MC74AC245NG

Overview

The MC74AC245NG is an octal bidirectional transceiver with three-state outputs manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 6.0 V and supports an operating temperature from -40°C to +85°C. The device features non-inverting buffers with a propagation delay of up to 8.5 ns at 5.0 V. Each port provides a sink/source current capability of 24 mA. The package type is SOIC-20, designated as CASE 751D.

Feature Summary

• Bidirectional data path controlled by Transmit/Receive input
• Three-state outputs for bus-oriented applications
• High current drive capability at both A and B ports

Applications

• Bus-oriented data transmission systems
• Memory interface circuits
• Digital signal routing between logic blocks

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and shipping configuration. Ensure compatibility with required voltage levels and thermal management specifications before integration into final designs.

Selection Notes

Select this component for applications requiring high-speed bidirectional data transfer with significant drive strength. Consider the AC series characteristics for wide voltage operation compared to ACT variants which offer TTL-compatible inputs but narrower voltage ranges.

Part Context

This part belongs to the MC74AC245 family of octal bus transceivers. It shares functional similarities with other members like the MC74ACT245, though electrical characteristics such as input thresholds and supply voltage limits differ based on the specific logic series designation.

Replacement Considerations

MC74AC245DWG (SOIC-20 rail), MC74AC245DTR2G (TSSOP-20 reel). Verify pinout and electrical parameters match requirements when substituting.