The data sheet provides the features of CD54/74FCT240, 240AT, 241, 244 and 244AT three-state eight-way buffers/line drivers, including inputs, outputs, power supply, package, compatibility, etc.
The CD54/74FCT240‑244 series are three‑state octal buffers and line drivers built with a small‑geometry BiCMOS process. They feature buffered inputs, active‑LOW or active‑HIGH output enables, and output‑voltage swing limited to 3.7 V at a 5 V supply to reduce power‑bus ringing and EMI.
The devices offer 48 mA to 64 mA output‑sink current, typical propagation delays of 4.1 ns (FCT240AT/244AT) at VCC = 5 V, and are SCR‑latchup‑resistant. Ordering information, truth tables, and detailed switching specifications are provided, along with a legal notice regarding product warranties and critical‑application use.
| Typical Propagation Delay | 4.1 ns at VCC = 5V, TA = 25°C (FCT240AT, FCT244AT) |
|---|---|
| Output Sink Current | 48 mA to 64 mA |
| Output Voltage Swing | Limited to 3.7 V at VCC = 5 V |
The typical propagation delay is 4.1 ns at VCC = 5 V and TA = 25 °C.
They can sink between 48 mA and 64 mA.
Yes, the devices are sensitive to ESD and require proper handling procedures.
The output voltage swing is limited to 3.7 V when VCC is 5 V.