74ACT245SC_NL

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACT245SC_NL is an octal bidirectional transceiver belonging to the 74ACT logic family. It features eight non-inverting buffers with three-state outputs, designed for bus-oriented applications. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL-compatible inputs with CMOS output levels. It provides a propagation delay of 8 ns and delivers a low-level output current of 24 mA alongside a high-level output current of -24 mA. The component is housed in a 20-pin SOIC package and functions within a temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional data path supporting simultaneous transmission between A and B ports
• Three-state outputs allowing connection to shared buses without signal contention
• TTL-compatible input thresholds ensuring interoperability with standard logic families

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented data transmission systems
• Memory module interfacing
• Microcontroller peripheral expansion

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm package type and moisture sensitivity classification. Ensure the ordering part number matches the required tape-and-reel or tube configuration. Cross-reference the RoHS compliance status with the most recent datasheet revision to meet environmental regulations. Confirm that the lead finish meets the target assembly process requirements before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal transceiver with ACT speed and TTL compatibility is required. The 24 mA drive capability suits moderate load conditions on system buses. Verify that the operating voltage aligns with the 4.5 V to 5.5 V specification. Consider the SOIC-20 footprint constraints during PCB layout. Evaluate thermal performance if multiple units operate simultaneously within the specified temperature range.

Buffers, Drivers, Receivers, Transceivers Part Context

This device is part of the 74ACT series, which combines the speed of advanced bipolar technology with CMOS power efficiency. The 74ACT245 variant specifically addresses the need for high-density bus interfaces in digital systems. It serves as a bridge between different logic domains, facilitating reliable data transfer across complex circuit architectures while maintaining signal integrity through controlled output impedance.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74ACTQ245SC is listed as a similar alternative by the manufacturer. Other compatible options include SN74ACT245DWR from Texas Instruments and MC74ACT245DWR2G from onsemi. Verify pinout compatibility and electrical specifications before substitution.