SNJ54ABT8646JT

Buffers, Drivers, Receivers, Transceivers Overview

The SNJ54ABT8646JT is a military-grade scan test device featuring an octal bus transceiver and registers, belonging to the Texas Instruments SCOPE family. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a wide operating temperature range from -55°C to +125°C. The component utilizes a 28-pin ceramic dual in-line package (CDIP) designated as JT, ensuring reliability for harsh environments. This specific part number represents the hermetically sealed military variant of the SN74ABT8646 series.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrates an octal bus transceiver with dedicated registers for comprehensive data handling.
• Designed specifically for scan test applications to enhance circuit testability.
• Constructed using ABT technology to support high-speed signal transmission.
• Hermetically sealed ceramic packaging provides robust protection against environmental factors.

Buffers, Drivers, Receivers, Transceivers Applications

• Military aerospace electronic systems requiring high reliability
• Automated test equipment (ATE) infrastructure
• Harsh environment industrial control logic interfaces

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the procurement source explicitly confirms the 'JT' suffix indicates the military-grade ceramic package. Ensure documentation certifies compliance with military specifications regarding temperature range and hermetic sealing. Request traceability records if required for defense or aerospace contracts. Confirm RoHS status aligns with project constraints, noting that military parts may have different regulatory classifications than commercial equivalents.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when military-grade environmental resilience and hermetic sealing are mandatory requirements. It serves as the ruggedized alternative to the commercial SN74ABT8646 variants. Choose this part for designs operating in extreme temperatures beyond standard commercial limits. Ensure the design accommodates the physical dimensions and pinout of the 28-lead ceramic dual in-line package.

Buffers, Drivers, Receivers, Transceivers Part Context

This device is part of the broader SN54/74ABT8646 family of scan test devices. While the commercial SN74ABT8646 variants use plastic packages like SOIC or SSOP, the SNJ54ABT8646JT specifically denotes the military version. It shares the same logical functionality but differs in construction materials and environmental ratings to meet stringent military standards.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct functional substitutes include other military-grade octal bus transceivers with registers. Commercial equivalents such as the SN74ABT8646DWR or SN74ABT8646DLR offer identical logic but lack the military temperature range and hermetic seal. Verify package compatibility when substituting with non-ceramic variants.

Buffers, Drivers, Receivers, Transceivers FAQ

What does the 'JT' suffix indicate in the part number?

The 'JT' suffix identifies the component as a military-grade device housed in a 28-lead ceramic dual in-line package (CDIP).

How does this device differ from the SN74ABT8646?

The SNJ54ABT8646JT is the military-grade version with a wider temperature range (-55°C to +125°C) and hermetic ceramic packaging, whereas the SN74ABT8646 is the commercial grade with lower temperature limits and plastic packaging.