SN74ACT1073DW

Specialty Logic Overview

The SN74ACT1073DW is a 16-bit bus-termination array with an integrated bus-hold function, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports input voltages up to 5.5 V. The device features low power consumption comparable to CMOS technology and includes internal diodes to reduce undershoot and overshoot caused by line reflections. It utilizes a center-pin VCC and GND configuration to minimize high-speed switching noise. The component provides ESD protection exceeding 2000-V human-body model and 200-V machine model standards. It is housed in a 20-pin SOIC (DW) package and functions across an operating temperature range of -40°C to +85°C.

Specialty Logic Feature Summary

• Integrated bus-hold function maintains the last valid logic state on floating bus lines without external pull-up or pull-down resistors.
• Low-impedance diodes clamp voltage levels to prevent signal integrity issues from line reflections.
• Center-pin VCC and GND configuration minimizes high-speed switching noise during operation.

Specialty Logic Applications

• Terminating output of driving devices in CMOS systems
• Holding inputs of driven devices at previous logic levels before high-impedance states
• Ensuring defined voltage levels on floating bus lines

Specialty Logic Procurement Notes

Verify the specific ordering suffix for the required packaging format, as the DW suffix indicates tube packaging while DWR indicates tape and reel. Confirm that the obsolete status of the standard DW variant does not impact long-term availability requirements. Ensure the selected part meets the -40°C to +85°C operating temperature range specified for this application. Cross-reference the latest package addendum for current production status and material compliance details.

Specialty Logic Selection Notes

Select the SN74ACT1073DW when designing CMOS systems requiring robust bus termination and hold capabilities. This component is suitable for applications needing to prevent bus lines from floating during high-impedance transitions. Consider the 20-pin SOIC package constraints and thermal impedance characteristics. Verify compatibility with TTL-voltage compatible inputs if interfacing with legacy logic families.

Specialty Logic Part Context

This component belongs to the SN74ACT logic family, designed for high-speed CMOS applications. It serves as a specialized buffer and driver solution focused on signal integrity rather than standard logic gating. The integration of bus-hold functionality distinguishes it from standard octal buffers or latches within the same series.

Specialty Logic Replacement Considerations

The SN74ACT1073DWR is the active tape-and-reel equivalent of the obsolete SN74ACT1073DW. Verify pinout and electrical specifications remain identical before substitution. Check for updated RoHS compliance and lead finish information in the latest package addendum.