SN74LV8T245QDGSRQ1

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LV8T245QDGSRQ1 is an automotive-grade octal bus transceiver with configurable voltage translation and three-state outputs. It operates on a single supply voltage ranging from 1.6 V to 5.5 V, supporting standard CMOS levels of 1.8 V, 2.5 V, 3.3 V, and 5 V. The device features enhanced input thresholds for up-translation from lower voltages (e.g., 1.2 V to 1.8 V) and 5.5 V tolerant inputs for down-translation. It supports data rates up to 150 Mbps at 5 V or 3.3 V supplies. The component is qualified under AEC-Q100 standards for Grade 1 operation across a temperature range of -40°C to +125°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• AEC-Q100 qualified for automotive applications with specified temperature grades and ESD classification levels.
• Configurable voltage translation capabilities enabling both up-translation from low-voltage sources and down-translation from higher voltage sources.
• Balanced CMOS three-state outputs that can source and sink similar currents while maintaining high-impedance states.
• Wettable flank design in specific packages to improve side wetting and facilitate automatic optical inspection.

Buffers, Drivers, Receivers, Transceivers Applications

• Enabling or disabling digital signals within automotive systems
• Eliminating slow or noisy input signals
• Holding signals during controller reset sequences
• Switch debounce circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the exact package marking and reel specifications against the manufacturer's orderable addendum. Confirm that the DGS (VSSOP-20) variant matches the required footprint and thermal characteristics for the target PCB layout. Ensure compliance with RoHS directives and check for any specific handling requirements related to moisture sensitivity levels before assembly.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing between logic families operating at different voltage levels, such as translating 1.2 V or 1.8 V signals to 3.3 V or 5 V domains. It is suitable for designs requiring bidirectional data flow controlled by a single direction pin. Consider the thermal resistance values provided for the VSSOP package if operating near maximum temperature limits.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVxT245-Q1 family of automotive octal bus transceivers. It shares functional similarities with other LVxT devices but is specifically optimized for voltage level shifting in automotive environments. The 'Q1' suffix denotes automotive qualification, while 'DGS' indicates the VSSOP-20 package type.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LV8T245RKSQ1 (VQFN-20 package)

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle voltage translation?

The device uses enhanced input thresholds to support up-translation from lower voltages like 1.2 V or 1.8 V. For down-translation, it utilizes 5.5 V tolerant inputs to accept higher voltage signals and output levels referenced to the VCC supply.

What controls the direction of data flow?

Data flow direction is controlled by the DIR pin. When DIR is low, data flows from B to A; when DIR is high, data flows from A to B. The OE pin enables or disables all outputs simultaneously.