CY74FCT244TSOCT
Active8-CH, 4.5-V TO 5.5-V BUFFERS WITH TTL-COMPATIBLE CMOS INPUTS AND 3-STATE OUTPUTS
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CY74FCT244TSOCT
Active8-CH, 4.5-V TO 5.5-V BUFFERS WITH TTL-COMPATIBLE CMOS INPUTS AND 3-STATE OUTPUTS
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Technical Specifications
Parameters and characteristics for this part
| Specification | CY74FCT244TSOCT |
|---|---|
| Current - Output High, Low [custom] | 64 mA |
| Current - Output High, Low [custom] | 32 mA |
| Logic Type | Buffer, Non-Inverting |
| Mounting Type | Surface Mount |
| Number of Bits per Element | 4 |
| Number of Elements | 2 |
| 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 | Cut Tape (CT) | 1 | $ 0.92 | |
| 10 | $ 0.82 | |||
| Digi-Reel® | 1 | $ 0.92 | ||
| 10 | $ 0.82 | |||
| Tape & Reel (TR) | 2000 | $ 0.35 | ||
| 6000 | $ 0.34 | |||
| 10000 | $ 0.32 | |||
| Texas Instruments | LARGE T&R | 1 | $ 0.62 | |
| 100 | $ 0.48 | |||
| 250 | $ 0.35 | |||
| 1000 | $ 0.25 | |||
Description
General part information
CD74FCT244AT Series
The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers 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.
These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state.
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
