CY74FCT245CTSOC
ActiveOCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
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CY74FCT245CTSOC
ActiveOCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
Technical Specifications
Parameters and characteristics for this part
| Specification | CY74FCT245CTSOC |
|---|---|
| Current - Output High, Low [custom] | 64 mA |
| Current - Output High, Low [custom] | 32 mA |
| Mounting Type | Surface Mount |
| Number of Bits per Element | 8 |
| Number of Elements | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | 3-State |
| Package / Case | 20-SOIC |
| Package / Case [y] | 0.295 in |
| Package / Case [y] | 7.5 mm |
| Supplier Device Package | 20-SOIC |
| Voltage - Supply [Max] | 5.25 V |
| Voltage - Supply [Min] | 4.75 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 0.84 | |
| 10 | $ 0.75 | |||
| 25 | $ 0.71 | |||
| 100 | $ 0.58 | |||
| 250 | $ 0.55 | |||
| 500 | $ 0.48 | |||
| 1000 | $ 0.38 | |||
| 2500 | $ 0.35 | |||
| 5000 | $ 0.34 | |||
| Texas Instruments | TUBE | 1 | $ 0.62 | |
| 100 | $ 0.48 | |||
| 250 | $ 0.35 | |||
| 1000 | $ 0.25 | |||
Description
General part information
CY74FCT245T Series
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.
Documents
Technical documentation and resources
