74LVC16245ADGG-Q1J

Overview

The Nexperia 74LVC16245ADGG-Q1J is a 16-bit bus transceiver with 3-state outputs, housed in a 48-lead TSSOP package (SOT362-1). It operates on a supply voltage range of 1.2 V to 3.6 V and features inputs tolerant to 5.5 V. The device includes two output enables and two direction control inputs, allowing configuration as one 16-bit or two 8-bit transceivers. Qualified to AEC-Q100 Grade 1, it supports an operating temperature range from -40 °C to +125 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards for reliability in vehicle environments.
• Overvoltage tolerant inputs allow direct interfacing with 5 V devices while powered by lower voltages.
• IOFF circuitry prevents damaging backflow current during partial power-down states.
• Schmitt-trigger action at all inputs ensures tolerance for slower signal rise and fall times.

Applications

• Mixed 3.3 V and 5 V environment translation
• Partial power-down mode operation
• Direct interface with TTL levels

Procurement Notes

Verify the specific suffix 'Q1J' corresponds to the automotive-grade AEC-Q100 qualification and the TSSOP48 package type. Confirm that the ordering information matches the required temperature range of -40 °C to +125 °C. Ensure compatibility with the SOT362-1 footprint dimensions before finalizing procurement specifications.

Selection Notes

Select this component when bidirectional data transfer between 1.2 V to 3.6 V logic domains and 5 V tolerant interfaces is required. The dual enable and direction pins provide flexible control for complex bus architectures. Consider the low inductance multiple power and ground pins for applications sensitive to noise and ground bounce.

Part Context

This part belongs to the 74LVC family of high-speed CMOS logic. It is functionally similar to the non-automotive 74LVC16245ADGG but includes specific automotive reliability qualifications. The 'Q1J' suffix denotes the specific automotive grade and packaging variant within the broader 74LVC16245A product line.

Replacement Considerations

The 74LVCH16245ADGG-Q1J is a related variant within the same automotive qualification scope. Verify if the bus hold feature present in the LVCH version is required for the application, as the LVC version does not include this feature.

FAQ

Does the 74LVC16245ADGG-Q1J have bus hold functionality?

No, the bus hold feature is only available on the 74LVCH16245A-Q100 variant. The 74LVC16245A-Q100 does not include internal bus hold circuits on its data inputs.

How does the IOFF circuitry function?

The IOFF circuitry disables the outputs when the device is powered down, preventing potentially damaging backflow current through the device even if external signals are present.