MC74ACT245DWR2G

Overview

The MC74ACT245DWR2G is an octal bidirectional transceiver with 3-state outputs manufactured by onsemi. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum propagation delay of 9.0 ns at 5.0 V. The device provides high current sinking capability of 24 mA at both A and B ports, ensuring robust signal transmission in bus-oriented applications.

Feature Summary

• Features TTL-compatible inputs for direct interfacing with TTL logic systems.
• Provides bidirectional data path control via Transmit/Receive input.
• Includes Output Enable functionality to place ports in a High Z state.

Applications

• Bus-oriented memory and instrument control systems
• High-speed data transmission lines
• Multiplexed data networks

Procurement Notes

Verify the specific ordering suffix 'DWR2G' to confirm the SOIC-20W package type and tape-and-reel shipping configuration. Ensure compatibility with the required 4.5 V to 5.5 V operating voltage range and check that the lead-free status aligns with project specifications.

Selection Notes

Select this component when TTL-compatible inputs are required alongside AC-level performance. It serves as a suitable alternative to standard AC devices in 5 V systems where noise immunity from TTL thresholds is beneficial. Verify that the 24 mA output drive meets the load requirements of the target bus architecture.

Part Context

This part belongs to the MC74AC245/MC74ACT245 family of octal bidirectional transceivers. While sharing the same functional block diagram and pinout as the MC74AC245 variant, the ACT series specifically incorporates TTL-compatible input structures to facilitate seamless integration with legacy TTL logic families.

Replacement Considerations

MC74AC245DWR2G