74ACTQ245SC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACTQ245SC is an octal bidirectional transceiver featuring three-state outputs, designed for bus-oriented applications. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature from -40°C to +85°C. The device utilizes FACT Quiet Series technology to ensure quiet output switching and improved dynamic threshold performance. It provides a current sinking capability of 24 mA at both A and B ports, with propagation delays typically around 7 ns under standard loading conditions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Utilizes FACT Quiet Series technology to guarantee quiet output switching and superior dynamic threshold performance.
• Features non-inverting bidirectional buffers with three-state outputs suitable for bus-oriented applications.
• Provides high current driving capability with 24 mA source/sink capacity at both A and B ports.

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented data transmission systems
• Memory address register buffering
• Bidirectional data path control

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type and lead-free status against the ordering code suffix. Confirm that the component meets the required environmental standards and moisture sensitivity levels for your assembly process. Ensure compatibility with existing logic families regarding input and output voltage thresholds before finalizing procurement decisions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring robust bidirectional data transfer with low noise characteristics. The ACTQ series is appropriate for applications needing TTL-compatible inputs and CMOS outputs. Consider the 24 mA drive strength for driving multiple loads or long bus lines without external buffering.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ACTQ family, which integrates ACT speed with Quiet Series noise reduction features. It serves as a direct replacement for standard 74ACT245 devices in designs where signal integrity and reduced simultaneous switching noise are critical requirements.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers include 74ACT245SC.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the Output Enable (OE) input function?

When the OE input is HIGH, both A and B ports are disabled and placed in a high-impedance state, effectively disconnecting the device from the bus.

What determines the direction of data flow?

The Transmit/Receive (T/R) input determines the direction. Data flows from A to B when T/R is HIGH, and from B to A when T/R is LOW.