments CY74FCT245TSOCG4	8	64 mA	32 mA	20-SOIC	20-SOIC	0.295 in	7.5 mm	1	4.75 V	5.25 V	85 °C	-40 °C	Surface Mount	3-State
Texas Instruments CY74FCT245ATSOC	8	64 mA	32 mA	20-SOIC	20-SOIC	0.295 in	7.5 mm	1	4.75 V	5.25 V	85 °C	-40 °C	Surface Mount	3-State
Texas Instruments CD74FCT245E	8	64 mA	15 mA	20-PDIP	20-DIP			1	4.75 V	5.25 V	70 °C	0 °C	Through Hole	3-State	7.62 mm	0.3 in
Texas Instruments CY74FCT245CTQC	8	64 mA	32 mA	20-SSOP	20-SSOP			1	4.75 V	5.25 V	85 °C	-40 °C	Surface Mount	3-State			0.154 in	3.9 mm
Texas Instruments CY74FCT245CTSOCT	8	64 mA	32 mA	20-SOIC	20-SOIC	0.295 in	7.5 mm	1	4.75 V	5.25 V	85 °C	-40 °C	Surface Mount	3-State
Texas Instruments CY74FCT245DTQCT	8	64 mA	32 mA	20-SSOP	20-SSOP			1	4.75 V	5.25 V	85 °C	-40 °C	Surface Mount	3-State			0.154 in	3.9 mm
Texas Instruments CY74FCT245ATSOCT	8	64 mA	32 mA	20-SOIC	20-SOIC	0.295 in	7.5 mm	1	4.75 V	5.25 V	85 °C	-40 °C	Surface Mount	3-State

Catalog

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

Key Features

• Function, Pinout, and Drive Compatible With FCT and F LogicReduced VOH(Typically = 3.3 V) Versions of Equivalent FCT FunctionsEdge-Rate Control Circuitry for Significantly Improved Noise CharacteristicsIoffSupports Partial-Power-Down Mode OperationESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)Matched Rise and Fall TimesFully Compatible With TTL Input and Output Logic LevelsCY54FCT245T48-mA Output Sink Current12-mA Output Source CurrentCY74FCT245T64-mA Output Sink Current32-mA Output Source Current3-State OutputsFunction, Pinout, and Drive Compatible With FCT and F LogicReduced VOH(Typically = 3.3 V) Versions of Equivalent FCT FunctionsEdge-Rate Control Circuitry for Significantly Improved Noise CharacteristicsIoffSupports Partial-Power-Down Mode OperationESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)Matched Rise and Fall TimesFully Compatible With TTL Input and Output Logic LevelsCY54FCT245T48-mA Output Sink Current12-mA Output Source CurrentCY74FCT245T64-mA Output Sink Current32-mA Output Source Current3-State Outputs

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.